Question 467472
boys to girls is 7:10, then
boys to total is 7:17


7 boys / 17 total = x boys / 357 total  {set up a proportion}
17x = 7(357) {cross-multiplied}
17x = 2499 {multiplied 7 by 357}
x = 147 {divided both sides by 17}


B.) 147 boys
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