Name: ______Period: ______Date: ______

Problem Solving HW- Due Friday 3-27

1. The number of people attending the first four home basketball games at Dunklin Middle School is show on the graph below.

Which statement is NOT supported by the information in the graph?

a. Approximately 1,000 people attended the first four home basketball games.

b. Approximately half as many people attended the first two games as attended all four games.

c. About 400 males and 400 females attended the first four home basketball games.

d. There were approximately 25 more people than attended the first game than attended the fourth game.

2. In the triangle below, angle P is congruent to angle R. Angle P is 30°.

Q

P R

What is the measure of angle Q?

a.  120° c. 30°

b.  90° d. 150°

3. Angel wants to draw a right triangle. What must be the measures of the three angles?

a.  45°, 90°, 45°

b.  90°, 60°, 40°

c.  60°, 60°, 60°

d.  90°, 10°, 70°

4. The drawing below shows the shape of a corner lot.

Y

30°

Find the measure of angle Y.

a.  90° c. 70°

b.  80° d. 60°

5. Look at the model below.

What percent of the model is shaded?

What fraction of the model is NOT shaded?

Use the information below to answer questions 6-8.

Rodney has earned the following grades.

Math: 80, 90, 75, 80, 100

Science: 75, 80, 65, 85, 90, 85

English: 100, 95, 100, 55, 90, 100

6. The data for which subject best matches the measures of center and spread show below?

Mean = 80

Median = 82.5

Range = 25

IQR = 10

7. Calculate the values for the measures of spread for Rodney’s English grades.

Range ______IQR ______

Which measure is best used to describe the spread of the data for Rodney’s English grades? Explain.

8. What range of values describes the middle 50% of Rodney’s grades in math?

9. A shark swims at a depth of 275 feet below sea level. After sighting a whale, the shark moves 190 feet closer to the surface. What integer represents the shark’s new depth?

a. 465

b. ¯125

c. ¯85

d. 125

10. Megan paints her locker red, white, and blue. She paints 920 of the locker red, 15% of the locker white, and 0.4 of the locker blue. Complete the table below.

Fraction / Decimal / Percent
Red / 920
White / 15%
Blue / 0.4