Brielle's piggy bank has 90 coins, all nickels and dimes. The total value of the money in her piggy bank is $6.00.She has twice as many nickels as she does dimes. How many nickels and dimes does Brielle have?

45 dimes

Step-by-step explanation:

66 nickels = 66 x $0.5 = $3.30

$7.80 - $3.30 = $4.50

$4.50 / $0.10 = 45

Brielle has 45 dimes.

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5

step-by-step explanation:

1