Answer:
P = 10x+2
Step-by-step explanation:
The perimeter of a rectangle is
P = 2(l+w)
the length is 3x+2 and the width is 2x-1
Substituting in
P = 2( 3x+2 + 2x-1)
Combine like terms
P = 2(5x+1)
Distribute the 2
P = 10x+2
Answer:
<h3>
D. (x - 3)² = 17</h3>
Step-by-step explanation:
Answer:
1/32
Step-by-step explanation:
A unit fraction is a fraction that has a numerator of 1.
The numerator is the number on top in a fraction.
The correct answer choice for this question is (x+8,y+4). Helps to count the difference between the points A->A’ and so on...
Answer: Kim can mow the greens alone in 6 hours.
Step-by-step explanation:
Let K be the rate Kim mows the greens, and S the rate for Shayla. The rates K and S will be in greens/hour.
We know they can mow 1 green in 4 hours. We can state this as a sum of their rates times the 4 hours equals one green:
(4 hours)*(K + S) = 1 green
We are told that K = 2S [Kim is twice as fast as Shayla]
Subsititute:
(4 hours)*(K + S) = 1 green
(4 hours)*(2S + S) = 1 green
4*(2S + S) = 1 green
12S = 1 green
Shalya's rate is 1 green/12 hours
Kim is twice as fast: K = 2S
Kim's rate is 1 green/6 hours.