Answer:
-1 1/5
Step-by-step explanation:
-9+7 4/5
BIVA
Systems of Equations Test Review
ACED.2
1.) Jack is seling tickets to a school play. He can sell a maximum of 35 tickets with
childrens tickets being $2 and adult tickets costing $6. Create an inequality which
represents all of the possible variations of tickets that he can sell.
A-CED.3
Answer:
OPEN PHONE
Step-by-step explanation:
bhad m jaaa sun pagal
what is the measure of x?? PLEASE HELP
Answer:
100°
Step-by-step explanation:
180-80=100
ABCD is a parallelogram. If mZCDA = 63, then mZABC = _?_ The diagram is not to scale.
Answer:
b. 63
Step-by-step explanation:
A Parallelogram is known to be a flat shape quadrilateral which has four opposite sides Each two opposite sides are parallel and are equal in length. The opposite angles are equal.
The above answer is correct because opposite angles of a parallelogram are equal:
m∠CDA = m∠ABC
where m∠CDA = 63
∴ m∠ABC = 63 (answer)
The table of values represents a linear function. For this function, what is the value of y when x = 4?
х
-4
0
4
6
y
3
4
?
5.5
y =
Given the table of values that represents a linear function, the value of y when x = 4 is: 5.
Recall:
Equation of a linear function can be modelled as y = mx + b.m = slope; b = y-intercept.slope (m) = change in y / change in xy-intercept (b) is the value of y at x = 0.Find the slope of the linear function, using two pairs of values, (-4, 3) and (0, 4):
Slope (m) = (4 - 3)/(0 - (-4)) = 1/4
y-intercept (b) = 4 (from the table, when x = 0, y = 4).
Write the equation that models the function by substituting m = 1/4 and b = 4 into y = mx + b:
y = 1/4x + 4
Thus, to determine the value of y when x = 4, substitute x = 4 into y = 1/4x + 4:
y = 1/4(4) + 4
y = 1 + 4
y = 5.
Therefore, given the table of values that represents a linear function, the value of y when x = 4 is: 5.
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Move the number that is not next to the variable to the other side of the equation by using the opposite operation Divide by the number next to the variable 8x -1 = -50
Given:
The equation is
[tex]8x-1=-50[/tex]
To find:
The value of x by separating the variable.
Solution:
We have,
[tex]8x-1=-50[/tex]
Here, -1 is not next to the variable. So, move -1 to the other side of the equation by using the opposite operation. After moving -1 to the right side of the equation it will become +1.
[tex]8x=-50+1[/tex]
[tex]8x=-49[/tex]
Divide both sides by 8.
[tex]x=\dfrac{-49}{8}[/tex]
Therefore, the value of x is [tex]\dfrac{-49}{8}[/tex].
Which of the following expressions could be used to find the sale price of an item that costs d dollars if it is on sale for 30% off?
A. 30d
B. 70d
C. 0.3d
D. 0.7d
Answer:
C
Step-by-step explanation:
This is because 30d would be multiplying whatever the cost by 30, however with 0.3d you are taking 0.3 or 30% off of the whole number.
PLEASER HELP!! 40 POINTS
Here is a {copyright} file to the answer
Choose the numbers to complete the statement about the expression. 8/10 + 2/6Part A The numerator in the first fraction is closest to Choose... , so the fraction is nearest to Choose... . Part B The numerator in the second fraction is closest to Choose... , so the fraction is nearest to Choose... . Part C The value of the expression can be estimated as Choose... + Choose... = Choose... .
Answer:
10 and 1 A
3 and one-half B
1 + one-half =1 and one-half C
Step-by-step explanation:
The expression {8/10 + 2/6} is equivalent to 17/15.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is the expression as -
8/10 + 2/6
The given expression is -
8/10 + 2/6
(2 x 4)/(2 x 5) + (2 x 1)/(2 x 3)
4/5 + 1/3
(12 + 5)/15
17/15
Therefore, the expression {8/10 + 2/6} is equivalent to 17/15.
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8,502,000,000,000
in scientific notation
Answer:
are you supposed to do math
how do u this? please explain...
The store price of a t-shirt is $50. if the markup set by the store is 30%. Calculate the markup the price set by the t-shirt.
Answer:
I won't answer but I'll give a hint
Step-by-step explanation:
1. Markup = markup percent x cost/store price
2. Selling price = markup price + cost/store price
3. Discount amount = discount percent x cost/store price
4. Selling price = cost/store price – discount amount
25. Explain the Error Jeremy factored 144x? – 100 as follows:
144x2 100 = (12x + 10)(12x – 10)
= 2(6x + 5)(6x – 5)
What was his error? Correct his work.
Given:
Consider the expression is
[tex]144x^2-100[/tex]
Jeremy factored the given expression and his steps are given.
To find:
The error in his solution.
Solution:
We have,
[tex]144x^2-100[/tex]
It can be written as
[tex]=12^2x^2-10^2[/tex]
[tex]=(12x)^2-10^2[/tex]
[tex]=(12x+10)(12x-10)[/tex] [tex][\because a^2-b^2=(a+b)(a-b)][/tex]
Taking out common factors from each parenthesis.
[tex]=2(6x+5)2(6x-5)[/tex]
[tex]=4(6x+5)(6x-5)[/tex]
So, Jeremy was incorrect because the common factor is [tex]2\times 2=4[/tex] instead of 2.
Therefore, Jeremy made his mistake in his last step.
A cactus casts a shadow that is 15 feet long. A gate nearby casts a shadow that is 5 feet long. Find x, the height of the cactus. in middle school
Answer 15 ft
hope it is helpful
-3x-8>19?I have to solve for x
Answer:
x < -9
Step-by-step explanation:
Add 8 to both sides:
-3x - 8 > 19
-3x > 27
Divide each side by -3:
-3x > 27
Dividing by a negative number on each side switches the inequality:
x < -9
So, the answer is x < -9
Answer:
[tex] \huge \: x < - 9[/tex]
[tex]\huge \: x \in (-∞,-9)[/tex]
Step-by-step explanation:
to understand thisyou need to know about:inequalityPEMDASgiven:[tex]-3x-8>19[/tex]tips and formulas:the direction of inequality doesn't change when you
Add (or subtract) a number from both sidesMultiply (or divide) both sides by a positive numberSimplify a sidethe direction of inequality does change when you
Multiply (or divide) both sides by a negative numberSwapping left and right hand sideslet's solve:[tex]step - 1 : define \\ -3x-8>19[/tex]
[tex]step - 2 : \\ add \: 8 \: to \: both \: sides[/tex]
[tex]-3x-8 + 8>19 + 8[/tex]
[tex] - 3x >27 [/tex]
[tex]step - 3 \: \\ divide \: both \: sides \: by \: - 3 \: and \: swap \: the \: inequality[/tex]
[tex] \huge \therefore \: x < - 9[/tex]
It doesn't need an explanation!
Answer:
The price of each big peach is: $0.45
Step-by-step explanation:
Given that
Total peaches = 270
The ratio of small to medium to big peaches
2:4:3
We can use this ratio to find the number of peaches in each group
First of all we have to find the sum of ratios
That is
2+4+3 = 9
Now
[tex]Small\ peaches = \frac{2}{9} * 270 = 60\\Medium\ peaches = \frac{4}{9}*270 = 120\\Big\ peaches = \frac{3}{9} *270 = 90[/tex]
It is also given that total cost is $91.50
We will have to find the cost of small and medium peaches and then subtract both from the total cost to find the price of big peaches.
So,
Price of one small peach = $0.25
Total cost = 0.25*60 = 15
Price of one medium peach = $0.30
Total cost = 0.30*120 = 36
[tex]Price\ of\ all\ medium\ peaches = Total\ cost-(Cost\ of\ small\ peaches+ Cost\ of\ medium\ peaches)\\= 91.50 - (15+36) \\=91.50-51\\=40.5[/tex]
To find the cost of one big peach, the cost of big peaches will be divided by total number of peaches
So,
[tex]Cost\ of\ one\ peach = \frac{40.5}{90} = 0.45[/tex]
Hence,
The price of each big peach is: $0.45
0.45 cent
Given that
Total peaches = 270
The ratio of small to medium to big peaches.
2:4:3
We can use this ratio to find the number of peaches in each group
First of all we have to find the sum of ratios
That is
2+4+3 = 9
It is also given that total cost is $91.50
We will have to find the cost of small and medium peaches and then subtract both from the total cost to find the price of big peaches.
So,
Price of one small peach = $0.25
Total cost = 0.25*60 = 15
Price of one medium peach = $0.30
Total cost = 0.30*120 = 36
To find the cost of one big peach, the cost of big peaches will be divided by total number of peaches.
So the price of each big peach is: $0.45
Find X. Round to the nearest tenth please help!
Answer:83.0°
Step-by-step explanation:
Given ∆XYZ, with 3 known sides, to find angle X, apply the Law of Cosines, c² = a² + b² - 2ab*cos(C).
For convenience sake, this formula can be rewritten to make the angle we are looking for the subject of the formula.
Thus, we would have this following:
Where,
C = X = ?
a = 8 ft
b = 16 ft
c = 17 ft
-4y + 3x - 2x - 5y - 4
Combining like terms
Answer:
I have
Step-by-step explanation:
No idea sorry
If f(x) =4^x-8 and g(x)=5x+6find (f-g)(x)
Answer:
x= 10
Step-by-step explanation:
27÷6= 4.5
27×4.5= 6
so,
45÷4.5=10
The sphere shown has a radius of 3 yards. What is the approximate volume of the sphere? Use 3.14 to approximate pi.
Answer:
The volume of the sphere is 113.04 yd³
Step-by-step explanation:
This model of the backboard of a basketball goal is composed of a rectangle and a semicircle. What is the area of
the model of the backboard in square inches?
Answer:
deal with the rectangle first A = l X w
4 X 12 = 48 squared cm
semi circle
Area of a circle πr^2
12/2 = 6, radius = 6
π6^2 = 113.097335
113.097335/2 = 56.5486677
56.5 + 48 = 104.5 squared cm
The measure of an angle is 17.3°. What is the measure of its complementary angle?
Answer:
72.7
Step-by-step explanation:
complementary angles: either of two angles whose sum is 90°.
90-17.3 = 72.7
Answer:
Complementary angle of 17.3° is (90°-17.3°)=72.7°
72.7° is the right answer.Please help! It’s so confusing
PLS HELP PLS ITS TIMES ILL GIVEBRAINLIEST IF CORRECT HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!
Answer:
The answer must be C
Step-by-step explanation:
I can explain if you want to, just let me know!
One less than five times a number is fewer
than twenty-four.
Answer:
x < 5
Step-by-step explanation:
[tex]5x - 1 < 24\\5x < 25\\x < 5[/tex]
Answer:
any number under 5
Step-by-step explanation:
5(5) -1 =24
so anything under that would equal fewer than 24
Is this what you're asking?
Mike a local auto mechanic charges a certain amount to diagnose and repair car he bases his price on the amount of time that it takes for the car to be repaired what is the rate of change in the graph.
Answer:
200
Step-by-step explanation:
The time spent repairing the car is five hours while the total cost is about 200 bucks
Find value of x. Leave in simplest radical form
Answer:
blah blah blah blah
Step-by-step explanation:
karma :)
Answer:
[tex]x = 6[/tex]
Step-by-step explanation:
[tex] \sin(45) = \frac{opposite}{hypotenuse} [/tex]
[tex] \sin(45) = \frac{3 \sqrt{2} }{x} [/tex]
[tex](x) \sin(45) = \frac{3 \sqrt{2} }{x} (x)[/tex]
[tex](x) \sin(45) = 3 \sqrt{2} [/tex]
[tex] \frac{(x) \sin(45) }{ \sin(45) } = \frac{3 \sqrt{2} }{ \sin(45) } [/tex]
[tex]x = \frac{3 \sqrt{2} }{ \sin(45) } [/tex]
[tex]x = 6[/tex]
A group of friends wants to go to the amusement park. They have $60 to spend on parking and admission. Parking is $18, and tickets cost $10.50 per person, including tax. How many people can go to the amusement park?
Answer:
4 people
Step-by-step explanation:
plug 18+10.5x into your calculator, or just make a table labelling x and y.
note that x must not exceed $60 but can be equal to or less than $60. x=4 gives you the exact number of people, which is 4.
Write the word sentence as an inequality.
A number z times 3 is at most -4.8
Answer and you’ll get brainliest answer if correct!
Answer:
3z < -4.8
* be sure to use the less than or equal to sign
Step-by-step explanation:
The inequality for the A number z times 3 is at most -4.8 is 3x < -4.8
What is Inequality?Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
Given:
A number z times 3 is at most -4.8
Now, the mathematical expression is
3z < -4.8
and, z< -1.6
Hence, the inequality is 3x < -4.8
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Find the rate of the following:
A. 5 is what percent of 25?
B. 3 is what percent of 12?
C. 1 is what percent of 10?
D. 85 is what percent of 340
E. 7 is what percent of 20?
Zachary ate 88 out of g gumdrops. Choose the expression that shows how many gumdrops Zachary has left.
A. 88-g
B. G+88
C. G
D. G-88
factor z^3 - 2z^2 + 9z-18
10 POINTS!!!!
Answer:
(z - 2) (z^2 + 9)
Step-by-step explanation:
Factor the following:
z^3 - 2 z^2 + 9 z - 18
Hint: | Factor pairs of terms in z^3 - 2 z^2 + 9 z - 18 by grouping.
Factor terms by grouping. z^3 - 2 z^2 + 9 z - 18 = (z^3 - 2 z^2) + (9 z - 18) = z^2 (z - 2) + 9 (z - 2):
z^2 (z - 2) + 9 (z - 2)
Hint: | Factor common terms from z^2 (z - 2) + 9 (z - 2).
Factor z - 2 from z^2 (z - 2) + 9 (z - 2):
Answer: (z - 2) (z^2 + 9)