6.5 Solve proportions and their applications  (Page 9/12)

Hilda bought a bedspread on sale for $\text{\$37}.$ The original price of the bedspread was $\text{\$50}.$

Tyler bought a phone on sale for $\text{\$49.99}.$ The original price of the phone was $\text{\$79.99}.$

Manny paid $\text{\$0.80}$ a pound for apples. He added $\text{60\%}$ mark-up before selling them at his produce stand. What price did he charge for the apples?

It cost Noelle $\text{\$17.40}$ for the materials she used to make a purse. She added a $\text{325\%}$ mark-up before selling it at her friend’s store. What price did she ask for the purse?

Find the simple interest earned after $4$ years on $\text{\$2,250}$ invested at an interest rate of $\text{5\%}.$

Find the simple interest earned after $7$ years on $\text{\$12,000}$ invested at an interest rate of $\text{8.5\%}.$

Find the principal invested if $\text{\$660}$ interest was earned in $5$ years at an interest rate of $\text{3\%}.$

Find the interest rate if $\text{\$2,898}$ interest was earned from a principal of $\text{\$23,000}$ invested for $3$ years.

Kazuo deposited $\text{\$10,000}$ in a bank account with interest rate $\text{4.5\%}.$ How much interest was earned in $2$ years?

Brent invested $\text{\$23,000}$ in a friend’s business. In $5$ years the friend paid him the $\text{\$23,000}$ plus $\text{\$9,200}$ interest. What was the rate of interest?

Fresia lent her son $\text{\$5,000}$ for college expenses. Three years later he repaid her the $\text{\$5,000}$ plus $\text{\$375}$ interest. What was the rate of interest?

In $6$ years, a bond that paid $\text{5.5\%}$ earned $\text{\$594}$ interest. What was the principal of the bond?

$3$ is to $8$ as $12$ is to $32.$

$95$ miles to $3$ gallons is the same as $475$ miles to $15$ gallons.

$1$ teacher to $18$ students is the same as $23$ teachers to $414$ students.

$\text{\$7.35}$ for $15$ ounces is the same as $\text{\$2.94}$ for $6$ ounces.

$\frac{5}{13}=\frac{30}{78}$

$\frac{16}{7}=\frac{48}{23}$

$\frac{12}{18}=\frac{6.99}{10.99}$

$\frac{11.6}{9.2}=\frac{37.12}{29.44}$

$\frac{x}{36}=\frac{5}{9}$

$\frac{7}{a}=\frac{\mathrm{-6}}{84}$

$\frac{1.2}{1.8}=\frac{d}{6}$

$\frac{\frac{1}{2}}{2}=\frac{m}{20}$

The children’s dosage of acetaminophen is $5$ milliliters (ml) for every $25$ pounds of a child’s weight. How many milliliters of acetaminophen will be prescribed for a $60$ pound child?

After a workout, Dennis takes his pulse for $10$ sec and counts $21$ beats. How many beats per minute is this?

An $8$ ounce serving of ice cream has $272$ calories. If Lavonne eats $10$ ounces of ice cream, how many calories does she get?

Alma is going to Europe and wants to exchange $\text{\$1,200}$ into Euros. If each dollar is $0.75$ Euros, how many Euros will Alma get?

Zack wants to drive from Omaha to Denver, a distance of $494$ miles. If his car gets $38$ miles to the gallon, how many gallons of gas will Zack need to get to Denver?

Teresa is planning a party for $100$ people. Each gallon of punch will serve $18$ people. How many gallons of punch will she need?

What number is $\text{62\%}$ of $395?$

$42$ is $\text{70\%}$ of what number?

What percent of $\mathrm{1,000}$ is $15?$

What percent of $140$ is $210?$

What number is $\text{85\%}$ of $900?$

$\text{6\%}$ of what number is $\text{\$24}?$

$\text{\$3.51}$ is $\text{4.5\%}$ of what number?

What percent of $\mathrm{3,100}$ is $930?$

$\text{24\%}$

$\text{5\%}$

$\text{350\%}$

$\frac{7}{8}$

$\frac{1}{3}$

$\frac{11}{12}$

$65$ is what percent of $260?$

What number is $\text{27\%}$ of $\mathrm{3,000}?$

$\text{150\%}$ of what number is $60?$

Yuki’s monthly paycheck is $\text{\$3,825}.$ She pays $\text{\$918}$ for rent. What percent of her paycheck goes to rent?

The total number of vehicles on one freeway dropped from $\text{84,000}$ to $\text{74,000}.$ Find the percent decrease (round to the nearest tenth of a percent).

Kyle bought a bicycle in Denver where the sales tax was $\text{7.72\%}$ of the purchase price. The purchase price of the bicycle was $\text{\$600}.$ What was the total cost?

Mara received $\text{\$31.80}$ commission when she sold a $\text{\$795}$ suit. What was her rate of commission?

Kiyoshi bought a television set on sale for $\text{\$899}.$ The original price was $\text{\$1,200}.$ Find:

1. ⓐ the amount of discount
2. ⓑ the discount rate (round to the nearest tenth of a percent)

Oxana bought a dresser at a garage sale for $\text{\$20}.$ She refinished it, then added a $\text{250\%}$ markup before advertising it for sale. What price did she ask for the dresser?

Find the simple interest earned after $5$ years on $\text{\$3000}$ invested at an interest rate of $\text{4.2\%}.$

Brenda borrowed $\text{\$400}$ from her brother. Two years later, she repaid the $\text{\$400}$ plus $\text{\$50}$ interest. What was the rate of interest?

Write as a proportion: $4$ gallons to $144$ miles is the same as $10$ gallons to $360$ miles.

Solve for a: $\frac{12}{a}=\frac{\mathrm{-15}}{65}$

Vin read $10$ pages of a book in $12$ minutes. At that rate, how long will it take him to read $35$ pages?