Fractions
-3/6 * 2/7
-1/7
-1.02 / 0.02
-52
9 + 87 = 2(8P + 8)
P = 5
Sebastian buys video games at GameStop. Each video game costs $10. If Sebastian has $50 to spend, what is the equation that shows how many video games he can buy?
10M = 50
Solve for H:
-10R = 8H
H=-5/4R
A symbol (usually a letter) that represents an unknown quantity
What is a variable?
-6/10 / 8/9
-27/40
-0.365 / -0.5
0.73
6(-3-2x) = -3(-x+3)
-3/5
Lancelot is a personal trainer and uses two different workout plans with his clients. Plan 1 takes 90 minutes to complete and Plan 2 takes 25 minutes. Lancelot trained 6 clients using Plan 2 last weekend. How many clients (x) did Lancelot train using Plan 1 if the total training time was 420 minutes? (Create & solve the equation)
25(6) + 90(x) = 420
x = 3 clients
Solve for F:
-8 - 6P = 11P + 10F
F=-4/5 -17/10P
The number in front of a letter
What is a coefficient?
2/5 - 5/35
9/35
0.0450/-0.009
-5.0
-8 + x/9 = 8 - x/7
63
Aurora wants to earn $130 this summer mowing and raking lawns in her neighborhood. She charges $4 for raking the lawn. She can mow and rake 10 lawns this summer. How much does she need to charge to mow? Create and solve the equation.
10(4+x) = 130
x = $9 per lawn mowed.
Solve for C:
7 + 6C + 7M = 7
C = -7/6 M
A value that does not change
What is a constant?
1 9/10 + 3/5
5/2 or 2 1/2
124.6 / -1.4
-89
Solve for X:
-8 - x/4 = -x/7 + 3
-308/3
Apollo runs a website that teaches people to speak foreign languages. He charges each client $61.42 to use the website. Creating the website cost Apollo $120.67. If he wants to make at least $3,503.11 in profits, how many clients (x) must pay to use the website? (Create & solve the equation)
61.42x - 120.67 = 3503.11
x = 59 clients
The Pythagorean Theorem is
a^2 + b^2 = c^2
Solve for c.
c=sqrt(a^2+b^2)
A mathematical sentence that shows that two expressions are equal
What is an equation?
7/8-9/10
-1/40
(-0.096)/-0.08
1.2
-8 + x/9 = 8 - x/7
81/85
Ward is saving money to buy Disneyland merchandise that costs $201. Ward has $17 and will save $23 each week. How many weeks will it take Ward to save enough money to buy the Disneyland merchandise? (Create & solve equation)
17 + 23w = 201
w = 8 weeks
In the formula for surface area of a sphere
S=4pir^2
, solve for r.
r=sqrt(S/(4pi))
Operations that undo each other; addition and subtraction / multiplication and division
What are inverse operations?