Slope
What is the slope of the equation y= -4x + 6?
20 seconds
-4
What is the solution to the following system? 90 seconds
x = 4y
2x + 3y = 22
(8,2)
The sum of two numbers is 104. Their difference is 68. What are the numbers?
90 seconds
86 and 18
Write the number eight billion in scientific notation
45 seconds
What is 8 x 109
4 + k = -8
30 seconds
k = -12
The slope of a vertical line
20 seconds
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r + s = -6
r - s = -10
90 seconds
(-8,2)
A shopper bought 6 shirts and 8 hats for $700. A week later, at the same prices, he bought 9 shirts and 6 hats for $660. What was the cost of one shirt?
90 seconds
$30
Write the number 0.0000056 in scientific notation
45 seconds
5.6 x 10-6
10 = m/16
40 seconds
m = 160
How do you find the slope of a line when given two points?
30 seconds
use the slope formula
(y2 - y1) / (x2-x1)
2x + 3y = 6
3x + 5y = 15
2 mins
(-15, 22)
Mr. Washington left $25,000 for his son and daughter in his will. Mr. Washington left his son $5,000 less than his daughter. How much did he leave his son and his daughter?
2 mins
Mr. Washington left his son $10,000 and his daughter $15,000
At a storage warehouse, each crate weighs 1.5 × 102 pounds. If there are 6 × 103 crates, what is their combined weight?
2 mins
900,000 lbs or 9 x 105 lbs
5(6 - 5x) = -95
45 seconds
x = 5
What is the slope from the table that has the following. (-2, 7) (0, 4) (2, 1) (4, -2)
2 minutes
What is -3/2 or -1.5?
2a - 4b = 12
-8a + 16b = -48
2 mins
Infinitely many solutions
The perimeter of a rectangle is 78 inches. The length of the rectangle is twice its width. What are the dimensions of the rectangle?
2 mins
26 x 13
A farm that has 5 x 106 acres of land produces about 1.6 x 108 pounds of rice each year. How much rice does the farm produce per acre every year?
2 mins
32 or 3.2 x 101
-(n + 2) = 13 - 4n
90 seconds
n = 5
What is the y-intercept of the line 2x+5y=-10
90 seconds
-2 or (0,-2)
3s - 2t = 4
t = 2s - 1
2 mins
(-2,-5)
Tickets to a football game cost $5.00 if purchased before the day of the game. They cost $7.50 if purchased at the game. For a particular game, 600 tickets were sold and the receipts were $3500. How many tickets were sold before the game? How many tickets were sold at the game? How many were sold after? (2 mins)
400 before the game 200 at the game
A newborn panda weighs about 2.2 x 10-1 pounds. An adult panda can weigh up to 1.2 x 103 times a newborn's weight. How much can an adult panda weigh? (2 mins)
About 264 pounds, or 2.64 x 102
3(-6 +4x) = -38 +2x
90 seconds
x = -2