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makvit [3.9K]
3 years ago
10

Please help PLEASEEEEEEEEE ​

Mathematics
1 answer:
siniylev [52]3 years ago
4 0

Answer:

15

Step-by-step explanation:

You know that it takes 3 mins for 45 sit-ups so then you wanna find how much for 1 minute. It shows 3 mins which is 3 times as much as 1 minute. There, 3/3 = 1. then you have to do it with the sit-ups too. so 45/3 = 15

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Sladkaya [172]

Answer:  B. 9/25

Work Shown:

x% = x/100

36% = 36/100

36% = (9*4)/(25*4)

36% = 9/25

Using your calculator, you should find that 9/25 = 0.36 which converts to 36%, so that helps confirm the answer.

6 0
3 years ago
If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1, find (f+g)(x)
kirill [66]

Answer:

(f+g)(x)= 2x²+2x-2

Step-by-step explanation:

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Hope this helps! :)
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3 years ago
Write a system of equations to describe the situation below, solve using any method, and fill in the blanks.
olasank [31]

Answer:

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Step-by-step explanation:

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What does this mean
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Step-by-step explanation:

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