Show:
I can define and identify terms and coefficients in algebraic expressions.
I can solve multistep equations and justify my solutions.
I can rearrange equations and formulas to highlight different variables.
I can write equations and expressions that model real world situations.
Mystery Questions!
100
How many terms does the expression below have? 3x + 2 - y
3 terms
100
Solve the equation below. 3x+2=23
x=7
100
Solve the equation for y. 3x+y=6
y=-3x+6
100
Which equation below matches the context given? The 9th grade class is going on a field trip. 24 of them can't go. Each bus holds 60 kids. Write an equation where y is the total number of students going on the field trip, and x is the number of buses needed. y=60x+24 OR y=60x-24
y=60x+24
100
Solve for x. 5x=25
x=5
200
What is the coefficient of the term below? 3x
3
200
Solve the equation below. 3x+5x-6=10
x=2
200
Solve the equation for y. 3x+6y=24
y=-1/2x+4
200
Choose which equation best matches the context given. To go bowling it costs $20 to rent the lanes and then $3 per person for each person's bowling shoes. Write an equation where y is the total cost and x is the number of people going. y=20x+3 OR y=3x+20 OR y=20x-3 OR y=3x-20
y=3x+20
200
Solve for w. 3w+9=5w-13
w=11
300
How many terms does the expression below have? 3ab - 2b + 4a
3 terms
300
Solve the equation below. 4x+7=2x+25
x=9
300
Solve the equation for y. -2x-4y=8
y=1/2x-2
300
The equation below represents the total amount of money a band makes in a concert (y), where x is the number of tickets they sell at $15 per ticket. y=15x+2,000 What does the 15x represent?
The 15x represents the total amount of money made from ticket sales.
300
What is the coefficient of the second term? 3ab - 2b + 4a
-2
400
What is the coefficient of the last term in the expression below? 3ab - 2b + 4a
4
400
Solve the equation below. 4(r-3)=8
r=5
400
Solve the equation for x. 3x+6y=24
x=8-2y
400
Last year the 9th grade class went on a field trip. Each bus held 55 kids but there were 14 empty seats all together. Write an equation that represents the situation where y is the total number of 9th graders and x is the number of buses used on the field trip.
y=55x-14
400
What does it mean to "justify"?
Explain in complete sentences what you did and why you did it.
500
How many terms does the expression below have? 3xy + 2y - z + 5yz - 4x + 9xz
6
500
Use complete sentences to justify your solution to the equation below. 6t-13=15
I added 13 to both sides because that is the inverse of subtracting 13. That left me with 6t=28. Next I divided both sides by 6 because that is the inverse of multiplying by 6. That left me with t=28/6 or 14/3 or about 4.67.
500
Solve the equation for w. P=2l+2w
w=(p-2l)/2 or w=p/2-l
500
There are three ways to score in basketball: 3-point shots, free throws, and 2-point shots. The basketball team scored 21 points from 3 point shots. They didn't make any free throws the entire game. Write an equation where y is the total number of points they made and x is the number of 2-point shots they made.
y=2x+21
500
Solve the equation below. 3(x-2)=27
x=7