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Otrada [13]
2 years ago
12

Juan has 20 books to sell. He sells the books for $15 each. The amount of money Juan makes from selling x books is represented b

y the function.
F(x)=15x
What is the practical range of the function?
A. All integers from 0 to 20, inclusive.
B. All multiples of 15 between 0 and 300, inclusive.
C. All real numbers.
D. All multiples of 20 between 0 to 300, inclusive.
Mathematics
2 answers:
Kobotan [32]2 years ago
6 0
The range is all the y values....or the f(x) values

so the practical range would be the multiples of 15 between 0 and 300
adelina 88 [10]2 years ago
6 0
Well you would multiply 20x15 to find out the highest of the range which is 300. So that knocks it down to B or D. but since they're $15 each, it would be based of the multiples of 15 making your answer B.
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Step-by-step explanation:

<u>Step 1: Find how much raisins are needed</u>

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<em>Cross multiply</em>

4.5y = 1.5 x 18

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<u>Step 2: Find how much granola is needed</u>

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4.5 : 1

18 : y

<em>Cross multiply</em>

4.5y = 18

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<u>Step 3: Find how much blueberries are needed</u>

<em>For 4.5 cups of fruity granola, we need 2 cups of raisins</em>

<em>For 18 cups of fruity granola, we need y cups of blueberries</em>

4.5 : 2

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<em>Cross multiply</em>

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Step-by-step explanation:

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