Answer:
Length = 25feets
Step-by-step explanation:
Let the length l = x
Width w = x - 10
Perimeter = 80
And Perimeter = 2(l + w)
:- 80 = 2{x + (x - 10)}
80 = 2{x + x - 10}
80 = 2(2x - 10)
80 = 4x - 20
4x = 80 + 20
4x = 100
x = 100/4
x = 25ft
Answer:
Pretty sure its Quadratic
Step-by-step explanation:
Linear, needs to be in a straight line.
Quadratic, involving the second and no higher power of an unknown quantity or variable.
Exponential, (of an increase) becoming more and more rapid.
Answer: 84%
Step-by-step explanation:
1. Since 25 is the output value, we can assume that it is 100%
2. Now we out what we want to find with x
3. From step one, 25=100%
4. In the same line, x%=21
5. This gives us 2 equations:
100%=25(1)
x%=21(2)
6. By dividing equation 1 by equation 2 and taking note of the fact that both the left hand side of both equations have the same unit (%); we have (set up a proportion)
7. Then, take the reciprocal and solve. You should end up with x=84%
Answer:
0.84
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