Integers & Rational Numbers
What is the sum of –4 and 9?
5
What is the constant of proportionality in the equation y = 4x?
y = 4
What is 25% of 80?
20
Simplify: 4x + 2x
6x
What animal has 3 hearts?
Octopus
What is –7 × 3?
-21
Is the relationship in the table proportional? (x: 2, 4, 6 | y: 3, 6, 9)
Yes
Convert 0.6 to a percent.
0.6 = 6/10 = 60/100 = 60%
Simplify: (4x – 7)+(3x+10)
7x+3
On average, what does a 1 Kilometer sized cloud weight?
1,100,000 lbs
What is the opposite of –12?
12
Solve: If 5 apples cost $2.50, what is the cost for 8 apples?
$4
What is 120% of 50?
60
100% 50
10% 5
20% 10
120% 60
Simplify: 2(3x + 4) - (5x + 8)
x
Where did french fries originate?
Belgium
Simplify: –18 ÷ (–3)
6
Find the constant of proportionality and then write BOTH equations.
x y
4 2
8 4
12 6
Constant of proportionality is 1/2
so y=1/2x and x=2y
A $40 shirt is on sale for 30% off. What is the sale price?
$28
100% $40
10% $4
30% $12
Factor: (16x + 20)
4(4x + 5)
How many seconds are in a year?
31,557,600 seconds
The temperature in Alaska was –15°F in the morning and rose 20°F by afternoon. What was the temperature in the afternoon?
5 degrees Farenheit.
A car travels 180 miles in 3 hours at a constant speed. How far will it travel in 5 hours?
300 miles
A student scored 18 out of 20 on a quiz. What percent did the student score?
18/20 = 90/100 = 90%
Simplify: 1/2(4x + 10) + 3(1/3x - 3)
3x - 4
This fruit technically contains radiation?
Banana