Vocabulary
Use _________ to solve an equation by undoing the operation.
-solve
-inequality
- inverse operations
Inverse Operation
When representing Equal TO on a number line, the circle is ______
Closed
What is the inequality that represents:
Shari can spend at most $25 to buy a new baseball hat.
25 > = x
y / -11 = 28
y = -308
What is the inequality that represents:
Andre borrowed fewer than 25 library books
25 > x
A (n) _______ is a mathematical sentence that compares quantities that may or may not be equal.
-inequality
-solve
-equation
Inequality
-12 + x = -30
-42, -18, 18, 42
-18
-18 + a > -21
4
A sea turtle swam down 64 feet on an elevation of -85 feet.
What equation could be used to find the starting elevation of the sea turtle?
x - 64 = -85
What is the solution of the equation:
625 = -219 + x
844
A (n) _______ of an equation or inequality is a value that makes the equation or inequality true.
-equal sign
- solution
-equation
Solution
6m= 42
m=7
What is the inequality that represents:
The paint needs at least 25 minutes to dry.
25 < = x
The surfboard costs $129 Already saved $45
If m represents the remaining amount of money, in dollars, that is needed to save to purchase the surfboard?
m + 45 = 129
x + 1/2 = 2/5
- 1/10
A (n) ______ is a symbol used to show that two equations are equal.
- solution
-solve
-equal sign
Equal Sign
15 = c - 38
50, -50, 20, -20
50
Which values of x makes the inequality true?
-9 - 4x < 2x - 3
-2, -1, 0, 1, 2
0, 1, 2
Imagine you are running on a track collecting coins. If you fall off the track you loose 15 coins. How many falls would it take to lose 120 coins?
8
Susan runs the same number of miles, x, every week. Her total distance ran each week is less than 60 miles. What inequality represents how many miles Susan runs each week.
x < 60
The property of equality that is used to solve the equation 2x=16 is __________
-subtraction
-multiplication
-division
Division
x/15 = 30
450
4x - 8 =4
1, 3, 4, 9
3
What is the inequality that represents:
The barber recommends more than 25 hours between washing.
25 < x
Solve for x:
x - 64 = -85
x = -21