Samuel is saving to buy a watch that costs $169.This is $48 More than 4 times what he saved last month.How much did he save last
2 answers:
Answer:
Samuel saved $30.25 last month.
Step-by-step explanation:
This problem can be solved by an equation, where x is the amount that Samuel saved last month.
You know that on one side of equality you have $ 169. What you should know is to what expression this value is matched.
For that, you should know that 4 times more than what Samuel saved means that what he has saved must be multiplied by 4. $ 48 more means that the above should be added $ 48. Therefore you can propose the following equation:
<em>4*x+48=169 </em>
For this type of equation, you use the inverse operation to solve it.
The inverse operation of addition is subtraction, so you subtract 48 from both sides of equality, obtaining:
4*x+48-48=169-48
4*x=121
Now, the inverse operation of multiplication is division. So, you divide both sides by 4 and get:
x=30.25
<u><em>So, Samuel saved $30.25 last month.</em></u>
<u><em></em></u>
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