Equations Vocabulary
The unknown quantity in an equation or expression.
What is a Variable?
Y / 3 = -6
Y=-18
-2n + 3 = 9
n= -3
6m - m = (5/6)(6m-10)
no solution
You have 96 feet of fencing to enclose a rectangular cage for a baby tiger. To provide enough space for him the cage should be three times longer than the width. Find the dimensions of the cage.
36 feet by 12 feet
The Coefficient.
What is the number next to the variable?
0.05w = 1.4
w= 28
3(x+1) +6= -9
x= -6
10k + 7= -3 -10k
k= -1/2
k= -0.5
During the summer, you work 30 hours per week at gas station, where you earn $8.75 per hour. (yes I know minimum wage is more.) You have another job as a landscaper, where you earn $11 per hour. You boss lets you work as much as you want. How many hours must you work landscaping in order to make $400 per week?
30(8.75) +11t=400
t= 12.5 hours
Double points if you wrote a sentence.
A number without a variable.
What is the constant?
t - (-5) = 9
t= 4
15= 5+ 4(2d-3)
d=2 6/8
d= 2 3/4 (double points)
d= 2.75 (triple points)
3(2a -2) = 2(3a -3)
infinitely many solutions
You order two tacos and a salad. The salad costs $2.50. You pay an 8% tax (evidently you're in California) and leave a $3 tip. You pay a total of $13.80. How much does one taco cost?
1.08(2t+2.50) +3= 13.80
t= 3.75
Double points for a sentence.
The operation you use with the word difference?
What is Subtraction?
b- (3/16) = (5/16)
b= 8/16
b= 1/2 (Double Points)
5(3-x) + 2(3-x) = 14
x= 1
10(2y+2) -y = 2(8y -8)
y= -12
What is the name of Miss Chambers old car?
RIP
Hercules
The operation you use with the words increased by.
What is addition?
x / (-2) = -1.4
x= 2.8
2x(5 - 3)- 3x = 5
x= 5
7+ 3x -12x= 3x +1
x= 1/2 or 0.5
What is Miss Chambers' favorite color.
Green (double points)
Orange and Blue for single points.