Starting at home, Michael traveled uphill to the gift store for 242424 minutes at just 101010 mph. He then traveled back home along the same path downhill at a speed of 303030 mph. What is his average speed for the entire trip from home to the gift store and back?

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

3

step-by-step explanation:

ιт ιѕ:

125.28

нσρє ι ¢συℓρ нєℓρ