+0

# pls hurry

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455
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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

#1
+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
+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)

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

Would that be right? Fix my math if required.

mathguardian23  Jun 13, 2017
#4
0

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

Guest Jun 13, 2017
#3
+98197
0

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

Jun 13, 2017