Answer:
x = 0.45 (15% of 3)
Explanation:
x has a value of 3
find 15% of 3
Introduction:
'Percent (%)' means 'out of one hundred':
15% = 15 'out of one hundred',
p% is read p 'percent',
15% = 15/100 = 15 ÷ 100
Calculate percentage:
15% × 3 =
15/100 × 3 =
(15 ÷ 100) × 3 =
15 × 3 ÷ 100 =
45 ÷ 100 =
0.45
Proof.
How do we check the result?
If 15% × 3 = 0.45 =>
Divide 0.45 by 3...
... And see if we get as a result: 15%
Note:
100/100 = 100 ÷ 100 = 100% = 1
Multiply a number by the fraction 100/100,
... and its value doesn't change.
n/100 = n%, any number.
Calculate the percent value:
0.45 ÷ 3 =
0.15 =
0.15 × 100/100 =
(0.15 × 100)/100 =
15/100 =
15%
So we have proven that the calculations are correct.
Answer: Percentage of
15% of 3 = 0.45