What is an equivalent ratio to 7:5A 14:12B 21:10C 21:15PLZ help me

2 answers:

4 0

Look at all the options.

Let's look at the 5 in the ratio. A number of an answer choice has to be divisible by 5. We can already say A isn't the right answer, because we can't multiply 5 to 12.

All the 7 factors are equal to 21.

7*3= 21

So, shouldn't we multiply by 3 for the 5 as well?

3*5= 15

The correct answer is 21:15 or "C".

I hope this helps!

Paha777 [63]3 years ago

3 0

The correct answer is C, since 7:5*3 is 21:15.

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