. Is 5c - 2c = 3c and expression or equation?
Equation
Alg: Solve the following systems of equations using substitution:
x = 6
y = 2x - 3
(6,9)
Solve for the unknown variable f.
15f−23=2(4f+20)
f = 9
What are the "like" terms in the expression 6h + 5y - 2y +8
5y and -2y
A group is selling hot dogs and hamburgers to raise money for the school band. Hot dogs sell for $3 each, and hamburgers sell for $4 each. If the group raises a total of $150, what equation can help determine how many of each was sold?
3x + 4y = 150
x- number of hot dogs
y- number of hamburgers
Which number is the coefficient in the equation 3x + 6 = 18
3
Alg: How many solutions does the graph have?
Alg: 1 solution
Solve for k:
4(−2k−8)=6(k+18)
k = -10
Algebra: Find the x-intercept and y-intercept of the following equations:
1. 2x - 3y = 5
Pre-Algebra:
Find the slope of the line passing through each pair of points.
1. (2,5) and (3,6)
Algebra:
1. 2 1/2; -1 2/3
Pre-Algebra:
2. 6
For 4 hours Sam traveled at 40 miles per hour. Then he increased his speed to 60 miles per hour and drove for another 3 hours. How far did he go in the 7 hours he traveled?
340 mi
Twice a number is 18 more than 5 times a number. Write an equation that represents this situation.
2x = 18 + 5x
Alg: Solve the system of equations by graphing. Write the solution as an ordered pair.
y=8x+1
y=6x+3
(1, 9)
18 - 4k = -10 - 4k
No solution
Simplify the expression.
x + 10 -6(x - 3x) + 4
13x + 14
The first flock contained 5283 birds. The second flock contained 5 times as many birds. The third flock had twice as many birds as the second flock. How many birds were there in all?
84,528 birds
Algebra:
1. A graph in which 2 sets of data are plotted as ordered pairs in a coordinate plane are called a __________.
Pre-Algebra:
2. Addition and subtraction are examples of _________.
Algebra:
1. scatter plot
Pre-Algebra:
2. Inverse operations
Alg: How many solutions does the graph have?
Alg: No solution
Which graph best represents: −5y=−6x+15?
C
Algebra:
1. The slope- intercept form of a linear equation is ___________.
Pre-Algebra:
1. __________ contains the same variable.
Algebra:
1. y=mx+b
Pre-Algebra:
1. like terms
The number of red frogs exceeded the number of blue frogs by 80. The number of green frogs was 20 less than the number of blue frogs. If there were 120 blue fogs, what was the sum of the reds, the blues, and the greens?
420 frogs
1. Simplify: 3y - 9 if y = 3
2. The domain is also known as...
1. 0
2. x, independent variable, and input.
How many solutions does the graph have?
Infinite solutions
(x+5)/4=7
Solve for x
x = 23
What is the slope of the graph of: y=12x−19?
12
Six times a number is 45 greater than the product of the number and -3. Find the number.
5