Question

Katie invested $1200 at 8.5% interest. She earned $612 interest at the end of y years.

What is the value of y?

A.
18

B.
12

C.
6

D.
3

Answer 1

(si)=ptr/100

Answer 2

si = simple interest

Answer 3

612=si

Answer 4

p=1200

Answer 5

r=8.5

Answer 6

(si)=ptr/100
612=1200*t*8.5/100

Answer 7

now can u solve for t @Kmcerullo

Answer 8

t=((612*100)/(1200*8.5))

Answer 9

Im confused

Answer 10

how much is 612*100

Answer 11

how much is 1200*8.5

Answer 12

Okay i got it thank you :)

Answer 13

:)

Answer 14

Lily invested $750 in a savings account and earned $225 in interest at the end of 5 years.

What was the interest rate?

A.
5%

B.
5.5%

C.
6%

D.
6.5%
@CGGURUMANJUNATH Can you help me ?

Answer 15

(si)=ptr/100

Answer 16

now u solve this prob i will help u !

Answer 17

si=?

Answer 18

i just need the steps for this one and ill pro get it

Answer 19

that is what i am helping u

Answer 20

si=225 right ?

Answer 21

now u tell me p=?

Answer 22

t=?

Answer 23

p=750 ?

Answer 24

yes

Answer 25

t=?

Answer 26

and t=5 ?

Answer 27

yes

Answer 28

(si)=ptr/100

Answer 29

r has to b found out !

Answer 30

how do i find what r is ?

Answer 31

by substituting in the formula (si)=ptr/100

Answer 32

thats confusing lol

Answer 33

225=(750*5*r)/100

Answer 34

(225*100)=(750*5*r)

Answer 35

thank you :)

Answer 36

(225*100)/(750*5)=r

Answer 37

r=? @Kmcerullo

Answer 38

tell me the final answer !

Answer 39

6

Answer 40

:)

Answer 41

u got it .

Answer 42

Thank you

Answer 43

WC.