width of a rectangle is 2:5. If the rectangle has a perimeter of 98 inches, what is the area of the rectangle
1 answer:
W:l = 2:5 5w = 2l...........(a) P = 2*(l + w) = 98 2l + 2w = 98 From (a) 2l = 5w 5w + 2w = 98. 7w = 98 w = 98/7 w = 14 2l = 5w 2l = 5*14 l = 5*14/2 = 70/2 = 35 l = 35. Area = l * w = 35 * 14 = 490 inches²
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