If a = 2, b = -4, and c = 0.5, then what is the value of a(b - 6c) b2c
?
(A) -1.75
(B) -1.25
(C) -0.25
(D) 0.25
(E) 1.25
Question 5
If b = 12 and c = 13, then c2
- b2
= ?
(A) 1
(B) 5
(C) 18
(D) 25
(E) 313
Question 6
The formula P = 15x - 1000 gives the profit in dollars of a toy company when it sells x number of teddy bears. If the company sells 150 teddy bears, what is the company's profit in dollars?
A company that produces tables finds that its monthly profit indollars is given by the equation P = 250x - 12,500, where x is thenumber of tables that the company sells in a month. If the profitgoal for April is $10,000, how many tables must the company sell in order to reach the goal?
(A) 60
(B) 70
(C) 80
(D) 90
(E) 100
Question 5
Solve for b if 3a + 5(a + b) = 7.
(A) 8a - 7 5
(B) 7 - 8a 5
(C) 75
- 8a
(D) 8a - 7
(E) 7 - 8a
Studyguide for the SAT Skill Quiz B: Rational Linear Equations
Allen is a furniture delivery driver whose daily income in dollars isgiven by the equation I = 0.45m + 75, where m is the number of milesthat he drives in one day. If he made $142.50 on Tuesday, how manymiles did he drive that day?
(A) 150
(B) 175
(C) 200
(D) 225
(E) 250
Question 7
What is the solution set of 3x - 5 = 13 - 6x?
(A) {-73
}
(B) {12
}
(C) {1}
(D) {2}
(E) {9}
Question 8
What is the solution set to the equation 4x - 3 2 = 9?
(A) {10.5}
(B) {5.25}
(C) {1.875}
(D) {1.5}
(E) {6}
Studyguide for the SAT Skill Quiz B: Rational Linear Equations
