Question

how much time is needed for $1,800 to accumulate $360 in simple interest at a rate of 10%?

Answer 1

please help

Answer 2

What's the simple interest formula?

Answer 3

SI=PRT

Answer 4

So, plug in your given numbers.

Answer 5

its asking for how much time is needed, how do I put that in with other number

Answer 6

Plug in the numbers you have

Answer 7

Anything you don't have, leave as the letter

Answer 8

how do I do that?

Answer 9

anyone?

Answer 10

Okay first you need to find out what 10% of $1,800 is. Have and ideas on what it is?

Answer 11

any*

Answer 12

SI=PRT

P is the principal amount, the 1800
R is the interest rate, but convert it to a decimal
T is time, leave it as T
SI is the interest, 360

Answer 13

$360=$180(T)

Answer 14

@agent0smith it would be $360=180*0.1*t?

Answer 15

Close but P is 1800, not 180.

Answer 16

hw do I solve this?

Answer 17

@ChrisHogan

Answer 18

???

Answer 19

First, write out the equation correctly, since you made the mistake i pointed out.

Answer 20

$360=1800*0.1*t?

Answer 21

Yes.

Answer 22

how do I solve this to get the answer though?

Answer 23

did you get my message? @pphalke

Answer 24

yes but @agent0smith had the equation set up right now how do I solve it

Answer 25

360=1800*0.1*t

First simplify the right side.

Then you can divide both sides

Answer 26

how do I simplify that side

Answer 27

1800*0.1?

Answer 28

its 180

Answer 29

what do I do after I get this answer do I subtract something else

Answer 30

360=1800*0.1*t
now we have
360=180*t

divide both sides by 180