Question

To make orange paint, Bryan mixes red paint and yellow paint in the ratio 3 to 2 ( 3:2). If he uses 8.5 gallons of yellow paint, how many gallons of red paint can he use?

Answer 1

red=3 units
yello=2 units
if 8.5=yellow=2 units
find 3 units
8.5=2 units
dividd 2
4.25=1 unit
3 units=4.25 times 3
3 units=12.74

he used 12.75 gallons of red