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3 years ago

Sandy had 150 dollars to spend on 9 books. After buying them she had 15 dollara. How much did each book cost?

Mathematics

2 answers:

Ket [755]3 years ago

7 0

150-15 =135
135/9= 15 for each book

Musya8 [376]3 years ago

6 0

This is very simple first you subtract 15 from 150 to get 135 then you divide by 9 to get your ansure of 15

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Which of the following is the quotient of the rational expressions shown here? x/x-1 / 1/x 1.

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The quotient of the rational expressions is $\rm \dfrac{x^2-x}{x-1}$ .

<h3>Given that</h3>

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7 0

3 years ago

Need help ASAP!!!!!

svetlana [45]

Answer:

cos 45 degree = A/H

cos 45 degree = 2 square root 2 / x

x = 2 square root 2 / cos 45 degree

x = 4

Sin 45 degree = O/H

Sin 45 degree = y/ 4

4 x Sin 45 degree = y

y = 2.83

we could use tan

tan 45 degree = O/A

tan 45 degree = y / 2 square root 2

2 square root 2 x tan 45 degree = y

y = 2.83

i hope this would elp a little bit.

3 0

3 years ago