Rational Number Operations
Solve 5 + -3
2
A package of 5 pairs of insulated gloves costs $29.45. What is the cost of a single pair of gloves?
Hint: Use a table like we did in class to help you solve this!
$5.89
59% of 640
377.6
Solve 3d - 4 when d = 1.2
-0.4
I am so simple that I can only point, yet I guide people all around the world…What am I?
a compass
Write and solve an expression to represent the following situation...
The news reports that today's high temperature is 16
°F colder than yesterday's high temperature. Yesterday's high temperature was -2°F.
-2 - 16
= -18
How do you know if a table is rational?
Find the unit rate for all rows, if they are the same for each then the table is rational!
Mr. Carrasco goes shopping for new rulers for his classroom. To get a class set of 30 rulers for the classroom, it would cost $25. However, he was a smart shopper and went to a store with a 10% off sale. How much did he really pay?
$22.5
Write an equivalent expression: -3(7+5g)
-21 + 15g
-3(7) + -3(5g)
-3(5g + 7)
What is the end of everything?
g
Which product is greater, (-4) * (-6) or (-7) * (-8)?
(-7) * (-8)
Write an equation to represent the given situation.
Ann’s car can travel 228 miles on 6 gallons of gas
y=38x
If the selling price is $39.98 and the tax rate is 4.5%, what is the sales tax?
$1.80
Simplify the expression
2n + 5.5 - 0.9n - 8 + 4.5p
1.1n + 4.5p - 2.5
What can’t talk but will reply when spoken to?
an echo
Write and solve an expression for the situation below.
A company loses $780 as a result of a shipping delay. The 6 owners of the company must share the loss equally.
-780/6
=-$130
How do you know if a graph is proportional?
Straight line that passes through the point (0,0)
Mitchell went on a shopping trip to Kensington. He purchased a pair of headphones originally priced at $50 but discounted 60%. If sales tax in Kensington is 15%, what was the total cost?
$23
Use the Distributive Property to expand
7(7x - 3y) - 6
49x - 21y - 6
I fly without wings…
I cry without eyes…
Wherever I go, darkness follows me
What am I?
a cloud
Brianna works as a customer service representative. She knows that the amount of her yearly bonus is $155, but $2.50 is taken away for each customer complaint about her during the year. What is her bonus if there are 12 complaints about her in the year?
$125
Marielle’s painting has the dimensions shown. The school asks her to paint a larger version that will hang in the cafeteria. The larger version will be twice the width and twice the height. Is the area of the original painting proportional to the area of the larger painting? If so, what is the constant of proportionality?
Yes; 4
When a large tank was 40% full of water, it held 330 gallons. How many gallons does the tank hold when completely full?
825 Gallons
Un-do the distributive property 14x + 49
7(2x + 7)
The person who built it sold it. The person who bought it never used it. The person who used it never saw it. What is it?
a coffin