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Mathematics 8 Online
OpenStudy (anonymous):

Marco deposited $500 in a savings account earning 4% interest over 5 years. What was the total amount of interest earned at the end of 5 years? A. $40 B. $50 C. $100 D. $200

OpenStudy (anonymous):

4% interest mean that they have added 4% of 500 to the 500 you have.

OpenStudy (anonymous):

4% of 500 is 500 times .04.

OpenStudy (anonymous):

so you will take 500*.04 and then times it by 5 (5 years) and that will be your answer :)

OpenStudy (anonymous):

200

OpenStudy (anonymous):

nope,

OpenStudy (anonymous):

umm y i did 500 times 0.4

OpenStudy (anonymous):

500 times .04 is 20

OpenStudy (anonymous):

no worries :) .4 is 40%. 4% is .04

OpenStudy (anonymous):

thats not an answer

OpenStudy (anonymous):

you have to times it by 5

OpenStudy (anonymous):

ohh 100

OpenStudy (anonymous):

good job

OpenStudy (anonymous):

:)

OpenStudy (anonymous):

Mary borrowed $11,000 at 5% interest for 4 years. What was the total interest? A. $22 B. $220 C. $2,200 D. $22,000

OpenStudy (anonymous):

im going to work this one out see if i get it right okay

OpenStudy (anonymous):

:) way to go

OpenStudy (anonymous):

22,000

OpenStudy (anonymous):

hmmm..did you do .5 instead of .05?

OpenStudy (anonymous):

nope

OpenStudy (anonymous):

okay when i do 11,000 times 0.5 i get 55,000

OpenStudy (anonymous):

11,000 times 5 is 55,000

OpenStudy (anonymous):

ether way i get the same answer

OpenStudy (anonymous):

11,000 times .05 is 550

OpenStudy (anonymous):

and then you'll do 550 times 4..do you follow that?

OpenStudy (anonymous):

okay i see what i did but i still get 22,000

OpenStudy (anonymous):

220

OpenStudy (anonymous):

nope :) 11,000 at 5% for 4 years means 11,000 times .05 times 4 and that is $2200 interest

OpenStudy (anonymous):

I've got to go, sorry. Good luck

OpenStudy (anonymous):

okay

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