The ratio of boys to girls is 3 to 2. If there are 12 boys, how many girls are there?
LABEL
8 Girls
Write the inequality:
7 times number x is less than 17
7(x) < 17
Do these points show a function? Explain your thinking. List the Domain and Range.
(4, 6), (4, 9), (0, 12), (-2, 15)
NOT A FUNCTION
domain: 4, 0, -2
range: 6, 9, 12, 15
Find the Slope of the Table
-3/4
-x +3y= -5
3x +2y=4
(2, -1)
The ratio of the cost of a tennis racket to tennis balls is 18:1. If a can of balls cost $5.35, what is the cost of the racket?
LABEL
$96.30
What are the solutions? Graph the inequality.
x - 4 <-6
x<-2
If f(x)=2x+1, find f(3)
f(3)= 7
Find the slope of the line that goes through the points (1,-2) and (-7, 2). Simplify, if necessary.
-1/2
y=10 +3x
-x +2y =0
(-4, 2)
A crew of loggers cleared ½ acre of lumber in 4 days. How long will it take the same crew to clear 2 ¾ acres of lumber?
LABEL
22 Days
15x-8< (4/5)
x < 44/75
Alyssa accepted a new job at a company with a contract guaranteeing annual raises. Alyssa will get a raise of $4000 every year and has a starting salary of $45000. Write an equation for S, in terms of n, representing Alyssa's salary after working n years for the company.
S=4000n+4500
Find the slope of the line that goes through the points (1, 0) and (1, 2). Simplify, if necessary.
Undefined!
y= -x -2
2x-3y = -9
(-3,1)
Solve the equation 8x + 6y = -6 in terms of y.
y= (-4/3)x - 1
-9<4x+3 < 11
-3 <x< 2
Draw a graph to represent the story. Do not forget to label your axes.
A pelican is flying over the water and dives down to catch a fish on the surface of the water. After it ate the fish, the pelican floats on the water thinking if he is still hungry or not. He decides that he is a little hungry and flies and lands on the sandy beach to get some tourist scraps. Time is your independent variable and altitude (distance above water/ground) is your dependent variable.
Have to have graph and labels(:
The satellite Space Explorer flew 30,400 miles in 19 hours. Find the rate of change in miles per hour Please label your answer.
1600 mi/hr (must have label!)
Samir works as a salesperson at an electronics store and sells phones and phone accessories. Samir earns an $8 commission for every phone he sells and a $4 commission for every accessory he sells. One day, Samir made a total of $216 in commissions from selling a total of 39 phones and accessories. Find the number of phones and accessories.
15 phones and 24 accessories
9(-2x-2)-7=4(-5x+4)-2x
x= 41/4
3x+10< -2 or 13<3x+10
x< -4 OR x>1
Graph using a table of values. (Use x values from -2 to 2 in your table.)
y=-(1/2)x+2
Must have table -2 to 2 and correct graph with points(:
Write the equation of a line in with a slope of (1/3) that goes through the point (-9, 1). Start in point-slope form and then simplify to slope-intercept form.
y-1 = (1/3) (x+9)
y=(1/3) x+ 4
At a local fitness center, members pay a $20 membership fee and $3 for each aerobics class. Nonmembers don’t have a membership fee but they pay $5 per class. What number of aerobics classes will cost for members and nonmembers be the same? What is the cost?
10 Classes, $50