Each marble bag sold by Joe's Marble Company contains 5 green marbles for every 3 red marbles. If a bag has 35 green marbles, how many red marbles does it contain?

Answer 1

x/35 = 3/5

x/7 =3

x =21 red marbles

total = 35+21 = 46 red + green marbles when 35 are green and 21 red

35/21 = 5(7)/3(7) = 5/3