EXPRESSIONS, EQUATIONS
4(6n+7) when n=6
What is 172.
-5.7 - (-3.1) - 8.6
What is -11.2
Identify the slope and y-intercept: 6x+3y=18
What is m=-2;b=6
State the mean: 5, 3, 2, 4, 10
What is 4.8
Solve the linear system: x = 3, y = -2
What is (3,-2)
3 times the difference of a number m and 15 is equal to 30 (as an expression)
What is 3(m-15)=30.
-7x(x-3); x= -2
What is -70
X-intercept and Y-intercept: -2x+5y=-20
What is x-intercept=(10, 0); y-intercept=(0, -4)
What is the median: 8, 3, 2, 4, 10, 1
What is 3.5.
Solve: y= -5x + 4, y=6x - 7
What is (1, -1).
x=8 a solution for 2x+10<4x-7
What is no 26<25 does not work!
-16-(-25.2).
What is 9.2.
Equation through (5, -4) and (0, 4)
What is y = -8/5 x + 4.
If 2000 people were surveyed and 16 agreed with a statement, what percent is this?
What is 0.8%.
Is the ordered pair (8, 5) the solution to:
5x-4y=20, 3y=2x+1
What is No.
You buy apples at $2 per pound and oranges at $3.50 per pound. What is an expression for the total cost of fruit purchased? Also, what is the total cost of 7 lbs of apples and 4 lbs of oranges?
What is 2x+3.50y=c ; 28
An elevator moves at a rate of -5.8 feet per second from a height of 500 feet above ground. It takes 6 seconds for the elevator to make its first stop. How many feet about the ground is the elevator now?
What is 465.2 feet.
A line parallel to 2x - 4y = 6
What is y = 1/2x + _____.
If 30% of people reportedly have dogs and the population is 350 people, how many have dogs?
What is 105 people.
Solve: y = x - 4, 4x + y = 26
What is (6, 2).
A rectangular banner is 16 feet long and has an area of 80 square feet. What is the perimeter of the banner?
What is 42 feet.
-3/4 -(-1/2) + (-5/4)
What is - 3/2.
Graph: y=-x+7
What is look at graph.
How many degrees is the wedge in a pie chart representing 25 out of 200 people?
What is 45 degrees.
Solve the linear system: 2x+9y=16, 5x=1-3y
What is x=-1;y=2 or (-1,2)