Percents Test Review

Beach Bicycles sells two-seater bicycles. Its markup rate is 68%. Which equation represents the new price for a bicycle, y, given an original price, x.

• y = 0.32x

• y = x - 0.32

• y = 1.68x

• y = x + 0.68

Answer explanation

The correct equation for the new price with a 68% markup rate is y = 1.68x, where x is the original price.

A certain grocery store charges a fee of 3% of the total bill to have groceries delivered. What is the total price the store charges to deliver $140 worth of groceries?

• $154.42

• $149.80

• $144.20

• $140.42

Answer explanation

To find the total price, add the 3% fee to the original price: $140 + ($140 * 0.03) = $144.20. Therefore, the correct total price is $144.20.

During a closeout sale, some television models are discounted 40%. If a television is on sale for $1,485, what is the original price of the television rounded to the nearest dollar?

• $2,475

• $2,376

• $2,227

• $2,079

Answer explanation

To find the original price, divide the sale price by (100% - 40%) = 60%. $1,485 / 0.6 = $2,475 rounded to the nearest dollar.

A group of friends' dinner bill before tax is $122.75. The sales tax rate is 8%. They want to leave an 18% tip after tax. What is their total dinner bill, including tax and tip, rounded to the nearest cent?

• $150.57

• $154.29

• $154.67

• $156.43

Answer explanation

The total bill before tax is $122.75. Adding 8% sales tax gives $132.57. Then, an 18% tip on $132.57 is $24.86. Adding these gives a total of $157.43, rounded to $156.43.

A coffee shop makes hot chocolate with milk warmed to 172°F with an allowable error of 6%. What is the acceptable range for milk when making hot chocolate?

• 161.68°F to 182.32°F

• 163.8°F to 180.19°F

• 166°F to 178°F

• 171.4°F to 172.6°F

Answer explanation

The acceptable range for milk when making hot chocolate is 6% above and below 172°F, resulting in a range of 161.68°F to 182.32°F. Therefore, the correct choice is 161.68°F to 182.32°F.

The Shoe Stop is having a sale on sneakers. The original price for a pair of high-top sneakers is $135.00. The sale price for the sneakers is $94.50. What is the percent decrease in the price of the sneakers?

• 30%

• 40.5%

• 42.9%

• 70%

Answer explanation

To calculate the percent decrease, subtract the sale price from the original price, then divide by the original price and multiply by 100. (($135.00 - $94.50) / $135.00) * 100 = 30%

What is the percent decrease from 150 to 117?

Answer explanation

Difference, divided by original, multiplied by 100 to convert to percent.

What is the percent decrease from 340 to 255?

What is the percent decrease from 450 to 351?

Lamar is a commercial real estate agent who earns a yearly salary of $82,500 plus a 2.5% commission on his total sales. If his total sales in one year are $3.75 million, what are Lamar's earnings for that year?