Joan had $147 to spend on eight books. After buying them she had $11. How much did each book cost?
2 answers:
Answer:
Each book costs $17
Step-by-step explanation:
<u>Step 1: Make an expression
</u>
147 total -> 147 =
8 books -> 8x
11 left -> 11
<u>Expression:</u> 147 = 8x + 11
<u>Step 2: Subtract both sides by 11
</u>
147 - 11 = 8x + 11 - 11
136 = 8x
<u>Step 3: Divide both sides by 8
</u>
136 / 8 = 8x / 8
17 = x
Answer: Each book costs $17
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.
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