o=nickel
O=quarter
O O O O O O O O O O + o o o =2.65
(2.50+.15=2.65)
there are 10 quarters total, and 3 nickels
J = 16 solve for j by simplifying both sides of the equation, then isolating the variable
1/2 IS the same as 0.5. Ratio is fairly easy. an example is 5/6. The ratio would be 5:6. Therefore 1/2 in ratio would be 1:2