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strojnjashka [21]
3 years ago
13

Given f(x)=5x+15 find f(x)=30

Mathematics
1 answer:
Schach [20]3 years ago
3 0
Given the function, f(x) = 5x + 15:

In order to find the value of x when f(x) = 30, substitute the value of the output into the function:

f(x) = 5x + 15
30 = 5x + 15

Subtract 15 from both sides:
30 - 15 = 5x + 15 - 15

15 = 5x

Divide both sides by 5:
15/5 = 5x/5

x = 3

Therefore, the value of x when f(x) = 30 is 3, or f(3) = 30.
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Answer:

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Step-by-step explanation:

you need to find how many cups of water were used in the game:

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128/16=8(gallons)

hope it'll help! have a good day!

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<h2>Answer: x=-2(-y+4)</h2>

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jarptica [38.1K]
Answer:
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Use the protractor tool to measure the angles in the diagram
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