Question

Rachna has nickels, dimes, and quarters in her piggy bank. She has $4.65 altogether. She has three more quarters than dimes and twice as many nickels as quarters. How many quarters does Rachna have?
A- 8 , B- 11 , C- 22 , D- 41

Answer 1

Lets the number of quarters is n. What is the number of dimes in terms of n ?

Answer 2

That is the value of nickels. I am asking the number of dimes in terms of n?

Answer 3

dimes are 10 cents.

Answer 4

OK..you have 3 more quarters (n) than dimes that is dimes are n-3 and number of nickels = n/2
So, n*25+(n-3)*10+n/2 * 5 = 465 cents
25n+10n-30+5n/2 = 465
Solve for n.

Answer 5

You have done wrong calculation. Show me your steps.

Answer 6

No. But you are close.

Answer 7

Redo the calculation.

Answer 8

No

Answer 9

Show me your steps so that I can correct you..

Answer 10

You cannot combine 35x and 30. They are different things.

Answer 11

You have
35x+5x/2 = 465 +30

Answer 12

35x+2.5x = 495
37.5x = 495

Answer 13

Solve for x.

Answer 14

Yes. But that should not be the answer as number of quarters cannot be a fraction!

Answer 15

Oops.."twice as many nickels as quarters" means nickels are 2n. So
n*25+(n-3)*10+2n* 5 = 465 cents
Now redo the calculation.

Answer 16

@RowanMartinFan What is the answer now ?

Answer 17

25n+10n+10n = 465+30

Answer 18

45n = 495

Answer 19

Correct!

Answer 20

ok thnak u sir i see now math is bull & i hate it

Answer 21

Math works on the principal of practice, practice and practice! :)

Answer 22

well with my problem my mom tells me i have ADHD & parts of FAS so I cant remember things or stay on task enough to learn things like math @ all