Random?
An equation has an.....
Equal Sign (=)
Your class budgets money from the class treasury for a school dance. Decorations cost $50. The DJ charges $30 per hour. Your class spends a total of $170 on the dance.
Write an equation to find how many hours, h, the DJ spent working at the dance.
BONUS 100 points: How many hours did the DJ work at the dance?
30h + 50 = 170
When David was eight, his little brother Alex was half his age. David is 30 now. How old is Alex?
26 years old
The letter in an equation is called the....
variable
Darrel went to a trip to Africa for a photo safari. The trip costs a total of $2,800. He started with $1,000 in his savings account and saved $30 per week.
Write an equation to find the amount of weeks, w, it took Darrel to save up for the trip.
1,000 + 30w = 2,800
−9x + 1 = −80
x= 9
Who was the music artist that was played in Mr. Woods room this week?
Ed Sheeran
What is an inverse operation?
The opposite of a given operation.
The computer club sells 50 more than 3 times the number of pins the chess club sells. The computer club sold a total of 134 pins. How many pins does the chess club sell?
3p + 50 =134
18 = 2(n + 6)
n = 3
Who is the Middle School Math Instructional Assistant?
Hint: They come in and help with math!
Ms. Gonzalez
When solving an equation, what is the goal?
To isolate the variable
Wal-Mart is having a sale on canned goods. Tiana decides to stock up and purchases 12 cans of soup. During the sale, each can of soup sell for $0.55 less than full price. Tiana pays a total of $13.20 for the cans of soup.
Write an equation you use to find the amount, f, each can of soup costs at full price?
12(f - 0.55)=13.20
4(q - 14) = 16
18
What are two of the Fast Five questions?
1. What are inverse operations?
2. How can you isolate the variable to solve the equation?
3. What are coefficients and constants?
4. How can you eliminate parentheses to solve an equation?
5. How can you represent a problem with an equation?