Question

Johnny has a bag with 84 coins in it. If the ratio of dimes to nickels to pennies is 3 to 2 to 1, how many

Answer 1

Answer:

28

Step-by-step explanation:

Number of coins in the bag ⇒ 84

Give that,

Dimes : Nickels : Pennies

  3       :       2     :   1

You can see that, there are 6 parts . ( 3 + 2 + 1 = 6 )

And now let us write the types of coins in fractions.

Dimes ⇒  $\frac{3}{6}$

Nickels ⇒ $\frac{2}{6}$

Pennies ⇒ $\frac{1}{6}$

And now they're asking for the number of nickels.

To find that, you can multiply 84 ( number of coins) by it's fraction ( 2/6).

Let us solve.

84 × $\frac{2}{6}$

$\frac{84*2}{6}$

$\frac{168}{6}$

28

Therfore, there are 28 nickels.