Answer:
There are 8 quarters in the jar.
Step-by-step explanation:
There are 20 coins in a jar.
Each coin is either a nickel or a quarter.
The probability of selecting a nickel is 0.6
Let's assume there are x number of nickels
The probability of selecting a nickel coin is [tex]\frac{x}{20}[/tex] = 0.6
So x = 0.6 × 20 = 12
Hence there are are 12 nickel coins and 20 - 12 = 8 quarter coins.