Answer:
Step-by-step explanation:
the area of Clark's yard = 60 * 40 = 2400 square feet
the area of the flower bed in his area = 4 * 20 = 80 square feet
the area to be fertilized = 2400 - 80 = 2320 square feet
∵the two yards are proportional
∴[tex]\frac{L1}{W1}=\frac{L2}{W1}[/tex] where L1 and W1 are the length and width of clark's yard and L2 and W2 are his neighbor's yard
[tex]\frac{60}{40} =\frac{L2}{50}[/tex]
L2 = 75 feet
the area of his neighbors yard = 75 * 50 = 3750 square feet
the area of flower bed = 5 * 30 = 150 square feet
area to be fertilized = 3600 square feet
the area that will remain unfertilized = 5920 - 3000 = 2920 square feet
