If , then y=
So far, a student has earned the following scores on four 100-point tests this grading period:65,73,81, and 82. What score must the student earn on the fifth and last 100-point test of the grading period to earn an average test grade of 80 for the 5 tests?
(A) 75 (B) 76 (C) 78 (D) 99 (E) The student cannot earn an average of 80.
Correct Answer: D
If a is a factor of 32 and b is a factor of 45, the product of a and b could NOT be which of the following?
(F) 1,440(G) 288(H) 80(J) 54(K) 1
Correct Answer: J
In the following figure, the circle centered at nhas a radius of 4. What is the area of the shaded region?
(A) 3π(B) 6π(C) 9π(D) 12π(E) 16π
Correct Answer: D
More ACT Math Exam Questions
- 1If the values of s and t are directly proportional and s = 8 when t = 10, then what is the value of s when t = 15 ?
Lisa has 5 fiction books and 7 nonfiction books on a table by her front door. As she rushes out the door one day, she takes a book at random. What is the probability that the book she takes is fiction?
- 3A size 8 dress that usually sells for $60 is on sale for 30% off. Victoria has a store credit card that entitles her to an additional 10% off the reduced price of any item in the store. Excluding sales tax, what is the price Victoria pays for the dress?
- 4In ΔXYZ below, the length of XY is 12 centimeters. How long is YZ, to the nearest tenth of a centimeter? (Note: The law of sines states that in ΔABC with sides length a, b, and c opposite ∠A, ∠B, and ∠C, respectively, .) (Note: sin53° ≈ 0.799, sin59° ≈ 0.857, sin68° ≈ 0.927)
- 5In the standard (x, y) coordinate plane, the midpoint of is (5, 7) and a is located at (2, 3). If the coordinates of b are (x, y), what is the value of (x + y)?