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English 19 Public

Math questions to help us review for test 5

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The number of students in four classrooms is 30, 27, 29, and 30. What is the mean number of students in the four classrooms?

30 studens

Sam ran and jumped three times. The lengths of his jumps were 4.25m, 3.96m, and 4.76m. His longest jump was how much longer than his shortest jump?

0.8m

There are 16 girls and 8 boys in a classroom. What fraction of the students are girls?

2/3

Maddie started driving at 9am. By noon she had traveled 150 miles. What was her average speed?

50 mph

Expand: 4(x+2)

4x + 8

Compare:

Arrange these numbers from least to greatest: 1.2, 0, 0.12, 1/2, , -1/2

-1/2, 0, 0.12, 1/2, 1, 1.2

What is the measure of angle a?

66 degrees

What is the area of a triangle with vertices at (0,0), (0,5), and (4,0)?

10 units squared

Find the perimeter of this triangle.

12in

Follow the order of operations to simplify this expression: 30 - [20 - 10(4 - 3)]

Express in exponential form:

x^2 y^3 / z^5

Find 1/2bh when b=16 and h=8.

Solve for x: 70 = 3x + 10

x=20

Solve for x: 1 - x = 3/7

x = 4/7

Simplify

3/10