We can start this equation off by doing the inverse operation for each sides. We add 9 to both sides in order to get rid of the -9 term to get:
[tex]-11x = 77[/tex]
We now divide both sides by -11 in order to "isolate" our x variable to get:
[tex]x = -7[/tex]
Answer:
x=-7
Step-by-step explanation:
-11x=68+9
-11x=77
divide both sides by -11
x=-7
Middle school students were asked how they got to school each morning. There were 120 students who said
they walked to school. This number represents 30% of the school enrollment. How many students are
enrolled?
Answer: 400
Step-by-step explanation:
n = 400
if we choose n as the number, we write are able to write an equation, or number problem.
30% of n = 120
now solve.
first we need to convert 30% to fraction form, which is 30/100.
the reciprocal of 30/100 is 100/30. now multiply 120 by 100/30
(120 x 100) / 30 = 400!
Thomas has constant speeds for both running and walking. When a down-escalator is moving, Thomas can run down it in
15
seconds or walk down it in
30
seconds. One day, when the escalator was broken (and stationary), it took Thomas
20
seconds to run down it.
How long, in seconds, would it take Thomas to walk down the broken escalator?
I got 40
since 15x2=30
so then 20x2= 40
What’s the X coordinate of the vertex
Step-by-step explanation:
f(x) = (x + 3)(x - 5)
In a Quadratic curve, the x-coordinate of the vertex is equidistant to the x-intercepts. (If they exist)
In f(x), our x-intercept are x = -3 and x = 5.
=> (-3 + 5)/2 = 1.
Hence the x-value of the vertex is 1.
please help for gods sake:(
Answer:
answer is b)
Step-by-step explanation:
please mark me brainliest
Answer:
The answer is B
Step-by-step explanation:
Mark me
Urgent Math Help Needed!
A parabola has a line of symmetry x = -5. The minimum value of the quadratic function that it represents is -7. Find a possible equation of this parabola and explain how you found it.
I bought a new shirt last night that costs 46$. Becasue there was a little stain on it they gave me an 8% discount. How much did i
pay for the shirt
answer: $42.32
8% = 0.08
0.08 x 46 = 3.68
46 - 3.68 = 42.32
3. Anya budgets $194 for commuting to
work each month. She buys a monthly
bus pass for $68 and spends $6 each
time she buys lunch. Which inequality
describes the number of days, d, that
Anya can afford to buy lunch?
A 194 > 6d + 68
B 194 > 6d – 68
194 < 60 – 68
D 194 < 6d + 68
Answer:
c
Step-by-step explanation:
Joshua saves £12 a week in a saving account. How much will he save in one year?
Answer:
£624
52 weeks in a year 52 x 12
How many cubic meters of water are required to fill a rectangular swimming pool 15m long and 10 m wide which is 2m deep throughout.How many liters is that?
Answer:
300,000 liters
Step-by-step explanation:
Let us have the measurements in cm
100 cm = 1 m
so the measurements are multiplied by 100
we have this as;
1500 by 1000 by 200
The volume is the product of the 3
This is :
1500 * 1000 * 200 = 300,000,000 cm^3
Mathematically, 1 liter = 1000 cm^3
300,000,000 cm^3 will be ;
300,000,000/1000 = 300,000 liters
5 (y + 6) + 2y < 4 (y+2) - 5
Answer:
I think the answer is Y < -9
Answer:
i think the answer is 7y + 30 < 4y + 3
Mae has a number cube with 6 sides that are numbered 1 through 6. What is the probability that Mae will roll an odd number?
A
1 out of 3
B
1 out of 6
с
3 out of 6
D
5 out of 6
Answer:
C) [tex]P(E) = \frac{3}{6}[/tex]
The probability that Mae will roll an odd number
[tex]P(E) = \frac{3}{6}[/tex]
Step-by-step explanation:
Step(i):-
Given that Mae has a number cube with 6 sides that are numbered 1 through 6.
n(S) = { 1,2,3,4,5,6,} = 6
Let 'E ' be the event of odd numbers
Mae will roll an odd number
n(E) = {1, 3, 5} = 3
Step(ii):-
The probability that Mae will roll an odd number
[tex]P(E) = \frac{n(E)}{n(S)} = \frac{3}{6}[/tex]
[tex]P(E) = \frac{3}{6}[/tex]
equation for horizontal line at 0,-7
(x+15)/(3z-y) if x=5 z=4 y=2
Find the area and perimeter show work stuck on this plz help
Answer:
Area = 36
Perimeter = 26
Step-by-step explanation:
Area = (4*2)+(7*4) = 8+28 = 36
Perimeter = 6+4+2+3+(6-2)+(3+4) = 10+5+4+7 = 15+11 = 26
Answer:
Perimeter: 26
Area: 36
Step-by-step explanation:
Perimeter:
6 + 4 + 2 + 3 + 4 + 7
10 + 5 + 11
15 + 11
26
Area:
(6 x 4) + (3 x 4)
24 + 12
36
What is the y-intercept of the line y – 14 = 6(x – 2.5)?
Answer:
Slope = 12.000/2.000 = 6.000
x-intercept = 1/6 = 0.16667
y-intercept = -1/1 = -1.00000
Step-by-step explanation:
ill give brainiest and 30 points
Answer:
50 feet
Step-by-step explanation:
According to the Pythagorean theorem a^2+b^2=c^2 and if you put it into this equation it is 30^2 + 40^2 =50^2 which does work out
I dont feel like typeing right now (its 50 )So here's my answer.
In 2009, Jennifer made $11.50 an hour, and in 2010, she made $12.75 an hour. What is the percent of change in Jennifer’s pay per hour from 2009 to 2010?
Show your work
(explain step by step)
Answer:
10.87%Step-by-step explanation:
Change in pay:
12.75 - 11.50 = 1.25Percent of change:
1.25/11.50*100% = 10.87% (rounded)Michelle is scuba diving. Her position changes from -2.1m to -38.6m in 6 1/4 min. What is the average change in Michelle's position each minute?
Answer: 5.824 m / min
Step-by-step explanation:
Change in position = -2.1m to -38.6m
Distance = |-38.6 m - (-2.1m) |
=|-36.5| m
= 36.5 m
Time = [tex]6\dfrac14\ min=\dfrac{6\times4+1}{4}\ min[/tex]
[tex]=\dfrac{25}{4}\ min[/tex]
The average change in Michelle's position each minute = [tex]\dfrac{36.5}{\dfrac{25}{4}}\text{ m/min}[/tex]
[tex]=\dfrac{36.4\times4}{25}\text{ m/min}\\\\= 5.824\text{ m/min}[/tex]
Hence, the average change in Michelle's position each minute = 5.824 m / min
Alma wrote a phone app. She has noticed that 3\%3%3, percent of the users who download her app upgrade it the same day. Let NNN be the number of customers who download Alma's app until one upgrades it on the same day. Assume that the probability of each user's upgrades are independent. What type of variable is NNN?
Answer:
Geometric
Step-by-step explanation:
A geometric setting does not have a set number of trials, and the variable in question is the number of trials it takes to get the first success.
The upgrades are independent, and the probability of the customer upgrading is the same each time.
The type of variable NNN is Geometric
How to find how much percent 'a' is of 'b'?Suppose a number is 'a'
Suppose another number is 'b'
We want to know how much percent of 'b' is 'a'.
We are given that Alma wrote a phone app. She has noticed that 3%, percent of the users who download her app upgrade it the same day.
Let N be the number of customers who download Alma's app until one upgrades it on the same day.
A geometric does not have a set number of trials, and the variable in question is the number of trials it takes to get the first success.
The upgrades are independent, and the probability of the customer upgrading is the same every time.
Learn more about percent here:
https://brainly.com/question/11549320
#SPJ2
which rectangular prism has a volume of 48 cubic feet?
Answer:
the long one hehe haha
Step-by-step explanation:
I did math
Write an equation in point-slope form of the line that passes through (-1, – 4) with slope -2.
y-
(X
This car dealership pays the salesperson a bonus for selling the car equal to 6.5% of the sale price. How much commission did the salesperson lose when they decided to offer a 10% discount on the price of the car? Show your work.
Answer: 1%
Step-by-step explanation:
Let x be the sale price.
Commission = 6.5% of x = 0.065x (Before discount)
Discount amount = 10% of x = 0.1x
Final sales price = x- 0.1x = 0.9x
Commission after discount = 6.5% of (0.9x)
= 0.065 (0.9x)
= 0.0585x
Loss = ( Commission before discount ) - (Commission after discount )
= 0.065x - 0.0585x
= 0.0065x
Loss percent = [tex]\dfrac{0.0065}{0.65}\times100=1\%[/tex]
Hence, the salesperson lose 1% when they decided to offer a 10% discount on the price of the car.
The sales person lost a commission of 10%.
Let's assume that the price of the car is 1000. The commission the salesperson earns is $65(0.065 x 1000). The price of the car after the 10% discount is $900 (0.9 x 1000). The commission the salesperson earns on the discounted car is $58.5(0.065 x $900). The commission lost = (58.5 / 65) - 1 = 10%To learn more about how to calculate discounts, please check: https://brainly.com/question/9350849
I need help ASAP please please
Answer:
[tex]\frac{x}{2}[/tex] - 14
Step-by-step explanation:
the figure below is made of two triangular prisms. what is the volume of the figure
Answer:
896 cubic inches
Step-by-step explanation:
V (Δ prism) = 1/2 · height · base · length
V (top prism) = 1/2(6)(12)(14)
V (top prism) = 504 in³
V (bottom prism) = 1/2(7)(8)(14)
V (bottom prism) = 392 in³
504 + 392 = 896
WILL GIVE BRAINLIEST
Answer: A
Step-by-step explanation: T is the variable for temp.
and since its asking for an equality at needs to be greater than or equal to 100f
A store sells a pound of bananas for $0.40 and a pound of cabbage for $0.56. Can you buy more pounds of bananas or cabbage with $7? How many more pounds?
Answer:
The bananas will cost $1.38.
Step-by-step explanation:
Explanation:
Multiply the number of pounds by the price per pound.
2.51lb×$0.55lb=$1.38
are there any maths genius here can help?
Answer:
1 》let equal side be X and other side y
now, length of y= 2x sin teta/2
=12.3×sin42/2
=12.3 × sin21
=4.407
Oscar charges $25 for the first hour of tutoring and $15 for each additional hour or fraction of an hour. The rates that Latoya charges for x hours of tutoring are modeled with the function shown.
Who will charge more for 5.5 hours, Oscar or Latoya? How much more?
Who?
How much more?
Answer:
Layota
$47.5
Step-by-step explanation:
Let number of hours = x
Given that:
Oscar's charges :
First hour = $25
Additional hours = $15
Thus :
Total charge : 25 + 15(x - 1)
The piece wise equation given for Layota's charge rate :
First 3 hours = $30
Next 3 hours = $20
Hours greater Than 6 = $10
If total hours ; x = 5.5 hours
Oscar :
$25 + $15(5.5 - 1)
$25 + $15(4.5)
$25 + $67.5
= $92.5
Layota:
First 3 hours :
$30 * 3 = $90
Hours left :
$20 * (5.5 - 3)
$20 * 2.5 = 50
Total = $90 + $50 = $140
Layota charges more : 140 > 92.5
Difference :
$140 - $92.5
= $47.5
The table shows data for the number of people using a swimming pool over 8 days in summer, and the corresponding
maximum temperature (in degrees Celsius) on each day:
A. Find the equation of the line of best fit for the data. Round decimals to the nearest tenth.
B. Can a set of data have more than one line of best fit? Why or why not?
Answer:
Im working on this in usatestprep as we speak. Did you ever get the answer?
The zeros for f(x) = x4 – 3x3 – 4x2 + 12x
are
A. (0,2,3)
B. (0, +2,3)
C. (0,2-3)
D. (0, 2, +3)
Answer: A
Step-by-step explanation: I got 0,-2,2,3