Mathardy

Linear

100

A number is equal to 4 times this number less 75. What is the number?

x = 25

200

A number is equal to 7 times itself minus 18. Which is the number?

x=3

300

What is the y-intercept?

y = 90/125x - 78

-78

Quadratics

100

Solve for x.

64x² + 24x - 10 = 0

1/4 and -5/8

200

Solve.

(x+9)(x-16)

x² - 7x -144

300

Solve.

(2x - 6)(x - 2)

2x² - 10x + 12

Statistics

100

This paragraph summarizes the number of left-handed students and right-handed students by gender for the eighth grade students at Keisel Middle School. There are 5 times as many right-handed female students as there are left-handed female students, and there are 9 times as many right-handed male students as there are left-handed male students. if there is a total of 18 left-handed students and 122 right-handed students in the school, which of the following is closest to the probability that a right-handed student selected at random is female? (Note: Assume that none of the eighth-grade students are both right-handed and left-handed.)

0.410

200

The class average in a class of 15 is 86%. If one additional student earns a 100% in the class, what is the new class average.

86.875%

300

What is the mean of the following numbers?

88,99,31,47,68,27

 

60

Random

100

C= 5/9(F−32)

The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?

1. A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of 5/9 degree Celsius.
2. A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit.
3. A temperature increase of 5/9 degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius.

A) 1 only
B) 2 only
C) 3 only
D) 1 and 2 only

D

200

8x + 5

8x + 5

300

What do geometry teachers have decorating their floors?

Area rugs