Parts of a Relation
Evaluate
Solve the Equation
Write an Equation
Divisibility Rules
100
Label the numerical coefficient, constant term and variable: 4x - 7
4 = numerical coefficient x = variable 7 = constant term
100
x/7 if x = 21
3
100
Solve for the variable: x + 7 = 36
x = 29
100
Three times the number of kittens is 12.
variable = # of kittens 3n = 12
100
SHOW YOUR WORK - or no points! Is 23,264 divisible by 2, 3, or 6?
2 - yes b/c it is even 3 - NO - 2+3+2+6+4 = 17, 17 is not divisible by 3 6 - NO - because it isn't divisible by 3
200
Label the numerical coefficient, constant term and variable: x/7 +2
7 = numerical coefficient x = variable 2 = constant term
200
3n + 21 if n = 8
45
200
Solve for the variable: n/6 = 3
n = 18
200
It costs $4 for bread and $2 for serving of sandwich meat. The total is $12.
variable = how many servings of sandwich meat. 4 + 2n = 12
200
SHOW YOUR WORK - or no points! Is the number 4324 divisible by 0, 4, 5?
0 - NO, no number is divisible by 0 4 - yes, b/c 24 is divisible by 4 5 - NO, because it does not end in 0 or 5
300
Label the numerical coefficient, constant term and variable: z + 7
numerical coefficient = NONE variable = z 7 = constant term
300
n+31 if n = 8
What is 39
300
Solve for the variable: 4d - 3 = 45
d = 12
300
It costs $11 for each ticket to the movie theatre, and $25 for snacks. The total spent is $56. How many people went to the movie.
variable = how many people went to the movie. 11n + 25 = 56
300
SHOW YOUR WORK - or no points! Is the number 5284 divisible by 3, 4, or 9?
3 - NO, b/c 5+2+8+4 = 19, 19 is not divisible by 3 4 - Yes, b/c 4 goes evenly into 84, so the whole number is divisible by 4 9 - NO, b/c 5+2+8+4 = 19, 19 is not divisible by 9
400
Label the numerical coefficient, constant term and variable: 3n
Numerical Coefficient = 3 Variable = n Constant term = NONE
400
n/4 + 6 if n = 24
What is 12
400
Solve for the variable: n/4 - 6 = 9
n = 60
400
One half of the class is 13. How many people are in the class?
variable = # of people in the class. n/2 = 13
400
SHOW YOUR WORK - or no points! Is the number 12 375 divisible by 5, or 9?
5 - YES - b/c it ends in a 5 9 - YES - 1+2+3+7+5 = 18, 18 is divisible by 9!
500
Label the numerical coefficient, constant term and variable: 4z - 3
Numerical Coefficient = 4 variable = z constant term = 3
500
3x - 7 if x = 11
What is 26
500
Solve for the variable: 7z +2 =51
z = 7
500
Rory wants a hat that costs $42. He also wants some shirts, that cost $20 each. In total he spends $142. How many shirts did he buy? (do not answer the problem, just give me your equation!)
variable = how many shirts he buys. 42 + 20n = 142
500
SHOW YOUR WORK - or no points! Is 13 624 divisible by 2, 4, 8?
2 - yes, b/c it is even. 4 - yes, b/c 4 goes evenly into 24. 8 - yes, b/c 8 goes into 624, 78 times
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