algebra
posted by Benjamin .
Militsa has 4 times as many nickels as dimes. Their total value is $8.10. How many of each coin does she have

Let 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 
30D=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 
85

jk idk how
Respond to this Question
Similar Questions

8th Grade Algebra
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? 
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 … 
algebra
Joseph always throws change into a can and takes it out every two weeks. This time it is all nickels and dimes. There are six times as many dimes as nickels, and the value of the dimes is $4.95 more than the value of the nickels. How … 
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? 
algebra
Jim has some nickels, dimes and quarters worth $5.30. There are five times as many dimes as quarters, and six more nickels than dimes. How many of each kind of coin does he have? 
math
dave throws loose change in to a cup an takes it out every 2 weeks this time it is all nickels and dimes there are 7 times as many dimes as nickels and the value of dimes is $5.85 more than the value of the nickels how many nickels … 
PLZ! HELP! Algebra
Barbara has $4.40 worth of change in nickels and dimes. If she has 2 times as many nickels as dimes, how many of each type of coin does she have? 
college algebra
Barbara has $4.40 worth of change in nickels and dimes. If she has 2 times as many nickels as dimes, how many of each type of coin 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? 
algebra
A family has a coin jar that is now full. The children count the change and calculate the total value to be $29.42. Let Q represent the number of quarters and use the information below to find the number of each coin. There are: 138 …