Solve the ff problems.

Question

Solve the following word problems.

1. How many items did Armand miss in a 75-item test if he was not able to answer 12% of them?

2. There were 300 students in a journalism conference, Seventy-five of them were from europe. What percent of the participants were from europe?

3. Seventy-five eggs delivered to a store were cracked. This represents 10% of the total package. How many eggs were in the package?

4. Mr. Tan receives $18,000 salary each month. He saves 4,500 every month. What percent of his salary does he save?

5. Sixty-nine percent of 200 is what percent of 1380?

Answer 1

#1) 12% out of 75 --> 0.12 * 75 = 9 missed questions

1. To convert a percent into a decimal: Divide by 100. So, 12/100 = 0.12

#2) 75 out of 300 --> 75/300 --> 0.25 * 100 = 25% were from Europe

1. To convert a decimal into a percent: Multiply by 100. So 0.25 * 100 = 25%

#3) 75/ X = 10/100 --> 7500 = 10X = 750 eggs in total

1. How to Cross multiply: Multiply the numerators by the denominators. For instance, 75 * 100 which is 7500. 75 is the numerator for the first fraction and 100 is the denominator for the second fraction.
2. How to Isolate a variable: Perform the opposite (or inverse) operations on the term (number) with the variable. For instance, because 10 is being multiplied by X, we would divide 10 to both sides of the equation.
3. Remember: Whatever you do to one side of the equation, you must do to the other!!

#4) $4,500 / $18,000 --> 0.25 * 100 = 25% saved every month

1. To convert a decimal into a percent: Multiply by 100. So 0.25 * 100 = 25%

#5) 0.69 * 200 --> 138 --> 138/1380 = 10%

1. To convert a decimal into a percent: Multiply by 100. So 0.10 * 100 = 10%

Answer 2

1 12% of 75 = .12(75) = (12/100)75 = 12(3/4 = 9 missed questions

2 75% of 300 = (75/100)300 = 75(3) = 225 from Europe

3 75 was 10% of the Total. 75 = .10T T= 10(75= 750 eggs Total

4 1800/4500 = 18/45 = 2/5 = .4 = 40% saved monthly

5 69% of 200 = 138. which is 10% of 1380