Question

practice problems 3.1
convert the following numbers to percentages and percentages to numbe

problem # proble

1. 3.2 =
2. 157% =
3. 20 =
4. 3.4% =
5. 0.007 =
6. 12.33% =
7. 1.40 =
8. 0.1% =

Explanation:

Step1: Multiply by 100 for %

$3.2 \times 100 = 320$ → $320\%$

Step2: Multiply by 100 for %

$20 \times 100 = 2000$ → $2000\%$

Step3: Multiply by 100 for %

$0.007 \times 100 = 0.7$ → $0.7\%$

Step4: Multiply by 100 for %

$1.40 \times 100 = 140$ → $140\%$

Step5: Divide % by 100

$\frac{157}{100} = 1.57$

Step6: Divide % by 100

$\frac{3.4}{100} = 0.034$

Step7: Divide % by 100

$\frac{12.33}{100} = 0.1233$

Step8: Divide % by 100

$\frac{0.1}{100} = 0.001$

Answer:

1. $320\%$
2. $2000\%$
3. $0.7\%$
4. $140\%$
5. $1.57$
6. $0.034$
7. $0.1233$
8. $0.001$