Answer:
The length of one side of the hot tub is 4.8ft
Step-by-step explanation:
Given
Shape: Square
-- scale factor
Required
Side length of ABCD (the hot tub)
From the question, we understand that
ABCD dilated by 5 to A'B'C'D
This implies that:
i.e. the sides of ABCD is multiplied by 5 to get A'B'C'D
So, we have:
Divide by 5
Let's say each row has x desks and there are y rows.
We then know that x*y =25
We also know that x*2-5=y (number number of rows is five less than twice the number of desks in each row)
So we substitute: x*(x*2-5)=25
putting numbers out of the brackets:
2x*x-5x=25
2x*x-5x-25=0
(2x+5)(x-5)=0 (this bracketing is true: you can check it by expanding it:
2x*x-10x+5x-25
So that means that either x=-2.5which can't be : there can't be a fractional number of benches,
or x=5
so each row has 5 desks and there are 2*5-5 rows, or 5 rows.
Rounded it is 11.7 cubic cm.
Answer:
What is 2x + 5 (y-1) when x=8 and y=5
Step-by-step explanation:
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