# math

posted by .

How would I solve this:

Mr. Merrill has 3 times as many nickels as dimes. The coins have a total of \$1.50. How many of each coin does he have?

• math -

n = 3d

5n + 10d = 150

Substitute 3d for n in second equation and solve for d. Insert that value into the first equation and solve for n. Check by inserting both values into the second equation.

• math -

d = number of dimes
3d = number of nickels
d + 3d = 1.50

simplify and solve the equation for d and 3d

• math -

## Similar Questions

1. ### 8th gr. Algebra

I have 3 math problems for homework that are stumping me. Can anyone help guide me?
2. ### 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 …

I need help with these problems: 1) A vending machine takes only nickels and dimes. There are 5 times as many dimes as nickels in the machine. The face value of the coins is \$4.40. How many of each coin are in the machine?
4. ### math algebra 1

There are 4 times as many nickels as dimes in a coin bag. The coins have a total value of 600 cents (\$6.00). Find the number of nickels. Write and solve an equation to do so. (i found the answer through guess and check but i need to …
5. ### Math problem I need help with

Combination of coins that can be used; fifty-cent piece, quarters, dimes, nickels, and pennies Q: My 3 types of coins total 37 cents. I have fewer than 4, but more than 1, of each coin. What are the coins?
6. ### math

A charity organization is collecting change to raise monay. They have collected twice as many dimes as quarters, 22 more nickels than dimes, and 3 times as many pennies as nickels. a) define a variable for the number of quarters collected. …
7. ### math

A charity organization is collecting change to raise monay. They have collected twice as many dimes as quarters, 22 more nickels than dimes, and 3 times as many pennies as nickels. a) define a variable for the number of quarters collected. …
8. ### MATH HELP

A charity organization is collecting change to raise monay. They have collected twice as many dimes as quarters, 22 more nickels than dimes, and 3 times as many pennies as nickels. a) define a variable for the number of quarters collected. …
9. ### math

1. Ms.lynch has 21 coins in nickels and dimes. Their total value is \$1.65. How many of each coin does she have?
10. ### Math

James had three times as many nickels as dimes. If the total value of his coins was \$1.00, how many of each kind of coin did he have?

More Similar Questions

Post a New Question