The distance to small lake is 3/4 the distance to the airport , the distance to the airport is 10 miles what is the distance to small lake ?

7 1/2 miles

Step-by-step explanation:

The distance to the airport is 10 miles

The distance to the lake is 3/4 the distance to the airport

d =3/4 *10

d =30/4 = 7 2/4 = 7 1/2 miles

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

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