MATH HELP PLEASE
posted by mary .
Bill has 30 coins, some nickels some dimes. They equal $2.10. How many nickels are there? What is the equasion used to solve this problem? When I solve it, I get 4.3 nickels, but how can there be .3? Please help me solve
I posted the two equations for this about an hour ago. Show your work and I'll find your error.
N + D = 30
5N + 10D = 210
Multiply the first by 5 and subtract from the second and you will have your answers.

n=5
d=28
Respond to this Question
Similar Questions

math
Bill has 30 coins, some nickels some dimes. They equal $2.10. How many nickels are there? 
math
Jo has 37 coins (all nickels, dimes and quarters) worth $5.50. She has 4 more quarters than nickels. How many of each type of coins does she have? 
Algebra
This is a word problem I am supposed to solve with systems. I am having trouble setting it up if anyone could help me. A coin bank contains only dimes and nickels. The bank contains 46 coins. If 5 dimes and 2 nickels were removed the … 
Math
I just need to know the formula to solve this problem. I will solve it myself. Problem: A woman has $1.70 in dimes and nickels. She has 5 more dimes than nickels. How many nickels does she have? 
help! due tommorrow
an assortment of coins contains 20 pennies, 2 nickels and 6 dimes what percentage of the coins are nickels? 
Algebra
Solve the problem using matrices. John has a jarful of quarters and nickels. There are 84 coins in the jar. The value of the coins is $13.00. How many of each type of coin are there? 
algebra
No. 2 alyssa has some coins in her purse consisting of pennies, nickels and dimes. She has 2 more nickels than dimes and thrice as many pennies as nickels. If the total is 0.52 dollars how many coins of each kind does she have. 
Math
A candy machine contains 5 times the number of nickels in dimes and is less than 16 the number of quarters. Total value is $12.80. How many are there nickels and dimes? 
CSAB/Advance Algebra
A handful of 65 coins consist of pennies, nickels and dimes. The number of nickels is 4 less than twice of pennies, and there are 13 more dimes than nickels. How many coins of each kind are there? 
Algebra
Can you please help on this Algebra problem?