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Mathematics 21 Online
OpenStudy (anonymous):

Joshua wants to have $1,000 in 8 years. He has $750 that he can use for his initial deposit. What simple annual interest rate would he need in order to have the amount that he wants to have in 8 years? Round your answer to the nearest hundredth of a percent. (3 points)

OpenStudy (anonymous):

@igreen

OpenStudy (anonymous):

what do u think?

OpenStudy (mathstudent55):

He has $750 and he needs to end up with $1000. How much interest must he earn?

OpenStudy (anonymous):

$125?

OpenStudy (mathstudent55):

$750 + $125 = $875, not $1000, so he needs to earn more than only $125 in interest. What is $1000 - 750 = ?

OpenStudy (anonymous):

925

OpenStudy (anonymous):

18 is what percent of 40?

OpenStudy (anonymous):

@iGreen

OpenStudy (anonymous):

just multiply .18 x 40

OpenStudy (anonymous):

thank you I have a few other questions too

OpenStudy (anonymous):

45 is 15% of what number

OpenStudy (anonymous):

same way to work it out. .15 x45

OpenStudy (anonymous):

16% of what number is 20

OpenStudy (mathstudent55):

Those two percentage answers are incorrect.

OpenStudy (anonymous):

well I dont think that 18 is what percent of 40 is 720%

OpenStudy (mathstudent55):

@mjperez18 Are you really interested in solving these problems correctly? If so, why don't we work on the first one until we get it right, then we can move on.

OpenStudy (anonymous):

yes I am I was talking to the other person in this question I am failing math and I need good grades in order to transfer schools so yes I care

OpenStudy (mathstudent55):

Great. Let's work on the first problem together until we get it done. Then we'll go to the next one. Can you please start a new post with just the first problem. I'll go there and will help you get it right.

OpenStudy (anonymous):

yes

OpenStudy (mathstudent55):

ok

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