Area : Multiply the two numbers
13*8=104 yd^2
Perimeter: Add the two numbers two times
Perimeter : 13+8+13+8=42 yd
Answer:
Area is 104yd^2
Perimeter is 42yd
C: 30
You replace the value of Y in 5Y with 6 and multiply 5 by 6 to get 30.
To find the percentage of a number, you take the percent - 5% - and change it to a decimal by moving the percent over 2 times to the left and multiplying it by the number. So...
.05 x 63
= 3.15
Answer: 5% of 63 is 3.15
First you would divide by 2 in both sides
P/2 = l + w
Then you would subtract w from both sides
P/2 - w = l
This is the easiest method do isolate l
You can also distribute the 2 to ( l + w) first
P= 2l + 2w
Then subtract 2w from both sides
P - 2w = 2l
Then you would divide by 2
(P - 2w) / 2 = l
P/2 - w = l