Mastering Adding and Subtracting Rational Expressions

What does one ratio in a percent proportion compare?

• A part of a quantity to another part

• A part of a quantity to 100

• A part of a quantity to the whole quantity

• The whole quantity to another whole quantity

In the equation 'is over of equals percent over 100', what does 'is' represent?

• The fraction

• The whole quantity

• The part of the quantity

• The percent

If 18 is what percent of 40, what is the correct percent?

• 40%

• 55%

• 45%

• 50%

What percent of 75 is 80?

• 100%

• 106.6%

• 75%

• 80%

If 21 is 7.5% of a number, what is that number?

• 350

• 320

• 300

• 280

What is 64% of 80?

• 50.2

• 51.2

• 52.2

• 53.2

If a book collector has 425 books and 56% were published before 1900, how many books were published before 1900?

• 238

• 240

• 242

• 244

What percent of the 28 dogs at the shelter are purebred if 12 are purebred?

• 46.8%

• 40.8%

• 42.8%

• 44.8%

Bethenny uses 8% of her weekly paycheck to pay for gas. If she spent $34.12 on gas, what is her paycheck?

• $438.50

• $434.50

• $430.50

• $426.50

If 15% of the Skittles in a bag are purple and there are 60 Skittles in total, how many Skittles are not purple?

• 53

• 52

• 51

• 50