Answer:
14 nickels
7 dimes
Step-by-step explanation:
1. find out how many dimes there has to be to get $1.40
1 dime= .10
1.40/.10=14 dimes
14/2=7
so there are 7 dimes
since a nickel is half the amount of a dime there will be twice as many to make up the other half which is $0.70
.70/.05=14
there are 14 nickels
proof:
$0.10(7)+$0.05(14)= $1.40
hope this helps!
The number of dimes = 7
The number of nickels = 14
The worth of her nickels and dimes is $1.40.
1 nickel = $0.05
1 dime = $0.1
let
the number of dimes = x
the number of nickel = y
She has twice as many nickels as dimes. Therefore,
So,
0.05(2x) + 0.1(x) = 1.40
0.1x + 0.1x = 1.40
0.2x = 1.40
x = 1.40/0.2
x = 7
y = 2(7) = 14
Number of dimes = 7
Number of nickels = 14
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