SAT MATH PRACTICE VIDEOS
(Part - 1)

Problem 1 :

If (x - 1)/3 = k and k = 3, what is the value of x?

A)  2

B)  4

C)  9

D)  10

Solution :

Problem 2 :

For √-1 = -1 , what is the sum (7 + 3i) + (−8 + 9i) ?

A)  -1 + 12i

B)  -1 − 6i

C)  15 + 12i

D)  15 - 6i

Solution :

Problem 3 :

On Saturday afternoon, Armand sent m text messages each hour for 5 hours, and Tyrone sent p text messages each hour for 4 hours. Which of the following represents the total number of messages sent by Armand and Tyrone on Saturday afternoon?

A)  9mp

B)  20mp

C)  5m + 4p

D)  4m + 5p

Problem 4 :

Kathy is a repair technician for a phone company. Each week, she receives a batch of phones that need repairs. The number of phones that she has left to fix at the end of each day can be estimated with the equation

P = 108 - 23d,

where P is the number of phones left and d is the number of days she has worked that week. What is the meaning of the value 108 in this equation?

A)  Kathy will complete the repairs within 108 days.

B)  Kathy starts each week with 108 phones to fix.

C)  Kathy repairs phones at a rate of 108 per hour.

D)  Kathy repairs phones at a rate of 108 per day.

Problem 5 :

(x²y - 3y² + 5xy²) - (-xy² + 3xy² - 3y²)

Which of the following is equivalent to the expression above?

A)  4x²y²

B)  8xy² - 6y²

C)  2x²y + 2xy²

D)  2x²y + 8xy² -6y²

Solution :

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