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3 years ago

Find the following percentages. a. 15% of 930 b. 6% of 120 c. 4.2% of 50 d. 200% of 145

Mathematics

2 answers:

Mama L [17]3 years ago

4 0

Answer:

a) 139.5

b) 72

c) 21

d) 290

Step-by-step explanation:

a). 15% of 930

15%930 = (15 * 930)/100

= 139.5

b). 6% of 120

6% of 120 = (6 * 120)/100

= 72

c). 4.2% of 50

4.2% of 50 = (42 * 50)/100

= 290

d). 200% of 145

200% of 145 = (200 * 145)/100

= 290

Therefore,

a) 139.5

b) 72

c) 21

d) 290

Tom [10]3 years ago

3 0

These are 4 questions and 4 answers.

Answer:

a. 15% of 930 = 139.5

b. 6% of 120 = 7.2

c. 4.2% of 50 = 2.1

d. 200% of 145 = 290

Explanation:

Percentage is defined as number of parts per 100.

Percentage can be expressed as a ratio (fraction) or decimal.

1% = 1 / 100 = 0.01

10% = 10 / 100 = 0.1

25% = 25 /100 = 1/4 = 0.25

50% = 50 / 100 = 1/2 = 0.5

75% = 75 / 100 = 3/4 = 0.75

You can use either the fraction or the decimal form to find the percentage.

This is how you apply this to questions a through d.

a. 15% of 930

15% × 930 = 15 / 100 × 930 = 0.15 × 930 = 139.5

b. 6% of 120

6% × 120 = 6 / 100 × 120 = 0.06 × 120 = 7.2

c. 4.2% of 50

4.2% × 50 = 4.2 / 100 × 50 = 0.042 × 50 = 2.1

d. 200% of 145

200% × 145 = 200 / 100 × 145 = 2 × 145 = 290

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