Which equations have infinitely many solutions? Select TWO that apply.
A. 6 (x - 9) = 6x - 54 + x
B. 5 (x - 8) + 10 = 5 (x + 2)
C. 20 - 8x - 6 = 2 (7 - 4x)
D. 4 (x + 4) = 2 (2x + 5) + 6
7 answers
The options A and C have infinitely many solutions.
A salesman makes both a base salary and also a commission, which is a percentage of what he sells. Each month, if his sales total s dollars, he makes a total of 2,000 + 0.1s dollars. What does 2,000 represent?
A.
his monthly base salary in dollars
B.
the amount of his monthly sales in dollars
C.
his total monthly pay in dollars
D.
his monthly commission in dollars
A.
his monthly base salary in dollars
B.
the amount of his monthly sales in dollars
C.
his total monthly pay in dollars
D.
his monthly commission in dollars
Option A is the correct answer. 2,000 represents the salesman's monthly base salary in dollars.
The value of a baseball card in dollars has been found to be 0.15y + 0.35, where y is the number of years since it was released. By how much is the baseball card's value increasing per year?
A.
$0.15
B.
$0.35
C.
15%
D.
35%
A.
$0.15
B.
$0.35
C.
15%
D.
35%
The baseball card's value is increasing at a rate of $0.15 per year. Therefore, the correct option is A. $0.15.
Manipulate the equation y=5x-11 so that it is written in terms of x. Which equation is equivalent to y=5x-11?
A.
x=(y/11) -5
B.
x= y+11/5
C.
y-11/5
D.
x=(y/5) +11
A.
x=(y/11) -5
B.
x= y+11/5
C.
y-11/5
D.
x=(y/5) +11
The correct answer is B. x = (y + 11)/5