Can u give an explanation for the answer
1 answer:
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 = 0.6
So x = 0.6 × 20 = 12
Hence there are are 12 nickel coins and 20 - 12 = 8 quarter coins.
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<h3>x = 21/5</h3>
Step-by-step explanation:
<h3>___________________________</h3><h3>Given →</h3>5x:9 = 7:3
<h3>So,</h3>→ 5x/9 = 7/3
→ x = (7 × 9)/(3 × 5)
→ x = 21/5
<h3>___________________________</h3><h3>Hope it helps you!!</h3>