Chapter 3

The nutrition fact sheet at a fast food restaurant says a small portion of chicken nuggets has 190 calories, and 114 calories are from fat. What percent of the total calories is from fat?

Emma gets paid \(\$ 3,000\) per month. She pays \(\$ 750\) a month for rent. What percent of her monthly pay goes to rent?

Dimple gets paid \(\$ 3,200\) per month. She pays \(\$ 960\) a month for rent. What percent of her monthly pay goes to rent?

Tamanika got a raise in her hourly pay, from \(\$ 15.50\) to \(\$ 17.36\). Find the percent increase.

Ayodele got a raise in her hourly pay, from \(\$ 24.50\) to \(\$ 25.48\). Find the percent increase.

Annual student fees at the University of California rose from about \(\$ 4,000\) in 2000 to about \(\$ 12,000\) in 2010 . Find the percent increase.

The price of a share of one stock rose from \(\$ 12.50\) to \(\$ 50\). Find the percent increase.

According to Time magazine annual \(\quad\) global seafood consumption rose from 22 pounds per person in the \(1960 \mathrm{~s}\) to 38 pounds per person in 2011 . Find the percent increase. (Round to the nearest tenth of a percent.)

In one month, the median home price in the Northeast rose from \(\$ 225,400\) to \(\$ 241,500\). Find the percent increase. (Round to the nearest tenth of a percent.

A grocery store reduced the price of a loaf of bread from \(\$ 2.80\) to \(\$ 2.73\). Find the percent decrease.

The price of a share of one stock fell from \(\$ 8.75\) to \(\$ 8.54 .\) Find the percent decrease.

Hernando's salary was \(\$ 49,500\) last year. This year his salary was cut to \(\$ 44,055\). Find the percent decrease.

In 10 years, the population of Detroit fell from 950,000 to about 712,500 . Find the percent decrease.

In 1 month, the median home price in the West fell from \(\$ 203,400\) to \(\$ 192,300\). Find the percent decrease. (Round to the nearest tenth of a percent.)

Sales of video games and consoles fell from \$1,150 million to \(\$ 1,030\) million in 1 year. Find the percent decrease. (Round to the nearest tenth of a percent.)

Kenneth loaned his niece \(\$ 1,200\) to buy a computer. Two years later, she paid him back the \(\$ 1,200\), plus \(\$ 96\) interest. What was the rate of interest?

Lebron loaned his daughter \(\$ 20,000\) to help her buy a condominium. When she sold the condominium four years later, she paid him the \(\$ 20,000,\) plus \(\$ 3,000\) interest. What was the rate of interest?

Pablo borrowed \(\$ 50,000\) to start a business. Three years later, he repaid the \(\$ 50,000,\) plus \(\$ 9,375\) interest. What was the rate of interest?

In 10 years, a bank account that paid 5.25\% earned \(\$ 18,375\) interest. What was the principal of the account?

Sophie saw a dress she liked on sale for \(\$ 15\) off. The original price of the dress was \(\$ 96\).

Angelo's store is having a sale on televisions. One television, with original price \(\$ 859,\) is selling for \(\$ 125\) off.

Erys bought a treadmill on sale at \(35 \%\) off. The original price was \(\$ 949.95\) (round to the nearest cent.)

Nikki bought a patio set on sale for \(\$ 480\). The original price was \(\$ 850\). To the nearest tenth of a percent, what was the rate of discount?

Stella bought a dinette set on sale for \(\$ 725\). The original price was \(\$ 1,299 .\) To the nearest tenth of a percent, what was the rate of discount?

Leaving a Tip At the campus coffee cart, a medium coffee costs \$1.65. MaryAnne brings \(\$ 2.00\) with her when she buys a cup of coffee and leaves the change as a tip. What percent tip does she leave?

Splitting a Bill Four friends went out to lunch and the bill came to \(\$ 53.75 .\) They decided to add enough tip to make a total of \(\$ 64,\) so that they could easily split the bill evenly among themselves. What percent tip did they leave?

Without solving the problem "44 is \(80 \%\) of what number" think about what the solution might be. Should it be a number that is greater than 44 or less than 44? Explain your reasoning.

Without solving the problem "What is \(20 \%\) of 300?" think about what the solution might be. Should it be a number that is greater than 300 or less than 300 ? Explain your reasoning.

After returning from vacation, Alex said he should have packed \(50 \%\) fewer shorts and \(200 \%\) more shirts. Explain what Alex meant.

Because of road construction in one city, commuters were advised to plan that their Monday morning commute would take \(150 \%\) of their usual commuting time. Explain what this means.

Jaime has \(\$ 2.60\) in dimes and nickels. The number of dimes is 14 more than the number of nickels. How many of each coin does he have?

Lee has \(\$ 1.75\) in dimes and nickels. The number of nickels is 11 more than the number of dimes. How many of each coin does he have?

Ngo has a collection of dimes and quarters with a total value of \(\$ 3.50\). The number of dimes is seven more than the number of quarters. How many of each coin does he have?

A cash box of \(\$ 1\) and \(\$ 5\) bills is worth \(\$ 45 .\) The number of \(\$ 1\) bills is three more than the number of \(\$ 5\) bills. How many of each bill does it contain?

Joe's wallet contains \(\$ 1\) and \(\$ 5\) bills worth \(\$ 47\). The number of \(\$ 1\) bills is five more than the number of \(\$ 5\) bills. How many of each bill does he have?

Rachelle has \(\$ 6.30\) in nickels and quarters in her coin purse. The number of nickels is twice the number of quarters. How many coins of each type does she have?

Deloise has \(\$ 1.20\) in pennies and nickels in a jar on her desk. The number of pennies is three times the number of nickels. How many coins of each type does she have?

Harrison has \(\$ 9.30\) in his coin collection, all in pennies and dimes. The number of dimes is three times the number of pennies. How many coins of each type does he have?

Ivan has \(\$ 8.75\) in nickels and quarters in his desk drawer. The number of nickels is twice the number of quarters. How many coins of each type does he have?

In a cash drawer there is \(\$ 125\) in \(\$ 5\) and \(\$ 10\) bills. The number of \(\$ 10\) bills is twice the number of \(\$ 5\) bills. How many of each are in the drawer?

John has \(\$ 175\) in \(\$ 5\) and \(\$ 10\) bills in his drawer. The number of \(\$ 5\) bills is three times the number of \(\$ 10\) bills. How many of each are in the drawer?

Carolyn has \(\$ 2.55\) in her purse in nickels and dimes. The number of nickels is nine less than three times the number of dimes. Find the number of each type of coin.

Julio has \(\$ 2.75\) in his pocket in nickels and dimes. The number of dimes is 10 less than twice the number of nickels. Find the number of each type of coin.

Chi has \(\$ 11.30\) in dimes and quarters. The number of dimes is three more than three times the number of quarters. How many of each are there?

Tyler has \(\$ 9.70\) in dimes and quarters. The number of quarters is eight more than four times the number of dimes. How many of each coin does he have?

Mukul has \(\$ 3.75\) in quarters, dimes and nickels in his pocket. He has five more dimes than quarters and nine more nickels than quarters. How many of each coin are in his pocket?

Vina has \(\$ 4.70\) in quarters, dimes and nickels in her purse. She has eight more dimes than quarters and six more nickels than quarters. How many of each coin are in her purse?

The school play sold \(\$ 550\) in tickets one night. The number of \(\$ 8\) adult tickets was 10 less than twice the number of \(\$ 5\) child tickets. How many of each ticket were sold?

If the number of \(\$ 8\) child tickets is seventeen less than three times the number of \(\$ 12\) adult tickets and the theater took in \(\$ 584,\) how many of each ticket were sold?

The movie theater took in \(\$ 1,220\) one Monday night. The number of \(\$ 7\) child tickets was ten more than twice the number of \(\$ 9\) adult tickets. How many of each were sold?