Set up a proportion:
4.1/22 = 12.3/x
Cross multiply:
4.1 * x = 22 * 12.3
4.1x = 270.6
Divide 4.1 to both sides:
x = 66
Answer:
12 feet
Step-by-step explanation:
If we use a rectangle. there would be 4 sides the length we can represent as x and the width would result as 3x. If we use the perimeter formula, we would get 8x. 8x would equal 96, the perimeter.
8x= 96
x= 12
The length would be 12
Hope this helped!! :D
Answer:
$17
Step-by-step explanation:
Books = x
1. Set up an equation.
147 - 8x = 11
2. Solve for x
147 - 8x = 11
-8x = 11 - 147
-8x = -136
x = -136 / (-8)
x = 17
So, each book cost $17.
Answer:
B
Step-by-step explanation:
8x+3
Combine like terms! Multiply the 3 by the 2x and 1 as well, since it is in parenthesis.
