This table shows equivalent ratios. what are the values of a and b? a = 5, b = 20a = 6 , b = 12a = 8 , b = 12a = 6 , b = 15table x y 0.5 0.4 2 1.6 a 4.8 12 9.6 15 b

ANSWER


EXPLANATION

Since the table represents an equivalent ratio, the ratio x:y is the same for all.

This implies that,



We change all the ratios to fractions to obtain,



We multiply both sides by 4.8 to get,







Similarly,



We change the ratios to fractions to obtain,



This implies that,



We cross multiply to get,



We divide both sides by 5 to get,


or

There is 240 red cars and there is 400 blue cars because 240/3=80 and 80*5=400