Question

The ratios in an equivalent ratio table are 3:12, 4:16, and 5:20. If the first number in the ratio is 10, what is the second number? Justify your reasoning.
please help

Answer 1

\[3:12 ~for ~example~ is ~3\times4=12\]
So all of those the smallest number is being multiplied by 4
So what do we do to 10? @ValMtz0

Answer 2

yes so 10 x 4

Answer 3

Yes, we multiply 10*4 and we will get 40!
So the last ratio is 10:40 and all of them are proportional.

Answer 4

thank you both so much!