Question #6fc3c

1 Answer
Oct 16, 2017

See a solution process below:

Explanation:

For all of these questions it is important to understand what % or percent represents.

"Percent" or "%" means "out of 100" or "per 100".

Therefore x% can be written as x/100.

Question 1: 3 is 1% of what amount.

We can write 1% as 1/100 which also equals 0.01

Let n equal the amount we are looking for. We can write and solve:

3 = 1/100 xx n

color(red)(100) xx 3 = color(red)(100) xx xx 1/100 xx n

300 = cancel(color(red)(100)) xx xx 1/color(red)(cancel(color(black)(100))) xx n

300 = n

n = 300

3 is 1% of 300.

Question 2: What percent of 100 is 79?

79/100 = 79%

Question 3: What percent of 925 is 37?

Solve x/100 = 37/925

Question 4: 247 is 38% of what amount?

Same as question 1 - solve: 247 = 38/100 xx n

Question 5: What is 78% of 550?

Solve: n = 78/100 xx 550