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NemiM [27]
3 years ago
8

Find the value of n in each of the following proportions.

Mathematics
1 answer:
Setler79 [48]3 years ago
7 0

Answer:

24

Step-by-step explanation:

18/n = 21/28                    You can cancel, but calculators make that unnecessary.   Cross multiply

21n = 18 * 28

21n = 504                         Divide by 21

n = 504 / 21

n = 24

==================

12/16 = n / 64                    Cross Multiply

16n = 12 * 64

16n = 768                         Divide by 16

n = 768/16

n = 48

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Answer:

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Step-by-step explanation:

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also i got it right on edge :P

4 0
3 years ago
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A rectangular area is to be fenced in with 300 feet of chicken wire. find the maximum area that can be enclosed.
GarryVolchara [31]
Let the lengths of the sides of the rectangle be x and y. Then A(Area) = xy and 2(x+y)=300. You can use substitution to make one equation that gives A in terms of either x or y instead of both.

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x+y = 150
y = 150-x

A=x(150-x) <--(substitution)

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0=x(150-x)
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6 0
3 years ago
I need help on this
Ipatiy [6.2K]

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5 0
3 years ago
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Answer:

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3 years ago
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