SAT MATH VIDEOS - Part 3
(Calculator)

Problem 1 :

Before a big test, James memorized 10 percent more words than Zach. Zach memorized 30 percent more words than Amy. If Amy memorized a words, how many words did James memorize in terms of a?

Solution :

Problem 2 :

satcircles1.png

A certain pizza restaurant cuts slices out at every 4 inches along the edge of a pizza, as shown in the figure above. What is the maximum number of full pizza slices that can be cut out from a circular pizza with a radius of 10 inches?

(A)  -4

(B)  0

(C)  1

(D)  2

Solution :

Problem 3 :

satprobability1a.png

The table above shows the distribution of age and social media presence for 720 employees at a company, If an employee who uses social media is selected at random, what is the probability the employee is age 30 or older?

Solution :

Problem 4 :

The function f is defined by f(x) = x2 + bx + c, where b and c are constants. If the graph of f has x-intercepts at -5 and 3, which of the following correctly gives the values of b and c?

(A) b = -5 and c = 3

(B) b = -3 and c = 5

(C) b = -2 and c = -15

(D) b = 2 and c = -15

Solution :

Problem 5 :

In the xy-plane, the line y = mx + b, where m and b are cosntants, is a reflection of line l across the y-axis. At which of the following points do the two lines intersect?

(A) (0, b)

(B) (0, -b)

(C) (0, m)

(D) (m, 0)

Solution :

You might like these

SAT Math Videos (Part - 1)

SAT Math Videos (Part - 2)

SAT Math Videos (Part - 3)

SAT Math Videos (Part - 4)

SAT Math Videos (Part - 5)

SAT Math Videos (Part - 6)

SAT Math Videos (Part - 7)

SAT Math Videos (Part - 8)

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