2 years ago

HELP ASAP!

Mathematics

1 answer:

Arturiano [62]2 years ago

5 0

Answer:

Step-by-step explanation:

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Rewrite 2/5 : 1/20 as a unit rate. A. 8:1 B. 40:5 C. 5:40 D. 40:1

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Answer:

A - 8:1

Step-by-step explanation:

2/5:1/20

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40:5

8:1

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OlgaM077 [116]

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3 years ago

Which system of equation should you use to solve this problem

Alex17521 [72]

Last option is the correct answer.

Step-by-step explanation:

Given that

Let x stand for the solution a and y stand for the solution B

So,

According to statement that

30 gallons have to be made

$x+y=30$

Solution A contains 29 percent bromine => 0.29x

Solution B contains 53 percent =>0.53y

And the mixture of 30 gallons contains 45% bromine

$0.29x+0.53y=30*0.45\\0.29x+0.53y=13.5$

Following equations will be used for solving the problem

$x+y = 30\\0.29x+0.53y=13.5$

Hence,

Last option is the correct answer.

Keywords: Equations, Variables

Learn more about linear equations at:

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