3 years ago

Find the missing number in the proportion.

Mathematics

1 answer:

Soloha48 [4]3 years ago

8 0

Answer: 7

Step-by-step explanation: Cross multiply, so 15 times x and 21 times 5. 21 times 5 is 105 then you divide by 15 which gives you 7.

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Answer:

624 miles

Step-by-step explanation:

We know that there are 12 months in a year, and you need to find out the total miles she walks in two years, which is 24 months.

So we multiply 26(24)

This is equal to 624 miles

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If f(x)=3x^2+2×=1 find f(x+2)

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you need to replace the x with x+2

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3 years ago

Raoul has to finish a 473-page book in a week. He decides to read the same number of pages each weekday and 30 extra pages on Sa

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$59$ pages

Step-by-step explanation:

Variable:

x = number of pages he has to read on a weekday

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3 years ago

The product of a number and 3 is 87 what is the number

IrinaK [193]

The awnser would be 29

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Answer

denis-greek [22]

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x = 1, y = 3

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Use the y and substitute it into the 2nd equation. Solve for x. Then use that answer to solve for y.

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