Find 25% of 40.
(Hint: Change percent to a decimal)
0.25(40) = 10
Combine like terms: t + t + t
3t
Subtract: (4a - b) - (6a + 3b)
-2a - 4b
Fill in the blank to compare using <, >, or =
-2 + 3 ______ 1
-2 + 3 = 1
1 = 1
Which is greater?
15% of 60 OR 20% of 80
0.15(60) = 9
0.2(80) = 16 20% of 80 <-- Greater!
Evaluate 2x² + 3x when x = 2.
(Hint: Use your order of operations to solve!!)
2(2)² + 3(2)
2(4) + 3(2)
8 + 6
14
The mean of six numbers is 6.8. Find the missing TWO numbers that would make this true.
5.4, 3.2, ______, ______, 8.9, 12.4
(Hint: Mean is finding the average.)
The total is 40.8, therefore it can be any two numbers that total 10.9.
(x + 29.9)/6 = 6.8
x = 10.9
Find the least common multiple for 6 and 8.
6, 12, 18, 24
8, 16, 24
Jennifer charges $6 to rake leaves in her neighborhood. Last week, she raked leaves in 4 yards. She put 2/3 of her earnings in her savings account. How much did Jennifer save?
6(4) = $24 earned
24(2/3) = $16 saved
Factor the following expression: 21s - 7js
7s(3 - j)
Solve the equation 5x + 7 = -13
x = -4
Town X and Town Y are 105 miles apart. Sarah left Town X for Town Y at 11 am. If Sarah traveled at an average speed of 42 miles per hour, at what time did she reach Town Y?
1:30pm
It took her 2.5 hours to get there (105 miles / 42 mph)
A rectangular field has a length of 13/50 miles and a width of 12/25 miles. Find the area of the field.
(Hint: Area of a rectangle is length times width)
156/1250 = 78/625 or 0.1248
Rewrite the following expression using the distributive property -(b + c)
-b - c
Solve: 20.53 * 1.55 + 0.02. Round to the nearest thousandths.
20.53 * 1.55 + 0.02
31.8215 + 0.02
31.8415
ROUNDED: 31.842
How many degrees do complementary angles equal?
Two angles add up to 90 degrees.
Gavin and Michael stopped for lunch on their road trip. They each ordered a burger and fries that was $7.50 and a shake for $2.50. If they wanted to leave a 20% tip, how much should they leave for the tip only?
2(7.50) + 2(2.50) = 20
20(0.2) = $4 for tip
Write an equivalent expression for: 4(5b + 6c)
4(5b + 6c)
4(5b) + 4(6c)
20b + 24c
What is the 15th number in the pattern?
2, 6, 12, 20, 30, 42, 56 . . .
240
2, 6, 12, 20, 30, 42, 56, 72, 90, 110, 132, 156, 182, 210, 240
+4, +6, +8, +10, +12, +14, +16, +18, +20, + 22, +24, +26, +28, +30
Which expression(s) would result in the smallest number?
-2(-5) or -2 + (-5) or -2 - (-5) or -2 - 5
-2(-5) or -2 + (-5) or -2 - (-5) or -2 - 5
10 -7 3 -7