Hailey has 40 nickels and dimes and has a total of $2.85. How many dimes does she have?
'I got -23 nickels bit i don't think that's right.
6 answers
23 nickels is right, but that wasn't what you were asked to find.
23 * 0.05 = 1.15
2.85 - 1.15 = 1.70
1.70 / 0.1 = 17
23 + 17 = 40
You're right!
2.85 - 1.15 = 1.70
1.70 / 0.1 = 17
23 + 17 = 40
You're right!
Honestly, I think you are right.
nickels = 5 cents
dimes = 10 cents
23 x 5 = 115 - Or this could be $1.15
There are 17 remaining coins. These are dimes.
17 x 10 = 170 - Or this could be $1.70
Add the total dollar amounts:
$1.15 + $1.70 = $2.85
So, I think you are correct.
I hope this helps! :)
nickels = 5 cents
dimes = 10 cents
23 x 5 = 115 - Or this could be $1.15
There are 17 remaining coins. These are dimes.
17 x 10 = 170 - Or this could be $1.70
Add the total dollar amounts:
$1.15 + $1.70 = $2.85
So, I think you are correct.
I hope this helps! :)
thanks all of you!:)
You're welcome McCormick. Ms Sue's way is a lot easier, I was just doing it the way that I would have double-checked it.
number of nickels --- n
number of dimes ---- d
n+d = 40
5n + 10d = 285
divide by 5
n + 2d = 57
subtract the two equations:
d= 17
then in n+d = 40
n+17 = 40
n = 23
number of dimes ---- d
n+d = 40
5n + 10d = 285
divide by 5
n + 2d = 57
subtract the two equations:
d= 17
then in n+d = 40
n+17 = 40
n = 23
2 answers