Equations
18 = 3 - 3a
a = -5
x + 7 < 2
x < -5
The total cost to renta pontoon boat for h hours can be represented by the expression 30h + 65. If Brianna can spend a maximum of $200, how many hours can she rent the boat?
4.5 hours
Solve the system
x = 2
2x - 4y = 20
( 2, -4 )
Name the four different kinds of slopes
positive, negative, zero and undefined
4 - 1/2n = -12
n = 32
11x + 13 > -20
x > -3
The expression 400 + 0.15s represents Frank's weekly pay as an appliance salesman where s is his total sales for the week. If he wishes to make at least $1600 this week, how much will he need in sales?
$8000
Solve the system
y = -3x + 2
y = x - 6
( 2, -4 )
Name the three key features of a linear function
slope, y-intercept, x-intercept
9y - 4(y +1) = 31
y = 7
-2x + 6 > 3x - 34
x < 8
Max is making a rectangular garden with a length that is 5 feet less than twice its width. If the perimeter of the garden is 80 feet, find the dimensions.
15ft by 25ft
Solve the system
2x + y = 1
x - 2y = 18
( 4, -7 )
Find the slope of the line that passes through the points (-12, -1) and (-3, -4)
-1/3
3m - (7m + 12) = 2(m - 3)
m = -1
4 - 8x < 2(5 - 3x)
x > -3
The Ravens scored 13 more than three times the number of points that the Bengals scored in their last game. If the Ravens scored 4o points, how many points did the Bengals score?
9 points
Solve the system
y = 2x - 3
y = -3x + 2
( 1, -1 )
Find the X-intercept of the line y = 2x -10
x = 5
Solve A =1/2bh for h.
2a/b = h
3x -7(x +3) > -13
x < -2
The height, h, of a plant (in inches) w weeks since it was planted is represented by the equation h = 1.2w + 3. How many weeks will it take the plant to reach one foot?
7.5 weeks
Solve the system
x = 2y - 3
2x - 3y = -5
( -1, 1 )
Find the X-intercept of the line 3x - 4y = 24
x = 8