Sets of Numbers and Properties
List the sets that -11 belongs in.
Write an algebraic expression for:
Seven fewer than a number, x.
x - 7
Evaluate:
8(a + 5) - a
for a=-4
12
Solve for x.
r - 2x = 15
x= (15 - r)/ -2
2x > 16
x > 8
List the sets that the square root of 25 belongs in.
Natural, whole, integer, rational, real
Write an expression for:
I have $50 and I am saving $5 per week.
50 + 5x
Describe the order of operations.
Parenthesis, exponents, multiplication/division, addition/subtraction
Solve for k.
6k + h = -14
(-14 - h)/6
4x - 9 < 27
x < 9
Name the property illustrated.
-11 + 7 = 7 + (-11)
Commutative property of addition
The freshmen class will be selling carnations as a class project. What is the class's income after it pays the florist a flat fee of $200 and they sell the carnations for $2 each?
2x - 200
Evaluate y2 for y=-1/3
1/9
Solve for r.
I = prt
r = I/ pt
4(x-2) > 24
x>8
Name the property illustrated.
3/8 × 8/3 = 1
Inverse property of multiplication
Simplify the expression
6x2 - 7x2
-x2
Evaluate (x2 - y2) for x=6 and y=-3
27
Solve for x.
(x+5)/4 = y
4y-5
x -6 is at least 12
You need to figure out which symbol goes there and solve!
n - 6 >= 12, n>= 18
Name the property illustrated.
-3 (x + 7) = -3x - 21
Distributive property
Simplify the expression:
- (4k + n) + 2(8k - 5n)
12k - 11n
Solve 7(a + 1) = 10a - 5
a=4
Solve for x
3x + 4y = 10z
10z - 4y / 3
The product of -3 and a number is at most 18.
-3n<=18, n>=-6