Register
A person has 17 coins, all nickels and dimes, worth $1.25. How many nickels are there?
84.0k views
4 votes
A person has 17 coins, all nickels and dimes, worth $1.25. How many nickels are there?

User Saeed Heidarizarei
by
6.9k points

1 Answer

2 votes
9 Nickels, 8 Dimes...here is how i work it out!

d + n = 17
0.1d + 0.05n = 1.25

d = 17 - n
0.1 (17 - n) + 0.05n = 1.25
1.7 - 0.1n + 0.05n = 1.25
1.7 - 0.05n = 1.25
-0.05n = -0.45
n = 9

9 Nickels, 8 Dimes
User Razakj
by
6.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.8m questions

10.5m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
Link Copied!