Question

ariana recently emptied her coin jar and counted the coins. coin jar contents copper coins silver coins other what percent of the coins were copper coins or silver coins? write your answer using a percent sign (%).

Explanation:

Step1: Find the number of each type of coin

From the bar - graph:
Number of copper coins \(= 90\)
Number of silver coins \(= 35\)
Number of other coins \(= 45\)

Step2: Calculate the total number of coins

Total number of coins \(=90 + 35+45=170\)

Step3: Calculate the number of copper or silver coins

Number of copper or silver coins \(=90 + 35 = 125\)

Step4: Calculate the percentage

The formula for percentage is \(\text{Percentage}=\frac{\text{Part}}{\text{Whole}}\times100\)
Here, the part is the number of copper or silver coins (\(125\)) and the whole is the total number of coins (\(170\))
\(\text{Percentage}=\frac{125}{170}\times 100=\frac{12500}{170}\approx73.53\)

Answer:

\(73.53\%\)