Question

translate each problem into an equation.
the legnth of a rectangle is one unit more than its width. if the area is 30 square units, find the dimensions of the rectangle.

Answer 1

L = 1+W
L x W = 30
W(1+W)=30
W^2 + W-30 = 0
(W-5)(W+6) = 0
W = 5 (width cannot be negative)
L = 1+W = 1+5 = 6

Answer 2

thanks..could you help me with this one.. a triangle has two equal sides and a third side that is 15cm long. if the perimeter is 50 cm, how long is each of the two equal sides

Answer 3

a + b + c = P
a=b --> a + a + 15 = 50
2a= 35
a = 17.5 --> b = 17.5

Answer 4

thanks!