Subtraction and division are derived from addition and multiplication. True or False?
True
100
Which of the following sets is not finite?
A. {x|x is a natural number less than 10}
B. {x|x is a whole number between 0 and 10}
C. {x|x is an integer that is less than 0}
C. {x|x is an integer that is less than 0}
100
x + 8 = 6
x=-3
100
One number is 3 more than 2 times the other, and their sum is 27. Find the numbers.If x represents the smaller number, then the larger number is
2x+3
100
a 4 • a 6
a 10
200
Simplify -|-28| + (-5) 2
-3
200
How many elements are in the set {A,B,C}?
3
200
The sum of 2 consecutive numbers is 37. Find the numbers.
If x represents the smaller integer, then the larger integer is
x+1
200
x 2 • x 5
x 7
300
Simplify (-2)(-3) 2-2(2 - 5)
-12
300
How many elements are in the set {whole numbers between 3 and 15}?
11
300
3 + x + 1 = 2
x=-2
300
One number is 800 less than 3 times the other, and their sum is 1,200. Find the numbers.
Which of the following equations can be used to solve the problem if the smaller number is x?
2x - 800 = 1,200
3x - 800 = 1,200
4x - 800 = 1,200
4x-800=1,200
300
(a 4 ) 5
a 20
400
Solve |3x - 4| = 6
-2/3 , 2/3.
400
Use the list method to write "The odd integers between 2 and 15"
{3, 5, 7, 9, 11, 13}
400
3x + 1 + 5x = 7 +15 + 7x
x=21
400
One of two complementary angles is 4 degrees more than the other. Find the angles. (Recall that complementary angles are angles whose sum is 90 degrees.)
Which of the following equations can not be used to solve the problem if x represents one of the angles?
2x - 4 = 90
2x + 4 = 90
x + 4 = 90
x+4=90
400
x 6 y 3
x 6 y 3
500
Simplify -|-28| + (-5) 2
53
500
Use the list method to write "The perfect square integers between 1 and 80 inclusive"
{1, 4, 9, 16, 25, 36, 49, 64}
500
4 - 7x + 10 = 15 - 6x - 8
x=7
500
Joe is 10 years older than James. In 8 years, twice Joe's age will equal three times James's age. How old is each now?
{James is yrs. , Joe is a yrs.}