To find the amount of paint needed, we need to find the total surface area.
A cube has 6 surfaces.
1 surface = 12 x 12 = 144 ft²
6 surfaces = 144 x 6 = 864 ft²
Find the number of gallons of paint needed:
864 ÷ 450 = 1.92 gallons of paint
------------------------------------------------------------ Answer: He needs to buy 2 gallons of paint. ------------------------------------------------------------
If original program is x hours long we have the equation- x - 0.17x = 1.5 0.83x = 1.5 x = 1.5 / 0.83 = 1.81 hours long ( about 1 hour 49 minutes) Answer