3.4 - Scaling Proportional Relationships Test Review (Part II)

A nationwide survey of middle school students was conducted to determine whether or not talking or texting on a cell phone can be a distraction. A total of 42,000 cell phone owners were surveyed and of those surveyed it showed that 8,670 had someone who was talking or texting walk into them.

If 208 Hamlin Middle Schoolers were surveyed, how many​ of them will have someone who was talking or texting walk into them.

(a)  

Tags

CCSS.7.RP.A.3

After a new process of producing a computer chip was introduced at a manufacturing plant, a random sample of 720 of the computer chips showed that 6 of the chips had a defect.

If 150,000 computer chips are manufactured, how many do you expect to be defective?

(a)  

Tags

CCSS.7.RP.A.3

The pie chart shows the percentage of sales for each item at a local bakery. The results are based on the results of 4,560 customers. I predict the number of people who bought tea would be...

(a)  

Tags

CCSS.6.RP.A.3C

A deck of cards consists of 80 cards divided into 8 different sets of colors and each color has cards numbered 1 to 10. The colors are red, blue, green, yellow, orange, purple, pink, and white. The table shows the results from a simulation of drawing a random card from the deck, where each tally mark represents one occurrence.

Based on the simulation, what is the probability of drawing a white card?

*write your answer as a fraction

(a)  

Tags

CCSS.7.SP.C.8C

Using the probability of drawing a white card, how many times would you predict a white card to be drawn when the total number of cards drawn is 168?

(a)  

Tags

CCSS.6.RP.A.3B

Jordan has images of both a scale drawing (on the left) and a game board (on the right) where some of the measurements are shown on the game board drawing.

What a scale factor that can be used to determine the perimeter of the game board?

*type your answer as a fraction or whole number

(a)  

Tags

CCSS.7.G.A.1

What is the perimeter of the shape labeled T?

(a)  

Tags

CCSS.3.MD.D.8

Tags

CCSS.6.RP.A.3B

Tags

CCSS.7.G.A.1

Each participant in the Santos Fat Tire Festival in Ocala rides 50 miles of mountain bike trails. The map uses a scale where 1 inch represents 0.8 miles. What is the length, in inches, of the mountain bike trails on the map?

(a)  

Tags

CCSS.6.RP.A.3B