ACT-Math 試験問題を無料オンラインアクセス

Laura plans to paint the 8-foot-high rectangular walls of her room, and before she buys paint she needs to know the area of the wall surface to be painted. Two walls are 10 feet wide, and the other 2 walls are 15 feet wide. The combined area of the 1 window and the 1 door in her room is 60 square feet.
What is the area, in square feet, of the wall surface Laura plans to paint?

• A.390
• B.200
• C.340
• D.360
• E.400

In the diagram above, ABC and DEC are right triangles, the length of side BC is 15 units, and the measure of

is 60º.

If

is congruent to

, what is the length of side DC?

• A.15√3 units
• B.√15 units
• C.9 units
• D.15/2 × √3 units
• E.15/2 units

Which of the following equations represent the linear relationship between time, t, and velocity, v, shown in the table below?

• A.v = 32t + 120
• B.v = 32t
• C.v = 120t
• D.v = 120t + 32
• E.v = 120t + 120

A company offers early bird pricing of $15 on a new product if there are 10 or fewer orders. The price goes down to $12.50 if it is ordered by more than 10. Twenty ends up ordering at the $15 amount.
How much does the company end up offering as rebate?

• A.$75
• B.$100
• C.$50
• D.$25

The sum of 2 positive numbers is 151. The lesser number is 19 more than the square root of the greater number.
What is the value of the greater number minus the lesser number?

• A.91
• B.19
• C.121
• D.66
• E.85