PLEASE SOMEONE HELP ME
question 6
The exponential function in the graph shows the value, in dollars, of an investment over time. What real-world information is given by each feature of the graph?
THE TWO PICTURES GOES WITH QUESTION 6
Question 12
Evan runs a website that has gotten quite popular. However, its popularity seems to be decreasing and the site is now getting 7% fewer hits each week. If Evan's site got 34,000 hits this week, how many weekly hits can he expect it to get 3 weeks from now?
Round to the nearest whole number.
A. 134,360 hits
B. 27,348 hits
C. 41,651 hits
D. 714,000 hits
Answers
Considering exponential functions, it is found that:
6.
(1.7.5): The value after one year.y-intercept of 10: starting value.12. The number of hits 3 weeks from now will be of 27,348, hence option B is correct.
What is an exponential function?An exponential function is modeled according to the rule given next:
[tex]y = ab^x[/tex]
The parameters of the exponential function are defined as follows:
a is the y-intercept, which is the numeric value of the function when x = 0.b is the rate of change of the function.For item 6, considering the points (0,10) and (1,7.5), the parameters are given as follows:
y-intercept of 10, which is the starting value.When x = 1, y = 7.5, given the value after one year.For item 12, the initial amount and the rate of change are given as follows:
a = 34,000, b = 1 - 0.07 = 0.93.
Hence the number of hits x weeks from now is modeled according to the following function:
[tex]h(x) = 34000(0.93)^x[/tex]
After 3 weeks, x = 3, hence the number of hits will be of:
[tex]h(3) = 34000(0.93)^3 = 27348[/tex]
Meaning that option B is correct.
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Related Questions
If 1 ft = 12 inches, how many square inches are in the rectangle shown below
Answers
Based on the dimensions of the rectangle, the number of square inches that are in the rectangle are 23,040 inches ²
How to find the area?x
First, convert the units of the rectangle from feet to inches so that it is easier to find the area.
Length of rectangle in inches:
= 16 x 12 inches per ft
= 192 inches
Width of rectangle:
= 10 x 12 inches per ft
= 120 inches
The area is:
= 192 x 120
= 23,040 inches ²
In conclusion, there are 23,040 square inches in the rectangle.
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What is the missing length?? Of this triangular prism
Answers
Answer:
h = 2.5 cm
Step-by-step explanation:
the volume (V) of a triangular prism is calculated as
V = area of triangular end × length , that is
V = [tex]\frac{1}{2}[/tex] bh × l
given b = 4, l = 7 and V = 35 , then
[tex]\frac{1}{2}[/tex] × 4 × h × 7 = 35
14h = 35 ( divide both sides by 14 )
h = 2.5 cm
Tia drives 127 miles a week. Mac drives 23 times as many miles as Tia a week. How many miles does Mac drive a week?
Answers
Mac drives 2921 miles per week as compared to Tia
Comparing numbers is a technique for determining if one number is equal to, smaller than, or larger than the other numbers. To compare two numbers, we write them using several symbols. In our daily lives, we make comparisons of figures, such as the daily temperature, the cost of things used on a regular basis, our height and weight, etc. The number with more digits is greater than the number with fewer digits when they are natural numbers.
Miles drove by Tia = 127 miles a week
Miles driven by Mac = Miles driven by Tia*23
= 127*23
2921
So, Mac drove 2921 miles
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an ant starts from the origin (0, 0) of an xy-grid. each time it moves, it goes either up (50% chance) or right (50% chance) by one unit of distance. after 12 moves, what is the probability that the ant is located at the point (4, 8)?
Answers
The given ant can only go up or right here in every turn and as there is a 50% chance for either of
them, therefore each of the paths in 12 moves would be equally likely here.
As for each of the 12 steps here, there are 2 ways that the ant can move, therefore total number of
paths in 12 moves is computed as:
= 2^12 here.
We use the multiplication rule for independent events here to get the total number of outcomes here
by getting the product of the number of outcomes for each of those independent events.
Total number of 12 move paths such that we reach 4, 8 here is computed as the number of
permutation of 12 moves with 4 rights and 8 up points here. This is computed here as:
12!/(8!4!) = 495
Therefore, the probability that the ant is located at (4, 8) here is computed as:
=
495/(2^12)
= 0.1208
Therefore, 0.1208 is the required probability here
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A 8 letter Code word is selected. What is the probability that there are no repeated letters?
Answers
Answer:
0.3016
Step-by-step explanation:
If we have an 8 letter code word...
Total number of possible letters = 26
The number of letters possible = 8
So...
26 ^ 8 = 0.3016
Hope this helps!
Answer:
[tex]\approx 0.30164[/tex]
Step-by-step explanation:
The Alphabet contains 26 characters, and to better understand this probability, let's do each letter one step at a time.
Any letter being chosen should have an equal probability of: [tex]\frac{1}{26}[/tex], and for the first letter we don't really have to worry about choosing a non-repeated letter, since it's impossible to have a non-repeated letter on the first letter... since it's the first letter, so no other letter has been chosen.
This means we have a probability of: 1 to get a non-repeated letter when we choose the first letter.
The probability when we choose the 2nd letter is different, since there is a possibility of choosing a repeated letter. As stated above, the probability of choosing any one letter should be equal for each letter and is: [tex]\frac{1}{26}[/tex]
Since we want to avoid this one letter we choose in the beginning, the probability of choosing it is: [tex]\frac{1}{26}[/tex], which means the probability of not choosing it is: [tex]\frac{25}{26}[/tex]
For the 3rd letter it follows the same pattern, assuming we have two non-repeated letters, the probability of choosing a repeated letter from the previous two is there combined probabilities of: [tex]\frac{1}{26} + \frac{1}{26} = \frac{2}{26}[/tex]. Since we want a non-repeated letter, we subtract this probability from one, because the entire probability will equal one.
This gives us a probability of: [tex]\frac{24}{26}[/tex] of choosing a non-repeated letter.
You'll notice a pattern, the numerator is decreasing by one! This makes sense since each time we choose a non-repeated letter, well the number of non-repeated letters will decrease by one.
This gives us the probability for each letter up to eight letters
[tex]\frac{26}{26}, \frac{25}{26}, \frac{24}{26}, \frac{23}{26}, \frac{22}{26}, \frac{21}{26}, \frac{20}{26}, \frac{19}{26}[/tex]
To get an eight letter code that has no no repeated letters, all these events have to occur. To find the collective probabilities of all these events happening, we simply multiply them, assuming they're independent which we have no reason to believe they aren't independent.
This gives us a total probability of approximately: [tex]0.30164[/tex]
What is the magnitude, ||v|| of vector v = (4, 3)?
F, √2
G, √6
H. 2√5
J. 5
K. 7
Answers
Answer:
J
Step-by-step explanation:
the magnitude of a vector (a, b ) is
[tex]\sqrt{a^2+b^2}[/tex]
then magnitude of vector v = (4, 3 ) is
| v | = [tex]\sqrt{4^2+3^2}[/tex] = [tex]\sqrt{16+9}[/tex] = [tex]\sqrt{25}[/tex] = 5
What does the constant 0.9955 reveal about the rate of change of the quantity?
Answers
The model given is:
[tex]f(t)=290(0.9955)^{60t}[/tex]The term in the parentheses represents the change of rate of the model. If the number is the parentheses is less than 1, we call it exponential decay.
If the number in parentheses is bigger than 1, we call it exponential growth.
In this case, the correct option is "decaying"
The number in parentheses let's call it R, is:
[tex]R=1-r[/tex]Where r is the rate of change. To find it:
[tex]\begin{gathered} 0.9955=1-r \\ . \\ r=1-0.9955=0.0045 \end{gathered}[/tex]To convert to percentage, we convert by multiplying by 100::
[tex]0.0045\cdot100=0.45\%[/tex]The second answer is 0.45%
And since t is the time passed in hours, and has a "60" multiplying it, the last answer is: Every 60 hours
The final answer is:
The function is exponentially decaying at a rate of 0.45% evary 60 hours.
Complete each of the statements below with the correct answer choice.
The cost of the phone plans will be the same for company A and company B when gigabytes of data are used.
If company A changes the cost of data per gigabyte to then the two phone plans will never have the same cost.
If company B's initial monthly cost
and the cost of data per gigabyte
phone plans will always be the same.
11 of 20 Answered
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then the cost of the two
Session Score: 82% (9/11)
0
Answers
Using linear functions, it is found that:
The costs will be the same when 5 GB are used.If company A changes the cost of data per gigabyte to $8 then the two phone plans will never have the same cost.If company B's initial monthly cost decreases by $10 and the cost of increases by $2, then the cost of the two phone plans will always be the sameWhat is a linear function?A linear function is modeled as follows:
y = mx + b.
In which the parameters of the function are as follows:
m is the slope.b is the y-intercept.For the cost functions in this problem, we have that:
The slope is the cost per GB.The intercept is the flat cost.Hence the functions are given as follows:
A(x) = 50 + 10x.B(x) = 60 + 8x.The costs will be the same when:
A(x) = B(x)
Hence:
50 + 10x = 60 + 8x
2x = 10
x = 5 GB are used.
If two functions have the same slope and different intercept they are parallel, that is, they never intersect, hence if company A starts charging $8 per GB, this will happen.
The costs will always be the same when the functions are equal, that is, if:
B(x) = A(x) = 50 + 10x.
Decreasing the flat fee to $50 and increasing the cost per GB to $10.
Missing informationThe complete problem is:
Liam is comparing the costs of phone plans at two different companies to determine which plan to buy. Company A charges $50 each month plus an additional $10 per gigabyte of data used. Company B charges $60 each month plus an additional $8 per gigabyte of data used. The following equation represents the cost of the phone plans for the two companies when they are equal, where g represents the amount of gigabytes of data used.
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Please help me. I don’t understand this. Due today.
Answers
The rate of change of the graph of what the health club charges is; 43
What is the rate of change?The rate of change is simply the slope of the graph which is the change in y-values per change in corresponding x-values. Thus;
Rate of change here is;
Slope = (y₂ - y₁)/(x₂ - x₁)
We have two coordinates as; (3, 169) and (8, 384) which represents the graph of what the health club charges.
Thus;
Rate of change = (384 - 169)/(8 - 3)
Rate of change = 43
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jane is building a basic stand using wooden blocks. A wooden block that is 5/8 inch thick is glued to a wooden block that is 3/4 inch thick. What is the combined thicknedd of the two blocks of wood
Answers
Answer:
1 ⅜
Step-by-step explanation:
⅝ + ¾ = 11/8 or 1 ⅜
x² + 6x-27=(x- -)(x +-)
Answers
Answer:
[tex] {x}^{2} + 6x - 27 = (x + 9)(x - 3)[/tex]
x^2 + 6x - 27 = (x - 3) (x + 9)
y is inversely proportional to x.
when y = 80, x = 3
Work out x when y = 24
Answers
The most appropriate choice for proportionality will be given by
When y = 24, x = 10
What is proportionality?
Any relationship which maintains the same ratio is known as proportionality.
Proportionality can be of two types-
Direct Proportion and inverse proportion
Direct proportion
Two quantities are said to be directly proportional, if on increasing the value of one quantity, the value of other quantity also increases and vice versa
For Example- Cost of a commodity and quantity of a commodity are direct proportional.
Inverse proportion
Two quantities are said to be inversely proportion, if on increasing the value of one quantity, the value of other quantity decreases.
For Example- Number of men and time taken by those men to do a certain work are inversely proportional.
Here,
y is inversely proportional to x
[tex]y = k \times \frac{1}{x}[/tex], where [tex]k[/tex] is an arbitrary constant known as proportionality constant
when y = 80, x =3
Putting the value of y and x in the above equation,
[tex]80[/tex] = [tex]k \times \frac{1}{3}[/tex]
[tex]k = 80 \times 3\\k = 240[/tex]
So [tex]y = 240 \times \frac{1}{x}[/tex]
when [tex]y = 24[/tex]
[tex]24 = 240 \times \frac{1}{x}[/tex]
[tex]x = \frac{240}{24}[/tex]
[tex]x = 10[/tex]
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Two sets, R and S, are described below.
The sum of the elements in set R equals
the sum of the elements in set S.
R = {5, x, 3, 8}
S = {6, y, 4, 1}
What is the value of x − y ?
E. −7
F. −5
G. 5
H. 7
Answers
Answer:
F. -5
Step-by-step explanation:
R = {5, x, 3, 8}
Sum of R: x + 16
S = {6, y, 4, 1}
Sum of S: y + 11
The sums are equal.
x + 16 = y + 11
x - y = 11 - 16
x - y = -5
Answer: F. -5
Jonny, Becky and Sara share £138.
The ratio of the amount of money Jonny gets to
the amount of money Sara gets is 1:4.
Jonny gets £69 less than Sara gets.
What percentage of the £138 does Becky get?
Answers
If Johny receives £x, then Sara will receive £4x (Given ratio is 1:4).
Describe ratio.In mathematics, a ratio shows how many times one number is contained in another.
For instance, if there are eight oranges and six lemons in a fruit plate, the orange to lemon ratio is eight to six (that is, 8:6, which is equivalent to the ratio 4:3).
Similarly, the ratio of oranges to total fruit is 8:14, while the ratio of lemons to oranges is 6:8 (or 3:4). (or 4:7). Numbers in a ratio can represent any quantity, including counts of people or objects, weights, lengths, times, and so on. Most of the time, both numbers have to be positive.
If Johny receives £x, then Sara will receive £4x (Given ratio is 1:4).
assumable, 4x - x = £69
or, 3x = 69
or, x = 69/3 = £21
Then Johny receives £21 and Sara receives £84 (4x£21).
Becky receives £(138-(21+84)) = £33 as well.
Her proportion in the ratio is equal to (33/138) x 100% (23.91%).
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Find the word tradition in paragraph 5 of “The Lottery.” Use context clues in the surrounding sentences, as well as the sentence in which the word appears, to determine the word’s meaning. Write your definition here and identify clues that helped you figure out its meaning.
Answers
Answer:
Step-by-step explanation:
Please help me answer this, I didn’t mean to click A i don’t know if it’s right or not
Answers
Answer:
A is actually correct :)
Step-by-step explanation:
1/5^6
:]
The
measure of an acute angle is represented by (3x + 12)°. which is not a possible value of x
Answers
Answer:
I don't know about this b
Answer:
possible value would be 28
Step-by-step explanation:
an acute angle is an angle less then 90° , that is
3x + 12 < 90 ( subtract 12 from both sides )
3x < 78 ( divide both sides by 3 )
x < 26
thus any value of x greater than 26 is not possible
so x = 28 is a possible value of x
Please help me answer this question as soon as possible
Answers
The image and preimage coincide when reflecting a figure in a line or a point. Every point of a figure is translated to an image across a fixed line via a reflection. The fixed line is referred to as the reflection line
Explain about line of reflection?An image can be produced by the reflection of a shape along a line of reflection. The mirror line is another name for the reflection line.
Reflections move each shape's points down a line known as the line of reflection (sometimes informally called the mirror line). The distance between a point and its matching point in the image is the same.
Consider the case when the point (6, 7) is reflected across the line y = x. The reflected point's coordinates are (7, 6). Similar to reflections across
y = -x, reflections across y = -x involve not only reversing the order of the coordinates but also their signs. For instance, when reflected over the line y = -x, (8, -2) becomes (2, -8)
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3 How much would a $15.99 book cost if
your state sales tax is 5.65%?
A $18.45
C $20.64
B $16.89
D $16.35
Answers
well, is simply the price plus tax, so
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{5.65\% of 15.99}}{\left( \cfrac{5.65}{100} \right)15.99} ~~ \approx ~~ 0.90~\hfill \underset{total~cost}{\stackrel{15.99~~ + ~~0.90}{\approx\text{\LARGE 16.89}}}[/tex]
(9)
Use the following system of equations.
{9x + 5y = 35
{-2x - 5y = 0
What do you get when you add the 2 equations together?
(10)
Using question 9, what does x equal?
(11)
Using the equation
{9x + 5y = 35
{-2x - 5y = 0
Use your answer or (9) to find what y equals.
What does y equal?
Answers
Step-by-step explanation:
(9)
9x + 5y = 35
-2x - 5y = 0
---------------------
7x 0 = 35
(10)
7x = 35
x = 5
(11)
we pick one of the 2 equations, e.g.
-2x - 5y = 0
-2×5 - 5y = 0
-10 - 5y = 0
-10 = 5y
y = -10/5 = -2
How many solutions are there to the equation below?
7(x+2) = 7x10
A. Infinitely many
B. 1
C. 0
Answers
Answer:C
Step-by-step explanation:
In Exercises 19-22, are AC and DF parallel? Explain
your reasoning.
19.
21.
A
57° B
D
D
123⁰
E
CF
62⁰
A B 62°
E
с
F
20.
22.
A B
D
A
143⁰
D
37°
65°
E
115°
E
с
B C
65°
F
Answers
For the given question, the line AC and DF are found to be parallel lines.
What is defined as the parallel lines?Parallel lines are two or more lines which lie within the same plane but never intersect.
The basic properties listed below make it simple to identify parallel lines.
Parallel lines are defined as straight lines which are everytime the same distance apart.Parallel lines, no matter how far they are extended for either direction, never meet.For the given parts:
Part 19: Line AC || Line DF
57° + ∠B = 180° (linear pair)
∠B = 123°
∠B = 123° (corresponding angles are equal)
Thus, Line AC || Line DF
Part 20: Line AC || Line DF
∠B = 143° (vertically opposite angles)
Then, ∠B + 37° = 143° + 37° = 180° (linear pair)
Thus, Line AC || Line DF
Part 21: Line AC || Line DF
62° + ∠B = 180° (linear pair)
∠B = 118°
And, ∠E = 62° (alternate interior angles)
So, ∠B + ∠E = 118° + 62° = 180° (linear pair)
Thus, Line AC || Line DF
Part 22: Line AC || Line DF
∠B = 180° - 115° = 65°
∠B = 65° (alternate interior angles)
Thus, Line AC || Line DF
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Find the distance between y=1/2x+2 and x-2y=6
Show work and give exact distance
Answers
The distance between these two lines y=1/2x+2 and x-2y=6 is 10/√5
Distance between two lines:
We know that, the parallel lines can be extended till infinity. The slopes of two parallel lines are equal.
Distance d between two parallel lines
y = mx + c1 and
y = mx + c2 is calculated by the
d = |C1–C2|/√(A² + B²)
Given,
Here we have the two line equation they are,
y=1/2x+2 and x-2y=6
And we need to find the distance between them.
To find the distance between the lines, then we ahve to make the equation into standard form, that is,
y = mx + c
Here the first equation is in standard form, so we have to convert the second one,
So, the second equation is written as,
x - 2y = 6
-2y = 6 - x
y = (6 - x)/-2
y = -3 + 1/2 x
y = 1/2 x - 3
Now, we have to derive the value of the following from the given equation, then we get,
Slopes are same m1 = m2 = 1/2 and c1 = 2 ,c2 = -3.
here a = 1/2, b = -1
Now, apply the values on the formula, then we get,
d = |2 - (-3)|/√(1/2)² + (-1)²
d = 5/√1/4 +1
d = 5/√5/4
d = 5/√5/2
d = 10/√5
Therefore, the distance between these two equation is 10/√5.
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What was the percentage decline in profits(to the nearest tenth)?
Answers
The percentage decline in profits (to the nearest tenth) is 7.4%.
The smallest percentage fall in profits as a percentage of sales occurred in the food business between 1966 and 1970.
A percentage is any quantity or ratio that may be expressed as a portion of 100. If we want to calculate a percentage of a number, we should first divide it by 100 before multiplying it by the remainder. The proportion, therefore, denotes a component per 100. The word percent denotes a percentage of 100.
Percentage = (Difference / Total) * 100
According to the question,
Decline percentage = ((2.7-2.5)/2.7)*100
= 7.4%
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HELP PLEASE ON 20-28
Answers
Answer:
See below
Step-by-step explanation:
Yesterday grace sold 18 phones and 21 accessories and made a tot commission of 204 today she sold 6 phone and 15 accessories and made a total commission of 82 determine the price of each accessory
Answers
Answer: by gamelover
commission of each accessory = $2
commission of each phone = $9
Given:
Commission on 18 phones and 21 accessories = $204 commission on 6 phones and 14 accessories = $82.
To find:
the price of each phone and the price of each accessory.
Solution:
let the commission of each phone be P and the accessory be A.
according to the question,
18P + 21A = 204
6P + 7 A = 68 -----i
6P + 14 A = 82 ------ii
by substitution of i in equation ii,
68 - 7A + 14A = 82
7A = 14
A = 2
commission of each accessory = $2
to find the commission on each phone:
6P + 7 x 2 = 68
6P = 54
P= 9
commission of each phone = $9
Hence, the required answers are 2 and 9.
Henry can write 5 pages of his novel in 3 hours.
At this rate, how many pages can Henry write in 8 hours?
pages
Answers
Answer:
13 1/3 pages
Step-by-step explanation:
Unit rate = 5 p / 3 h
5p / 3 h * 8h = 13 1/3 page
I need all of the answers, its like 10 or so?
Answers
The proof that shows that triangles PQR and TSR are similar by AA similarity theorem is explained below.
What is the AA Similarity Theorem?The AA similarity theorem proves that two triangles are similar if we can show that two of its corresponding angles are congruent to each other.
Therefore, for triangles PQR and TSR to be similar by the AA similarity theorem, they must have two corresponding congruent angles.
The proof below shows the triangles, ΔPQR ~ ΔTSR are similar to each other:
Statement Reasons
1. QR ⊥ PT 1. Given
2. ∠QRP and ∠SRT are right angles 2. Def. of perpendicular
3. ∠QRP ≅ ∠SRT 3. All right angles are ≅
4. ∠QPR ≅ ∠STR 4. Given
5. ΔPQR ~ ΔTSR 5. AA similarity theorem
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Which of the following can be used to represent the domain and range of f(x) = |x|? I. Domain: x ∈ ; Range: y ≥ 0 II. Domain: {x|x ∈ }; Range: {y|y ∈ , y ≥ 0} III. Domain: (–∞, ∞ ) ; Range: [0, ∞)
Answers
The domain and range of f(x) = |x| are Domain: (–∞, ∞ ) ; Range: [0, ∞)
f(x) = |x| is the absolute value function.
It always gives non-negative function values.
The absolute value function is defined as,
|x| = { x ; if x ≥ 0
{ -x ; if x < 0
So this definition says that if x is a non-negative real number, then the function gives the non-negative value itself.
Also if x is a negative real number, then -x is a positive real number which is the outcome from the absolute value function for negative real numbers.
This function is defined for all real numbers. Hence the domain is all the real numbers which is (–∞, ∞ ).
But the range of the function are only non-negative real numbers as absolute value function gives only non-negative values. So the range is [0, ∞).
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Write and solve an inequality which can be used to determine xx, the number of visits Liam can make to earn his first free movie ticket.
Answers
The number of visits thay Liam can make to earn his first free movie ticket is 9 visit.
How to calculate the number of visit?Let x represent the number of visits
Since he receives 50 rewards points just for signing up and earns 12.5 points for each visit to the movie theater. This will be illustrated as:
50 + 12.5x >= 160
12.5x >= 160 - 50
12.5x >= 110
Divide
x >= 110/12.5
x >= 8.8
Therefore, he will need at least 9 visit.
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Liam has a points card for a movie theater.
He receives 50 rewards points just for signing up.
He earns 12.5 points for each visit to the movie theater.
He needs at least 160 points for a free movie ticket.
Write and solve an inequality which can be used to determine xx, the number of visits Liam can make to earn his first free movie ticket.