Vocabulary
A number and its opposite sum to 0.
What is additive inverse?
-33
-27
2x-9=45
x=27
The sum of 3 consecutive numbers is 234. Find the numbers.
77, 78, 79
Find the supplement of 74o, 155.6o, and 94.5o.
74--106
155.6--24.4
94.5--85.5
a/b = a (1/b)
What is the definition of division?
-252
-625
1/4x + 7 = -3/4x - 42
x = -49
Selina is 4 years younger than Kayden now. Three year's ago, Selina's age was 3/5 the age of Kayden then. Find Kayden's age now.
Kayden is 13 years old.
Find the complement of 21o, 15.4o, and 48.5o.
21--69
15.4--74.6
48.5--41.5
A number that can be written in the form x/y where y is not equal to 0.
What is a rational number?
(-25)(625), give answer in exponential form.
-56
3(x+9) -3x = 17
No Solution!
Amanda thinks of a number x. She adds 5 to x and multiplies the sum by 2. If 56 is divided by the result the final answer is -4. Find Amanda's number x.
x = -12
3 angles are made on a straight line measuring 25, 49, and w degrees. Find w.
w = 106
Terms in an equation that have the same variable with the same power.
What are like terms?
(-4/5)2/(2/3)3+((3/8)-(23/64))1/3
241/100
3(4x + 3) = 1/4(48x + 36)
Infinitely Many Solutions!
Elaine paid $10 for 6 pens and 8 erasers and was given $3.60 as change. Given that 2 pens cost $1 more than 3 erasers, find the cost of one eraser and one pen.
One eraser cost $0.20 and one pen costs $0.80
4 angles formed around a point measure 100, 43, 92, and a. Find a.
a = 125
ax(ay) = ax+y
What is the property of multiplying the exponents with the same base?
(-1)47+2(3^3+4^2-6^2)
127
14/5(4 - (2/7)y) = 28
y = -21
The volumes of two glasses of water are (7ax - 3bx + 6ay - 4by)cm3 and (11bx + 5ax - 6by -21ay)cm3. Let V be the total volume of the water in both glasses. Express V in terms of a, b, x, and y in factored form.
(4x-5y)(3a+2b)
3 angles on a straight line measure (x - 10), (3x + 23), and (x - 19). Find x.
x = 37.2