Answer:
Calvin will paint the entire area in 92 minutes or 1 hour 32 minutes.
Step-by-step explanation:
First of all we know that the total surface are that Calvin is painting is 115 square feet.
The rate at which Calvin is painting refers to the surface area he covers every 2 minutes. This is 2.5 square feet every 2 minutes.
we can set up a relation to solve this problem
If Calvin paints 
in 2 minutes
He will paint 
in 
minutes
By cross multiplying, we have 
Hence Calvin will paint the entire area in 92 minutes or 1 hour 32 minutes.
Answer: one of ten or one over two
Step-by-step explanation:
Answer:
5/2
Step-by-step explanation:
The formula for slope can defined as y2-y1/x2-x1. So we'll take 17.5-7.5 which is 10. 7-3 is 4. Now we have 10/4. This can be simplified to 5/2.
Answer:
Step-by-step explanation:
We have been given an expression 
. We are asked to find equivalent expression to our given expression.
Using distributive property 
, we will get:
Therefore, the expression is equivalent to our given expression.
Answer:
The percentage of the change from 6 to 3 is a 50% decrease.
Step-by-step explanation:
Given the number '6'.
If the number changes from '6' to '3', means the number reduces to half.
as 6/2 = 3
Thus,
6 → 100%
and when reduces to half
3 → 50%
Thus, the percentage of the change from 6 to 3 is a 50% decrease.
ANOTHER METHOD
% Decrease = (original value - new value) / original value × 100%
= (6 - 3) / 6 × 100%
= 3/6 × 100%
= 0.5 × 100%
= 50%
Thus, the percentage of the change from 6 to 3 is a 50% decrease.
