3 years ago

Each of these is a pair of equivalent ratios for each pair explain why they are equivalent A: 4:5 and 8:10

Mathematics

1 answer:

alisha [4.7K]3 years ago

5 0

They are equivalent because 4:5 can both be multiplied by 2 making 8:10.

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1. How many solitions does this equation have -4(5-3x)=12x+20

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Answer:

1. no solutions

2. one solution

Step-by-step explanation:

1. -4(5-3x)=12x+20

-20+12x=12x+20

-40+12x=12x

-40=0?????

So no solutions.

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3x+7x+7=12x+10+2

10x+7=12x+12

-2x+7=12

-2x=5

x=-5/2

So one solution.

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