7th Math Midterm Review Quiz

An architect built a scale model of a sports arena using a scale in which 1 inch represents 30 feet. The height of the sports arena is 120 feet. What is the height of the scale model in inches?

• 4 inches

• 45 inches

• 40 inches

• 60 inches

Which of the given representations has the same rate of change as the equation y = 5x ?

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Triangle JKL is similar to triangle WXY. What is the side length of m in centimeters?

• 24 cm

• 18 cm

• 28 cm

• 15 cm

Tags

TEKS.MATH.7.5A

TEKS.MATH.8.3A

TEKS.MATH.G.7A

The table shows the number of attendees at the Irons Fall dance over the past three years. What is the percent change in attendees from 2018 to 2019?

• 60% increase in attendees

• 25% increase in attendees

• 30% increase in attendees

• 50% increase in attendees

Davids’s brother gave him his baseball card collection of 20 cards. He plans to add 30 cards to the collection each month. Which table represents y, the total number of cards in David’s collection x months after receiving the cards?

• A.

  x, months | y, total cards

  0 | 20

  1 | 50

  2 | 80

  3 | 110

• B.

  x, months | y, total cards

  1 | 30

  2 | 60

  3 | 90

  4 | 120

• C.

  x, months | y, total cards

  1 | 70

  2 | 110

  3 | 150

  4 | 190

• D.

  x, months | y, total cards

  0 | 0

  1 | 40

  2 | 80

  3 | 120

Which of the given situations have a unit rate of 4? Select TWO correct answers.

• Sam paid $6.00 for 1.5 pounds of apples.

• In 2 hours, a mouse traveled 6 miles.

• Jorge earned $160 for 4 hours of work.

• There are 40 people sitting at 10 tables.

Mr. King works for a bakery company loading trucks with baked goods. He is able to load 18 trucks in 2 hours. Write an equation in slope-intercept form that represents y, the total number of trucks Mr. King can load in x hours if he continues at this rate. (hint: y=mx)

A college information pamphlet provides some statistics about the students and the professors to help high school seniors decide if they want to attend the college. The pamphlet lists the ratio of students to professors as 22 to 1. If there are 1320 students at the college, how many professors are there? Enter your answer in the box.

A line is graphed on the coordinate plane as shown. Write an equation that best represents the relationship between x and y on the graph. Choose the correct answer from each drop-down menu to complete the statement. (hint: y=mx+b)

• y = 2/3x - 1

• y = 2/3x + 1

• y = -2/3x - 1

• y = -1/3x + 1

• y = 3/2x - 1

A figure skater spins 12 revolutions in 3 seconds. Choose the graph that represents y, the number of revolutions the skater makes in x seconds.

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