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If Jacob has 40$, for working 3 hours. But spends 1/3 of the money that he just earned for working 7 more hours. How much money does Jacob have left?

 Jun 13, 2017

Best Answer 

 #1
avatar+80 
+2

So, wait. He starts off with $40 for working 3 hours.

That means that he earns $13.34 per hour. (It's a repeating decimal, so I rounded it)

If he works another 7 hours, then he earned $93.34 (It's also repeating).

But he spent 1/3 of that money earned in the 7 hours, so he spent $31.11.

That means he had around $62.22 left from those 7 hours. 

You would then add the $40 with the $62.22 and would get:

 

$102.22 

 

 

You understand?

 

(It's an estimate, because of the repeating decimals)

 Jun 13, 2017
edited by mathguardian23  Jun 13, 2017
 #1
avatar+80 
+2
Best Answer

So, wait. He starts off with $40 for working 3 hours.

That means that he earns $13.34 per hour. (It's a repeating decimal, so I rounded it)

If he works another 7 hours, then he earned $93.34 (It's also repeating).

But he spent 1/3 of that money earned in the 7 hours, so he spent $31.11.

That means he had around $62.22 left from those 7 hours. 

You would then add the $40 with the $62.22 and would get:

 

$102.22 

 

 

You understand?

 

(It's an estimate, because of the repeating decimals)

mathguardian23 Jun 13, 2017
edited by mathguardian23  Jun 13, 2017
 #2
avatar+80 
+1

Would that be right? Fix my math if required.

mathguardian23  Jun 13, 2017
 #4
avatar
0

Thanks, I didn't realize that you had to round!

Guest Jun 13, 2017
 #3
avatar+98197 
0

 

You are correct Mathguardian....Good Job.......!!!!!

 

 

cool cool cool

 Jun 13, 2017

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