To solve the following system of equations by elimination, which operation would you perform first? 234x + 65y = 219 and 1225x + 65y = -427
A. addition
B. subtraction
C. multiplication
D. division
What is subtraction?
100
Which of the following is the solution of -4(5 - 2x) = 8?
A. 3.5
B. 2.5
C. -4
D. 1.5
What is 3.5?
100
The graphs of the two lines 4x = 3y + 23 and 4y +3x = -19
A. do not intersect.
B. are identical.
C.intersect at (-2,5).
D. are perpendicular.
What are perpendicular?
100
What is the slope of the line with equation 4x + 2y = 8?
A. -2
B. -0.5
C. 0.5
D. 2
What is -2?
100
Which is a solution of -8x + 5 >= 11?
A. -1/2
B. 3
C. 0.25
D. -1
What is -1?
200
A train moving at a constant speed travels 180 mi in 4 h. How far does the train travel in 7 h?
A. 360 mi
B. 315 mi
C. 280 mi
D. 420 mi
What is 315 mi?
200
If you take three apples from five apples, how many do you have?
What is 3 apples?
200
Which two quadrants contain all of the solutions to the following system? y > 4x - 2 and y > -3x + 5
A. I and II
B. II and III
C. III and IV
D. I and IV
What is I and II?
200
Which of the following represents a horizontal line through (5, -3)?
A. x = -3
B. y = 5
C. y = -3
D. x = 5
What is y = -3?
200
Which of the following points are not solutions of 2y - 5x > 6? I. (-3, 4) II. (5, -5/3) III. (3/4, 5) IV. (2.6, 5)
A. I and II
B. III only
C. II and IV
D. III and IV
What is II and IV?
300
A company's sales of garden tractors increased about 106% from 2007 to 2008. The number of tractors sold in 2007 was 347. How many tractors were sold in 2008?
What is 367?
300
What is the difference between a new penny and an old quarter?
What is 24 cents?
300
Find the number of solutions to each system.
a. 4x - y + 1 = 0 and 4x - y + 3 = 0
b. 2x - y + 4 = 0 and 4x - 2y + 8 = 0
What is no solution and infinitely many solutions?
300
Find the slope of each line.
a. A line that is parallel to the graph of y = 1/2x + 7.
b. A line that is perpendicular to the graph of y = -2x -3.
What is 1/2 and 1/2?
300
It happens once in a minute, twice in a week, and once in a year. What is it?
What is the letter "e"?
400
Southside Bowling Alley charges $3 for the first game and $0.50 for each additional game. Eastside Bowling Alley charges $1 per game.How many games would you have to bowl to to make Southside the less expensive choice?
What is 6 games?
400
Write an equation of the line with a y intercept of -4 that is parallel to 6x - 2y = 13.
What is y = 3x - 4?
400
If you have one pound of rocks and one pound of feathers, which one will weigh more?
What is the same? (they both weigh a pound)
400
Find the x-intercept of the graph of each equation.
a. 3x + 2y = 7
b. 2x + 3y = 7
What is 7/2 and 7/2?
400
Suppose your office gives you $200 to buy binders. Small binders cost $7 each. Large binders cost $8 each. Write the inequality that describes how many of each kind of binder you can buy.
What is 7s + 8l <= 200
500
I am a three digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit.
What number am I?
What is 194?
500
There is a pink house made of bricks, a blue house made of bricks, an orange house made of bricks. What color bricks is a greenhouse made of?
What is glass or plastic, not bricks?
500
Solve the following equations by graphing.
y = x + 3
y = -2x - 3
What is (-2, 1)?
500
Write a question that can be solved using a system of linear equations.
What is six daffodil bulbs and 4 iris bulbs cost $24. Five
daffodil bulbs and 6 iris bulbs cost $28. How much does each bulb cost? (answers vary)