Ax + By = C for x Ax + By = C for y Use the percent formula, A = PB: A is P perc

Question

Ax + By = C for x Ax + By = C for y Use the percent formula, A = PB: A is P percent of B, to solve Exercises 27-42 what number is 3% of 200? what number is 8% of 300? what number is 18% of 40? what number is 16% of 90? 3 is 60% of what number? 8 is 40% of what number? 24% of what number is 40.8? 24% of what number is 40.8? 32% of what number is 51.2? 3 is what percent of 15? 18 is what percent of 90? What percent of 2.5 is 0.3? What percent of 7.5 is 0.6? If 5 is increased to 8, the increase is what percent of the original number? If 5 is increased to 9, the increase is what percent of the original number? If 4 is decreased to 1, the decrease is what percent of the original number? If 8 is decreased to 6, the decrease is what percent of the original number?

Explanation / Answer

39)

5 is increased to 8,so percentage increase

=(8-5)/5*100%

=300/5%

=60% increase.

41)

4 is decreased to 1 so, decrease percantage is

=(4-1)/4*100%

=75% decrease.

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