Answer:
x = 20
Length = 20ft
Width = 12ft
Step-by-step explanation:
A = 240
x^2 - 8x = 240
x^2 - 8x - 240 = 0
x^2 - 20x + 12x - 240 = 0
x(x-20) + 12(x-20) = 0
(x+12)(x-20) = 0
x = 20
x = -12 (which we discard since x is a length)
So the dimensions are 20ft and 20-8 = 12ft
Answer: The three different equations will be
Step-by-step explanation:
We have to write three equation that have x = 5 as a solution:
1) First equation will be
2) Second equation will be
3) Third equation will be
Hence, the three different equations will be
Answer:
7x - 9
Step-by-step explanation:
1: Multiply the numbers
4 - 3 x 2 + 2x + 5x - 7
4 - 6 + 2x + 5x - 7
2: Add the numbers
4 - 6 + 2x + 5x - 7
-9 + 2x + 5x
3: Combine like terms
-9 + 2x + 5x
-9 + 7x
4: Rearange terms
-9 + 7x
7x - 9
Solution
7x - 9
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N is 7.5 because prq is 3x the size of abc
