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3 years ago

9

Casey rented a college astronomy textbook from an online bookstore. The 6-month rental fee for the textbook was $85. There was a

12% markup for shipping and handling. What was the total cost of the rental after the markup was applied

1 answer:

Free_Kalibri [48]3 years ago

3 0

Answer: $95.20

Step-by-step explanation:

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-2x - 5y = 13 2x - 5y =17

Flura [38]

{-2x-5y=13

<u>{2x-5y=17 </u>(+)

<em /> -2x+2x-5y-5y=13+17

-10y=30 /:(-10)

y=-3

2x-5y=17

2x-5*(-3)=17

2x+15=17

2x=2

x=1

<em>Solution: (1; -3)</em>

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2 years ago

If there os 150 capacity and 36 os used what os the remaining percentage

Veseljchak [2.6K]

150 - 36 = 114 os remaining;
114/150 = 0,76 (as a decimal) = 76% (as a percentage);

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2 years ago

How do you use proportions to solve percent problems

exis [7]

Answer:

Step-by-step explanation:

EXAMPLE #1:

What number is 75% of 4? (or Find 75% of 4.)

The PERCENT always goes over 100.

(It's a part of the whole 100%.)

4 appears with the word of:

It's the WHOLE and goes on the bottom.

A proportion showing one fraction with PART as the numerator and 4 as the denominator equal to another fraction with 75 as the numerator and 100 as the denominator.

We're trying to find the missing PART (on the top).

In a proportion the cross-products are equal: So 4 times 75 is equal to 100 times the PART.

The missing PART equals 4 times 75 divided by 100.

(Multiply the two opposite corners with numbers; then divide by the other number.)

4 times 75 = 100 times the part

300 = 100 times the part

300/100 = 100/100 times the part

3 = the part

A proportion showing the denominator, 4, times the diagonally opposite 75; divided by 100.

7 0

2 years ago

Gino's Garden is a rectangle with a length of 12 feet. the area of the garden is 108 square feet. what is the width of Gina's Ga

Zielflug [23.3K]

The answer would be 6 feet I believe.

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3 years ago

Read 2 more answers

If f(x) = x-1/3 and g(x)= 3x+1, what is (f o g)(x)?

N76 [4]

Answer:

$(f o g)(x) = 3x + \frac{2}{3}$

Step-by-step explanation:

We have the function $f(x) = x-\frac{1}{3}$ and we have the function $g(x) = 3x + 1$ . We want to find g(x) composed with f(x)

Then, the function (f o g)(x) is the same since f(g(x))

That is, you must do x = g(x) and then enter g(x) into the function f(x).

$f(g(x)) = (g(x)) -\frac{1}{3}$

$f(g(x)) = (3x + 1) -\frac{1}{3}$

Simplifying, we obtain:

$(f o g)(x) = 3x + 1 -\frac{1}{3}\\\\(f o g)(x) = 3x + \frac{2}{3}$

Finally. The composite function is:

$(f o g)(x) = 3x + \frac{2}{3}$

6 0

3 years ago