# SAT MATH VIDEOS(Part - 9)

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 purchased

Solution :

Problem 2 :

In the figure above AB = AC and c = 50°. What is the value of a?

A)  65

B)  70

C)  75

D)  80

Solution :

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 = 2

Solution :

Problem 4 :

What is the sum of the solutions to 2x2 - 6x + 2 = 0?

A)  -3

B)  -1

C)  1

D)  3

Solution :

Problem 5 :

Let the function f be defined by f(x) = 2x3 - 1 and let the function g be defined by g(x) = x2 + 3, what is the value of f[g(1)]?

A)  4

B)  23

C)  56

D)  127

Solution :

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