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?

A piggy bank contains only quarters and nickels and there is a total of 60 coins. The total value of coins is $7.40. I'm guessing that you want to know the number of dimes and the number of nickels.. Let q be the number of quarters Let n be the number of nickels. There are 60 coins all together, so . We know that the value of the coins is $7.40.

Step-by-step explanation:

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

the answer is 99.