9th Grade ACT - Math

2. Carmello scored a total 44 points on 9 math quizzes. What score does Carmello need on his tenth and final quiz in order to have a final quiz average of 5?

• 5
• 6
• 8
• 16
• 46

4. If a is the greatest common factor of 6, 21, and 36, and b is the lowest prime number, what is the sum of a and b?

• 4
• 5
• 7
• 253
• 254

5. Tygerrick wants to cover the floor of a room with carpet. He will need exactly 36 square yards of carpeting to cover the floor. When Tygerrick arrives at the store to purchase the carpet, he is told that he must place her order in square feet. Assuming no waste, how many square feet of carpet does Tygerrick need to order to have the exact amount necessary to cover the floor?

• 36 ft2
• 72 ft2
• 108 ft2
• 324 ft2
• 972 ft2

7. If x, y, and z are whole numbers greater than 1, and if xy3z2 = 504, what is the value of x+y−z ?

• 6
• 7
• 8
• 9
• 10

8. If 9 − 3x < 54, then which of the following must be true?

• x < 15
• x > 21
• x < 21
• x < ‒15
• x > ‒15

10. The ratio of Calhoun Tigers to Central Lions on a bus is 4 to 5. If 1 Calhoun Tiger and 2 Central Lions get off the bus, what will be the ratio of Calhoun Tigers to Central Lions on the bus?

• 5/4
• 1/1
• 1/2
• 1/3
• It cannot be determined based on the information provided

11. If 2|8 –2x| = 20, x could equal which of the following?

• –1 only
• 9 only
• –1 or 9 only
• 1 or 9 only
• 1 or ‒9 only

13. If the surface area of a cube is 294 m2, what is the volume of the cube, in meters cubed?

• 343
• 304
• 216
• 188
• 161

14. What is the area of a triangle with side lengths 30, 40, and 50 ?

• 1200
• 800
• 700
• 600
• It cannot be determined based on the information provided.

15. A chef needs 8 potatoes and 48 ounces of meat to feed 6 people. At these rates, how many potatoes and how many ounces of meat would the chef need to feed 22 people?

• 28,170
• 28.67,170.33
• 29,172
• 29.33,176
• 29.67,176.33