2.2,2.12-2.15 Quiz Review

Apples

100

What is the difference between a mean and a weighted mean?

A weighted mean has different weights or categories that make values have more importance than others.

200

Find the weighted mean of these values: 

25% weight: 100%

50% weight: 40%

25% weight: 85%

66.25%

300

Find the mean of these values assuming the first five values are each worth 10% and the last value is worth 50%: 2, 6, 10, 14, 20, 32

Round to the nearest tenth.

28.4

400

Your first semester of college you went to school part time.

Statistics was 4 credit hours and you got a 3.0 GPA. Biology was 6 credit hours and you got a 2.5 GPA. Dance was 2 credit hour and you got a 4.0.       What is your GPA for the semester? Round to the nearest tenth.

2.9 

500

You want to end the semester with a 90% in Transitional Math. What do you need to get on your final exam? 

Quizzes(25% weight): 78, 90, 50

Exams (35% weight): 70, 75, 89

Projects (25% weight): 100, 100, 50

Final (15% weight): __________

Round your answer to the nearest percent.

158% :( 

You are not getting that 90% :( 

Banana

100

Solve. 3x + 4 - 2x = 14 - 15

x = -5 

200

Solve. 4(x - 5) = 3.5x 

x = 40

300

4(x - 4) = 3³- (27 + 2) 

x = 3.5 or 7/2

400

2(x + 3) -(x² + 4) = -x² + 5x 

Write your answer as a fraction.

x = 2/3 or 0.666667

500

(1/4)(x - 2) = (-3/4)x -3(x -2)

x = 1.625

Carrot

100

8.25% tax on a $15 t-shirt is how much money?

Round to the nearest cent.

$1.24

200

You go the Chipotle and buy a Carnitas burrito for $6.25 and you add a side of queso dip for $2.50. Tax is 8.5%. How much will you spend at chipotle? 

Round to the nearest cent.

$9.49

300

You spend $13 on a meal. There is a 8.25% tax and you want to leave a 10% tip. How much will you pay after tax and tip?

Round to the nearest cent.

$15.37

400

You have $200 to spend on shoes. Tax is 10% and shipping is a flat fee of $30. Each pair of shoes costs $75. How many pairs of shoes can you buy? 

2 pairs

500

You go to dinner with $15 in your pocket. Tax is 8.25% and you want to leave a 15% tip on the bill after tax. How much money can you spend on dinner?

Round your answer to the nearest cent.

$12.04

Dikaon

100

Apples are $0.25 per apple. How much is 8 apples?

$2

200

You have been driving for 54 miles and you have used 3 gallons of gas. How many miles do you get per gallon? 

18 miles per gallon

300

Solve. Round to the hundredth spot.

   4         10
------ = --------
 3 - x     2 + x 

4(2 + x) = 10( 3 - x) 

8 + 4x = 30 - 10x 

14x = 22 

x = 1.57

400

You are buying tickets for a concert and you get 4 tickets for $246. How much is 3 tickets? 

$184.50

500

In a video game, you can get $200 coins for $0.25. You need 1,240 coins to get a new avatar. How much money would you have to spend?

$1.55

Eggs

100

Write the Pythagorean Theorem. 

a² + b² = c²

200

In the theorem a² + b² = c² 

What must be true about c?

It is the largest side of the triangle. 

It is the biggest number. 

It is the hypotenuse. 

300

Given side lengths (32, 48, 24)  determine if this creates a right triangle.

This does NOT create a right triangle. You get

32² + 24² = 48² 

1600 = 2304 which is FALSE

400

Find the missing side length if a = 12 and c = 20. 

b = 16

500

Create and prove a Pythagorean triple. 

Must show math to get the points.

Example: 3,4,5 

3² + 4² = 5²

9 + 16 = 25

25 = 25 therefore side lengths 3, 4, and 5 make a right triangle.