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15.A wooden fence 6 ft high and 220 ft long is to be painted on both sides.(a) What is the total area to be painted?(b) If one gallon of paint will cover 200 square feet, how many gallons of paint should be purchased?Note that paint must be purchased in whole gallons.

Respuesta :

Ok, we are going to calculate the area of one side, and next we are going to multiplicate by two because the problem says "both sides".

The formula is area of an rectangle: base*height.

[tex]\text{Area}=6\cdot220\text{ = 1320 ft}[/tex]

Multiplying by 2:

[tex]\text{Total Area=1320}\cdot2=2640\text{ ft}[/tex]

The total area to be painted is 2840 ft.