Equations
Inequalities
Graphing
Word Problems
Algebra Rules
100
Averey wants to play games with his friends. If Averey has 10 friends coming over and he only has 2 controllers, how many more controllers will he need?
2+x=11
x=9
100
Whatever you do to one side of the equation...
You do to the other side!
200
T-7.5>=-12.5
T>=-5
200
Tasha currently has $67 saved in her bank account. She will be staying in New York for three nights where she will be spending $100 each night. How much more money does Tasha need to save?
$67+x=$300
x=$233
200
What happens when you multiply or divide by a negative in an inequality?
The inequality sign flips
300
20x-3>24
*Credit to Peyton*
20x>27
x>1.35
400
16c + 24c + 10c = 250
*Credit to Aaradhya & Zaina*
(Sorry, I could not make sense of your word problem)
50c=250
c=5
400
9(3x+2.5)>76.5
*Credit to Maverick*
27x+22.5>76.5
27x>54
x>2
500
-5(20-1.25)+x=49
-100+6.25+x=49
-93.75+x=49
x=142.75
500
-5(9x-1)> -9
-45x+5> -9
-45x>-14
x<14/45
500
Graph the inequality (#4 on Topic 5.7):
2(n+3)-4<6
2n+6-4<6
2n+2<6
2n<4
n<2
500
Abby and her five friends have $42 to spend on snacks for a movie. Her friends buy two large popcorns for $6 each. They would also like to buy some pretzel bags which cost $2.75 each. How many pretzel bags can they buy without exceeding their $42 budget?
$12+$2.75p<=$42
$2.75p<=30
p<=10.909
No more than 10 pretzel bags