Vocabulary
What is a rational number?
A number that can be written as a fraction a/b where a and b are integers and b does not equal zero.
3x-4=11
x=5
You buy snacks for the game. You spend $6 on drinks and $2.50 per slice of pizza.
Your total was $16.
Write and solve an equation
2.5x+6=16⇒x=4
What is a coefficient?
The number multiplied by a variable (ex: 7x, 7 is the coefficient)
1/2x+7=19
x=24
A gym charges a $10 signup fee plus $4.25 per workout session.
Your total bill was $42.
10+4.25x=42⇒x=7.5
What are like terms?
3/4(x-8)=6
x=16
You earn 2/3 of your babysitting money after paying a $5 supply fee. If you took home $25, what are your total earnings?
x=45
What is the distributive property?
a(b+c)= ab+ac
5x-3-2x=18
x=7
A gym charges a $50 membership fee plus $12 per class. You paid a total of $218 one month.
Write and solve an equation to find how many classes you took.
14 classes