Math SC 7 Mini Final Review

If the probability of choosing a green marble is ⁸/₁₇ what is the probability of not choosing a green marble?

• 9/17

• 2/17

• 92/100

• 1/34

Simplify 11x + 2 + 9x - 4

• 20x + 6

• 20x - 6

• 2x - 2

• 20x - 2

An architect uses a ratio of 1 inch = 350 feet. If a building measures 4.5 inches tall in the blueprint, what is the building's actual height?

• 78 feet

• 1250 feet

• 900 feet

• 1575 feet

Mary purchased a couch for $1725. There was a 15% sales tax. Find the final cost.

• $258.75

• $1,466.25

• $1,638.75

• $1,983.75

To make lemonade, Andy adds 8 tablespoons of sugar for every 12 ounces of water. If he uses 32 ounces of water, which proportion can he use to find the number of tablespoons of sugar, x, he should add to make the lemonade?

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What is the solution of 2x + 4 < 10

• x < 7

• x < 3

• x < 6

• x < 5

Kevin can travel 24 ³/₄ miles in ¹/₃ hour. What is his average speed in miles per hour?

• 74.25 mph

• 67.5 mph

• 68 mph

• 70 mph

Solve for x: 2x + x + 1 = -11

• -36

• -4

• -3

• -30