SOLUTION: i have 30 coins in my pocket, some dimes, twice as many nickels, and the rest quareters. the total value is $5.30. how many dimes do i have?

SOLUTION: i have 30 coins in my pocket, some dimes, twice as many nickels, and the rest quareters. the total value is $5.30. how many dimes do i have?

Algebra.Com

Question 349034: i have 30 coins in my pocket, some dimes, twice as many nickels, and the rest quareters. the total value is $5.30. how many dimes do i have?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
dimes=x
nickels=2x
quarters = 30-(x+2x)
=30-3x.
..
10x+5*2x+25(30-3x)=530
10x+10x+750-75x=530
-55x=530-750
-55x=-220
x=4 dimes
nickels = 2*4 =8
quarters = 30-3*4= 18
...
4*10+8*5+18*25=530
RELATED QUESTIONS
I have $5.50 total in my pocket, consisting of nickels, dimes and quarters. There are 30... (answered by Edwin McCravy)

in your pocket you have some nickels, dimes, and quarters. there are 20 coins altogether... (answered by richwmiller)

I have some quarters, some nickels and some dimes in my pocket. There are 14 coins total. (answered by stanbon)

I have in my pocket 25 coins made up of nickels and dimes. The total of these coins is... (answered by ikleyn)

Joey has 24 coins in his pocket. The coins are all nickels and dimes. The total value of... (answered by ikleyn)

Brian has 23 coins in his pocket, in dimes and nickels. The total value of the change is... (answered by stanbon)

Jamie has 6 quarters and some dimes in his pocket. the total value of the coins is 4.50.... (answered by TimothyLamb)

Jamie has 6 quarters and some dimes in his pocket. The total value of the coins is $4.50. (answered by FrankM)

In my pocket I have only nickels and dimes. How many of each type of coin do I have if I (answered by TimothyLamb,ewatrrr)