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3 years ago

Please help me, I need to get a good score on this test so bad.

1 answer:

3 0

1. (100 - 25) / 100...x 100
75/100 = 0.75....x 100 = 75% decrease

2. (66 - 45) / 66....x 100
21/66 = 0.318...x 100 = 31.8% increase

3. 36,000(1.05) = $ 37,800

4. 64(1.25) = 80

5. having trouble with this...what is the tax rate ? 75%...or 7.5%

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An unknown number y is 12 more than an unknown number x. The number y is also x less than 17. The equations to find x and y are

grandymaker [24]

Answer:

d because then you can solve for y then use your answer to find x

4 0

2 years ago

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Ava is buying paint from Amazon. Ava

irina [24]

Answer:

2.625 cups or 21 ounces

Step-by-step explanation:

Ava needs 3/4 cup of blue paint for every 1 cup of white paint. So, the ratio is 0.75 : 1.

She has 28 ounces of white paint. But, you have to convert ounces to cups.

1 cup = 8 ounces

28 ounces ÷ 8 ounces/cup = 3.5 cups

Now set up a ratio.

$\frac{0.75}{1} = \frac{x}{3.5}$

X (how much blue paint is needed) is over 3.5 cups (the amount of white paint she has)

Cross multiply and divide.

$\frac{0.75}{1} = \frac{x}{3.5}$

x = 0.75 × 3.5

x = 2.625 cups

To convert to ounces, multiply by 8.

2.625 cups × 8 ounces = 21 ounces

Therefore, Ava needs 2.625 cups or 21 ounces of blue paint.

Hope that helps.

5 0

3 years ago

Under which president's administration were thousands of African Americans fired from civil service position?

Strike441 [17]

Both Theodore Roosevelt & Woodrow Wilson.

4 0

3 years ago

Write a definite integral that represents the area of the region. (Do not evaluate the integral.)

joja [24]

Answer:

$\int_{-1}^{1}7(x^{3}-x)\:dx$

Step-by-step explanation:

1) The other curve is $y=0$ then the common points of both curves are x-intercepts, the roots of $y=7(x^{3}-x)$

$y=7(x^{3}-x)\Rightarrow 7(x^3-x)=0 \Rightarrow 7(x^{3}-x)=7x(x-1)(x-1)\Rightarrow \\S=\left ( 0,0 \right ),\left ( -1,0 \right ),\left ( 1,0 \right )$

2). Then those intersection points are the upper and the lower limits. Plugging in to this formula for they belong to the interval [-1,1]:

$\int_{a}^{b}|f(x)-g(x)dx$

$\int_{a}^{b}|f(x)-g(x)dx \Rightarrow \int_{-1}^{1}|7(x^{3}-x)-0|dx \Rightarrow \int_{-1}^{1}7(x^{3}-x)\:dx$

8 0

3 years ago

What is the area of this figure? A.49.5 in² B.66.5 in² C.84 in² D.91 in²

aliya0001 [1]

The area of a trapezoid with base lengths 7 in and 19 in is given by
A = (1/2)(b1 + b2)h
A = (1/2)(7 +19)·7 = 91

The appropriate choice is
D. 91 in²

_____
It can also be figured by adding the area of the 7 in square (49 in²) to the area of the 7×12 in right triangle (42 in²).

3 0

2 years ago

Read 2 more answers