ParaPro Core Plus (Math Version 4

Question 1

A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of randomly picking a blue marble?

Accepted Answer

3/10

Answer

P(blue) = 3 blue / 10 total = 3/10.

Question 2

Which expression is equivalent to 4(x + 3) − 2x?

Accepted Answer

2x + 12

Answer

Distribute: 4x + 12 − 2x = 2x + 12.

Question 3

A triangle has angles measuring 45°, 90°, and x°. What is the value of x?

Accepted Answer

45

Answer

The sum of angles in a triangle is 180°, so x = 180 − 45 − 90 = 45.

Question 4

Convert 0.375 to a fraction in simplest form.

Accepted Answer

3/8

Answer

0.375 = 375/1000, which simplifies to 3/8 by dividing by 125.

Question 5

A recipe calls for 2½ cups of flour. If you want to make 3 batches, how many cups of flour do you need?

Accepted Answer

7½

Answer

2½ × 3 = 5/2 × 3 = 15/2 = 7½ cups.

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