Your answer is A because you have to reverse operations to help you find your answer. Typically, you will subtract 19 from 65 to find your answer, but since you are looking for an equation too, you need to reverse your operations and do an equation with addition. In the end, you still need to subtract in order to find your variable's amount. So...your answer is A
Let width = x
Let length = 2x + 11
Area = 63 ft2
length × width = Area
x(2x + 11) = 63
2x2 + 11x = 63
Subtract 63 on both sides of equation.
2x2 + 11x - 63 = 0
Factor the left side of equation.
(2x - 7)(x + 9) = 0
x = 7/2 and x = -9
Since the dimensions cannot be negative, we accept the positive value of x: x=7/2. Substitute this value of x into the dimensions
width = 3.5 ft
length = 2(3.5) + 11 = 7 + 11 = 18 ft
C.) 5 is the value of X and the value of Y is 5/2
Answer:
6
Step-by-step explanation: