Question

In art class students are mixing black and white paint to make gray paint. Josue

mixes 4 cups of black paint and 1 cup of white paint. Emily mixes 13 cups of black
paint and 3 cups of white paint. Use Josue and Emily's percent of white paint to
determine whose gray paint will be lighter.
Josue percent of white paint (to nearest whole number) =
Emily percent of white paint (to nearest whole number) =
acer
%
%

Answer 1

Josues ratio of white to black paint is 1:4 meaning that 1/5 or 20% of his grey paint is white.

Emily’s ratio of white to black paint is 3:13 meaning 3/16 or 19% of her paint is white.

20%>19%

Josues paint contains more white, so it’s lighter.