생활 속 백분율 단원 종합

G.1Find each unit price. Write the better buy.

1. 1
   Which is the better buy for paper towels: $5$ rolls for $\text{\$}3.40$ or $8$ rolls for $\text{\$}5.04$?
2. 2
   Which is the better buy for trail mix: $17$ oz for $\text{\$}4.59$ or $22$ oz for $\text{\$}6.16$?

G.2Answer each question.

1. 3
   A backpack costs $\text{\$}48.00$. The sales tax is $8\%$. How much is the tax?
2. 4
   A dinner bill is $\text{\$}66.00$. The family leaves a tip of $25\%$. What is the total with the tip?

G.3G.4Answer each question. (continued)

1. 5
   A backpack that costs $\text{\$}58.00$ is on sale for $20\%$ off. How much do you save?
2. 6
   A store buys a pair of headphones for $\text{\$}55.00$ and marks the price up $75\%$. How much is the markup?
3. 7
   A $\text{\$}102.00$ backpack is marked $40\%$ off. Then the store takes another $20\%$ off the sale price. What is the final price?
4. 8
   A $\text{\$}219.00$ bike is marked $40\%$ off. Then the store takes another $15\%$ off the sale price. What is the final price?

G.5Use I = Prt to answer each question.

1. 9
   You put $\text{\$}800.00$ in a savings account that earns $5\%$ simple interest each year. How much money will be in the account after $3$ years?

G.5Use I = Prt to answer each question. (continued)

1. 10
   You put $\text{\$}250.00$ in a savings account that earns $3.5\%$ simple interest each year. How much money will be in the account after $6$ years?

G.6Interest is compounded once a year. Round to the nearest cent.

1. 11
   Omar deposits $\text{\$}4,100.00$ in an account that earns $3\%$ interest compounded annually. How much interest does the account earn in $3$ years?
2. 12
   Leo deposits $\text{\$}4,400.00$ in an account that earns $5\%$ interest compounded annually. What is the balance after $2$ years?

G.7Answer each question.

1. 13
   A store buys a backpack for $\text{\$}53.00$ and marks the price up $50\%$. What is the selling price?
2. 14
   A store buys a pair of sneakers for $\text{\$}84.00$ and marks the price up $75\%$. How much is the markup?

G.1Unit Prices: Which Is the Better Buy?

1. 1$8$ rolls for $\text{\$}5.04$ ($\text{\$}0.63$ per roll)
2. 2$17$ oz for $\text{\$}4.59$ ($\text{\$}0.27$ per oz)

G.2G.3G.4Answer each question.

1. 3$\text{\$}3.84$
2. 4$\text{\$}82.50$
3. 5$\text{\$}11.60$
4. 6$\text{\$}41.25$
5. 7$\text{\$}48.96$
6. 8$\text{\$}111.69$

G.5Simple Interest

1. 9$\text{\$}920.00$
2. 10$\text{\$}302.50$

G.6Compound Interest

1. 11$\text{\$}380.18$
2. 12$\text{\$}4,851.00$

G.7Consumer Math Review

1. 13$\text{\$}79.50$
2. 14$\text{\$}63.00$