We could solve for x, but notice that the same expression is being squared in both (x+1)
if (x+1)^2 - 3 = 22 then
(x+1)^2 = 25
that would mean that (x+1)^2 - 5 = 25 - 5 = 20
Answer:
3 cabins takes 6.3 trees
7 cabins takes 14.7 trees
Step-by-step explanation:
divided 10.5 by 5= 2.1 trees per cabin
2.1 x however many cabins your gonna build
Answer: -406
Step-by-step explanation:
We have the following expression:
In addition we know:
and 
If we substitute this in the expresion, we will have:
Answer:
The answer is $690.78
Step-by-step explanation:
Answer:
x = 15.65
y = 3.5
Step-by-step explanation:
Step 1
Find the equation for x and y
Equation for x is given as
x² = 7( 7+28) ..........Equation 1
14(14 + y) = x²........ Equation 2
Solving for Equation 1
x² = 7( 7+28)
x² = 7(35)
x² = 245
x = √245
x = 15.65
From Equation 1 , x² has been determined to be 245
Therefore we substitute 245 for y in Equation 2
14(14 + y) = x²........ Equation 2
14(14 + y) = 245
196 + 14y = 245
14y = 245 - 196
14y = 49
y = 49 ÷ 14
y = 3.5
