Question

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for parts (a) and (b) below, choose the correct description.
fill in the blanks as necessary.

(a) a train travels from city a to city b. the table below shows the distance and the amount of time it takes on the train.

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$$\begin{tabular}{|l|c|c|c|} \\hline distance (in kilometers) & 6 & 12 & 14 \\\\ \\hline time (in minutes) & 2 & 4 & 7 \\\\ \\hline \\end{tabular}$$

choose the correct description.

• the train does not always go the same distance each minute.
• the train appears to go the same distance each minute.

predicted amount of time to travel 27 kilometers: minutes

(b) shen is deciding how many people to take to the movies. the table below shows the cost for different sized groups of people.

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$$\begin{tabular}{|l|c|c|c|} \\hline number in group & 2 & 6 & 7 \\\\ \\hline cost (in dollars) & 16 & 48 & 56 \\\\ \\hline \\end{tabular}$$

choose the correct description.

• the cost for each person is not always the same.
• the cost for each person appears to be the same.

predicted cost for 9 people: $ $

Explanation:

Analyze part (a) ratios

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Analyze part (b) ratios

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Answer:

Question 1

For part (a):

• The train does not always go the same distance each minute. (Correct answer)
• The train appears to go the same distance each minute.

Question 2

For part (b):

• The cost for each person is not always the same.
• The cost for each person appears to be the same. (Correct answer)

Predicted cost for 9 people: <blank>\$72</blank>