Question

There are 80 marbles in a bag. If 28 of the marbles are red what percent of the marbles in the bag are red?


This is working with proportions

Answer 1

Right...what percent (out of 100) are red...

there are 28 red out of 80 marbles

so

\[\frac{ 28 }{ 80 } = \frac{ x }{ 100 }\]

can you solve for 'x'...?

Answer 2

35%

Answer 3

Thx

Answer 4

no problem!