SAT Math Videos – Part 9 (No Calculator)

Problem 1 :At a movie theatre, an adult ticket costs $10 and a bag of popcorn costs $6. If a group of adults bought tickets to a movie and 4 bags of popcorn, what expression could be used to determine how much in total the group spent, in dollars?
A)  10x + 6, where x is the number of adults
B)  10x + 24, where x is the number of adults
C)  16x, where x is the number of adults
D) 6x + 10, where x is the number of bags of popcorn purchasedSolution :

Problem 2 :

In the figure above AB = AC and c = 50°. What is the value of a?
A)  65B)  70C)  75D)  80Solution :

Problem 3 :Barbara has x dolls in her doll collection. If Barbara has half as many dolls as Tanya does and Tanya has y dolls, which of the following equations must be true?

A)  y = x + 2
B)  y = ½x
C)  y = 2x
D)  xy = 2Solution :

Problem 4 :What is the sum of the solutions tp 2×2 – 6x + 2 = 0?
A)  -3B)  -1C)  1D)  3Solution :

Problem 5 :Let the function f be defined by f(x) = 2×3 – 1 and let the function g be defined by g(x) = x2 + 3, what is the value of f[g(1)]?
A)  4B)  23C)  56D)  127Solution :

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