COMPUTER LAB 1-9-15

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1 point

Solve 3x = 18.

1 point

Find the least common multiple of 18 and 24.

432

216

1 point

15% of 240 is what number?

1 point

Find 87.85 ÷ 3.5

0.251

251

25.1

2.51

1 point

Which operation should be done first when evaluating 15 – 5 ÷ 3 + 2 - 1?

multiplication

subtraction

division

addition

1 point

What is the greatest common factor of 36, 54, and 90.

1 point

Use the factor tree to write the prime factorization of 120.
A. B.
C. D.

2 × 2 × 3 × 5

2 × 2 × 2 × 3 × 5

2 × 60

2 × 3 × 5

1 point

Rachel and Diego both jog regularly. Rachel jogs every other day, and Diego jogs every third day. They both jogged today. How many days will it be before they both jog on the same day again?

1 point

Write 4 times k, increased by 9, is 45 as an algebraic equation.

4k = 45

4k + 9 = 45

k + 9 = 45

9k + 4 = 45

10.

1 point

Evaluate 60 ÷ 12 + 2(13 - 7).

2.5

11.

1 point

A full tank of gasoline costs $41.40. If the car has a 12-gallon tank, approximately how much does a gallon of gasoline cost?

$3.45

$3.54

$3.48

$2.88

12.

1 point

Andrea is making goody bags with bouncy balls and candy. The candy comes in packages of 12 and the bouncy balls come in packages of 33. She wants an equal amount of each in each bag. What is the greatest number of each in each bag?

13.

1 point

Multiply 0.032 × 2.1.

0.064

672

0.0672

0.672

14.

1 point

Which number is not a factor of 315?

15.

1 point

Evaluate 27 ÷ 3 · 3 + 5.

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