Watch this! I can multiply!
And divide too! Woohoo!
Word problems
need word answers!
need word answers!
It's complex!
Sub me in, coach!
100
−9 ∙ 0 ∙ (−3)
0
100
-56 divide -14
4
100
The water in a pool evaporates at a rate of 16 gallons per week. What integer represents the change in the number of gallons of water in the pool after 24 weeks?
The integer that represents the change is -384 gallons.
100
(2/9)/(-4/7)
-7/18
100
Evaluate the expression for s = –1.
44s^2
44
200
-18∙6
-108
200
10 − 12^2 ÷ (−2)^3
28
200
How many three-quarter pound burgers can be made with 12 pounds of hamburger?
You can make 16 burgers.
200
(5 2/3)/(2 1/6)
34/13
200
Evaluate the expression for w = -12. Simplify your answer.
(-w)/2
6
300
−|−3| ∙ (−6)
18
300
1 5/6 divide (-30)
-11/180
300
A gallon of gasoline costs $2.96. Your car has a 25-gallon gas tank. Find the cost of filling your gas tank if it is already 1/5 full?
It will cost $59.20 to fill up the rest of your gas tank.
300
(15/8)/(5/2-1/4)
5/6
300
Evaluate the expression for u = -3.
-16(-2u)
-96
400
1.27 ∙ (-2.2)
-2.794
400
14.616 divide (-2.32)
-6.3
400
The table shows the changes in your times (in seconds) at the new skateboard ramp.
What is your mean change?
Your mean change is −0.52 seconds.
400
(-3/10)/(1-2/5)
-1/2
400
Evaluate the expression for c = 2.
-7c^2-10c+49
1
500
1 2/3(-2 9/10)
-4 5/6
500
What is the mean of the follow data points?
7.6, -2.3, -0.3, -16.7, 1.2
The mean is -2.1.
500
DAILY DOUBLE (WORTH 2 POINTS)
Two integers, a and b, have a product of –48.
a. What is the greatest possible sum of a and b?
b. Is it possible for a and b to have a sum of 13? If so, what are the integers?
a. The greatest possible sum for a and b is 47.
b. Yes; -3 + 16 = 13.
500
(2 2/3+1 5/6)/((4/5)(-9/2))
-5/4
500
Explain why substituting x = 2 into the following expressions would give you a different answer.
a) -x^2
b) (-x)^2
In part a, 2 is squared and then the negative sign is put on it, so the answer is -4.
In part b, it's -2 that is squared, which is 4.