Terrance has $100 that he can invest in a savings account. His bank is willing to pay interest to his account at a rate of 0.04. How long will Terrance need to leave the money in the account if he wants to earn $100 in interest, doubling his money? Use the formula . T= I/PR
25 years
10 years
40 years
5 years
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OpenStudy (anonymous):
so first you need to put the numbers in to match the formula ya know what i mean?
OpenStudy (mackenzie2013):
Yes but im confused
OpenStudy (anonymous):
what makes you confused?
OpenStudy (mackenzie2013):
I know the rate is 0.04 I is the amount of investment which is 100$ Thats really all I understand...probably wrong to lol
OpenStudy (mackenzie2013):
@JesseJ0906
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OpenStudy (anonymous):
ok does T mean time?
OpenStudy (mackenzie2013):
Yes.
OpenStudy (anonymous):
ok what is P? i can't remember
OpenStudy (mackenzie2013):
P represents the principle or amount invested
OpenStudy (anonymous):
ok so it'd be T=100/100*.04
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OpenStudy (anonymous):
jeez i just realized i say ok A LOT
OpenStudy (mackenzie2013):
So it would be 0.04?
OpenStudy (anonymous):
no hah it is 25 because .04*100=4 amd 100/4=25
OpenStudy (mackenzie2013):
OK so you take .04 and times it by 100 ?
OpenStudy (anonymous):
yep i think i just forgot to put parenthesis somewhere i tend to do that
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