A rectangle is 12 feet long and 5 feet wide. If the length of the rectangle is increased by 25% and the width is decreased by 20%, what is the change in the area of the rectangle? The change in the area of the rectangle is

no change in area

Step-by-step explanation:

The original area is

A = 12*5 = 60 ft^2

The new length and width

l = 12 + .25 (12) = 12+3 =15

w = 5 - .2 (5) =5-1 = 4

The new area is

A = l*w =15*4 = 60 ft^2

The area is the same

new area is 90 / 50 % increase /

Step-by-step explanation:

12x1.25x5x1.20=90

90-60 = 30

new increase is 30

12*1.25 * 5*1.20 = (12*5)(1.25 * 1.20) = (12*5)(1.50)

50% increase

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.