Positive & Negative #'s
Represent the following:
Fifty feet below sea level
-50 feet
Is the inequality true or false?
-5 < 5
true
-5, -6, -7, -8 are ordered from least to greatest. True or false?
False
Identify the coefficient(s) in the expression 2x + 1
2
The opposite of the opposite of -7 is?
-7
Write an inequality that correctly compares the numbers 3/4 and -2.5
3/4 > -2.5 or -2.5 < 3/4
Put the following in order from least to greatest:
-6, -8.9, 1/3, 0
-8.9, -6, 0, 1/3
Is 25 a solution?
3y = 50
No, the solution gets you 75.
How many terms are in the following expression
3x + y + 72 - 3
4 terms
A number that is the same distance from -10 to 0 but in the other direction.
10
List all the solutions that can work for "x".
4x < 24
0, 1, 2, 3, 4, 5
Order the numbers from greatest to least
l -9 l, l -11 l, l 3 l, l 4 l
l-11l, l-9l, l4l, l3l
Solve. 235 = x - 32.5
x= 267.5
Simplify the expression 4(5x + 8)
20x + 32
What are the intervals for the rational number -3/4?
0, 1
13 + x > 75 what is the solution?
x>62
Order the rational numbers from greatest to least.
-3/4, -1, -0.25, -0.5
-0.25, -0.5, -3/4, -1
True or false. To solve 7x = 42, one should multiply both sides by 7.
False, divide both sides by 7.
Write an expression for "Two less than seven times a number (x)"
2-7x
Which of these numbers is its own opposite?
0, -5, 10, -1/2
0
Compare the following integers using an inequality:
6.5 feet below sea level and 6.7 feet below sea level
-6.5 > -6.7 or -6.7 < -6.5
Are the set of numbers ordered from greatest to least? If not, reorder them.
l -10 l, -9, l -8 l, -7
No, l-10l, l-8l, -7, -9
Some number (x) divided by 0.5 is going to equal 47.
x= 23.5
Layla buys 4 packs of pens. Each pack is on sale for $0.75. Let "x" represent the original price of one pack of pens. She finds that the total amount she spends is 4 times the difference of "x" and $0.75. Write an expression to represent the total amount spent on pens.
4(m - 0.75)