Answer:
Since -5 is to the left of 5 on the number line, then -5 < 5.
Answer:
Since 10 is to the right of 5 on the number line, then 10 > 5.
Answer:
First of all, |-5| = 5.
Next we have |5| = 5.
Since both absolute values equal the same number 5, then |-5| = |5| .
Answer:
Since - 4 is to the left of 4 on the number line, then - 4 < 4.
So, the above statement is false.
Answer:
Since - 4 is the same number as - 4 and the statement includes where the two numbers are equal to each other, then this statement is true.
Answer:
Reading it left to right we get:
5 is not equal to -5
Answer:
Reading it left to right we get:
-2 is less than or equal to 0
-2 < 0
Answer:
Reading it left to right we get:
7 is greater than 0
7 > 0
Answer:
The numbers in the given set that are also natural numbers are
Answer:
The numbers in the given set that are also whole numbers are
Answer:
The numbers in the given set that are also integers are
Answer:
The numbers in the given set that are also rational numbers are
Answer:
The number in the given set that is also an irrational number is
Answer:
The numbers in the given set that are also real numbers are
Answer:
Answer:
Answer:
Answer:
Answer:
Answer:
Answer:
Answer:
Answer:
The quotient of 7 and a number
Answer:
Answer:
The sum of 2 and 10 times a number is the same as 30
Answer:
Answer:
-9 + (-10) = -19
Answer:
Answer:
6.5 + (-1.2) + (-3.1) =
5.3 + (-3.1) =
2.2
Answer:
-(-17) = 17
Answer:
Answer:
-15 - (-3) =
-15 + 3 =
-12
Answer:
-1.5 - 2.5 =
-1.5 + (-2.5) =
- 4
Answer:
(-5)(-12) = 60
Answer:
(3)(-5)(2) =
(-15)(2) =
-30
Answer:
(-15)(0) = 0
Answer:
Answer:
is undefined.
Answer:
Answer:
Answer:
Answer:
Answer:
Answer:
Is 1 a solution?
Since we got a FALSE statement (2 does not equal 4), then 1 is not a solution.
Answer:
Is -3 a solution?
Since we got a TRUE statement (10 does equal 10), then -3 is a solution.
Answer:
Using the commutative property of addition (where changing the order of a sum does not change the value of it), we get
3a + 2b = 2b + 3a
Answer:
Using the associative property of multiplication (where changing the grouping of a product does not change the value of it), we get
8(xy) = (8x)y
Answer:
Answer:
Answer:
The opposite of -10 is 10, since -10 + 10 = 0.
The reciprocal of -10 is -1/10, since -10(-1/10) = 1.
Answer:
The opposite of 4/7 is - 4/7, since 4/7 + (- 4/7) = 0.
The reciprocal of 4/7 is 7/4, since (4/7)(7/4) = 1.
Answer:
The bar that associates with December is the fourth bar from the left. The top of that bar is in between 20 and 25 on the vertical axis. A good approximation is 22.
The profit in December is about $22000.
23b. Which month had the lowest profit?
Answer:
It looks like October had the lowest profit.
23c. What is the sum of the profits of October and November?
Answer:
The bar that associates with October is the second bar from the left. The top of that bar matches with 5 on the vertical axis.
The bar that associates with November is the third bar from the left. The top of that bar matches with 10 on the vertical axis.
The sum of the profits of October and November would be 5,000 + 10,000 = $15,000.
Answer:
The point that matches with Monday on the horizontal axis also matches 85 on the vertical axis.
Monday's high temperature was 85 degrees Fahrenheit.
24b. Which day had the highest high temperature?
Answer:
It looks like Wednesday had the highest high temperature.
Last revised on July 25, 2011 by Kim Seward.
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