anonymous 900

Julie loves candles and bought many for different prices at a market. She bought 7 at 3 dollars each, 5 at 6 dollars each, 9 and 9 dollars each and 3 at 12 dollars each. In her purse, Julie originally had four 50 dollar notes. Write an equation to show ho...

5:7 is the ratio of boys to girls 5/12 x 36 = 15 boys so if 5/12 = 15 then 7/12 x 36 = 21 girls