Friday

April 18, 2014

April 18, 2014

Posted by **Benjamin** on Sunday, May 17, 2009 at 1:23pm.

- algebra -
**drwls**, Sunday, May 17, 2009 at 1:58pmLet N be the number of nickels and D be the number of dimes. Here is what you know:

N = 4D

10D + 5N = 810

-----------------

Now substitute 4D for N

10D + 20D = 810

30D = 810

You take it from there

- algebra -
**bob sanhowyour**, Monday, October 18, 2010 at 4:32pm30D=810 check

=D=810/30 108*.05+27*.1=8.1

=D=27 5.4+2.7=8.1

8.1=8.1

x=y*4

x=27*4

x=108

y=27

**Related Questions**

8th Grade Algebra - I need help with these problems: 1) A vending machine takes ...

math algebra 1 - There are 4 times as many nickels as dimes in a coin bag. The ...

algebra - Joseph always throws change into a can and takes it out every two ...

math - 1. Ms.lynch has 21 coins in nickels and dimes. Their total value is $1.65...

Math - In a collection of nickels, dimes, and quarters worth &6.90, the ratio of...

Algebra 2 - Adding 1 to which digit will increase 736,419 by ten thousand? i ...

8th gr. Algebra - I have 3 math problems for homework that are stumping me. Can ...

algebra - a jar contains $8.75 in nickels, dimes and quarters. There are two ...

Algebra - This is a word problem I am supposed to solve with systems. I am ...

math - John has $2.50 in nickels and dimes in his wallet. He has twice as many ...