4.4.1 Unit 4 Review

In a bag of marbles, there are 4 blue marbles and 2 red marbles. Which of the following statement is true if the bag has 6 marbles in total? (Find the relationship between the red and blue marbles in the bag.)

A certain parking lot has only red cars and blue cars. There are 50 cars in a certain parking lot. There are 2 green cars for every 3 blue cars. How many of the cars are green?

James can type 300 words in 6 minutes. On average, how fast does James type?

Maddy and Charlie are walking from their homes to a large park. - Maddy walks 2.5 miles in 45 minutes at a steady pace. - Charlie walks 3 miles in 54 minutes at a steady pace. Which statement accurately compares their walking rates?

To make fresh orange juice, a shopper can buy 3 pounds oranges for $7.50 per pound. What equation relates the cost, y, and the pounds of oranges, x?

The equation m = 15t + 10 represents the money earned, m,

for babysitting t hours with an extra tip.

Is this scenario proportional or nonproportional?

The equation y = 5x + 3 represents the number of dollars, y,

spent on x gallons of milk plus a snack bar.

Is this scenario proportional or nonproportional?

The equation d = 35t represents the distance, d, a car travels for t miles.

Is this scenario proportional or nonproportional?

The equation w = 4x represents the number of wheels, w, in x number of cars.

Is this scenario proportional or nonproportional?

Solve the proportion for x: $$\frac{2}{9}=\frac{12}{x}$$

A model train has dimensions that are proportional to a real train. - The height of the real train is 20 feet. - The height of the model train is 2 inches. - The length of the real train is 80 feet. The unit used for the real train is in feet, and the unit for the model train is in inches. What is the length of the model train?

55 is what percent of 104?

The original cost of a dress is $120. If you get a discount of 20%, how much will the dress cost after the discount is applied?

Melinda went to a restaurant with her friends where the bill was $80. She is leaving the server a 20% tip. What are the tips and the total that includes both the bill and tips?