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4 years ago

If y=8 when x =3, find y when x=45

Mathematics

1 answer:

KengaRu [80]4 years ago

7 0

Y: x
8:3
y:45
3y=45(8)
y=45(8)/3=120

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Answer:

number of hours Alexander family ‘s sprinkler work = 20

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Step-by-step explanation:

Given in the question,

water output rate for the Alexander family ‘s sprinkler = 40 L

water output rate for the Morgan family ‘s sprinkler = 20 L

Suppose, number of hours Alexander family ‘s sprinkler work = x

Suppose, number of hours Morgan family ‘s sprinkler work = y

Equation1

x + y = 50

Equation 2

40x + 20y = 1400

x = 50 - y

Put this value of x in equation 2

40(50-y) + 20y = 1400

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3 years ago

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0.1257 is a terminating decimap

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3 years ago

Please help and thank you

tatiyna

Answer:

$b_{1}=\frac{2A}{h}-b_{2}$

Step-by-step explanation:

Given: $A=\frac{1}{2}(b_{1} +b_{2})h$

We need to completely isolate $b_{1}$ to solve.

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3 years ago

Read 2 more answers

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3 years ago

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