Independent/dependent variables
Priya streams movies through a company that charges her a $5 monthly fee plus $1.50 per movie, m. The equation below represents the total amount Priya spends, c, streaming movies in a month.
c = 1.5m + 5
What is the independent and dependent variable?
IV: M, movies
DV: C, Total amount spent
7+d=27
D: 20
3x=24
x=8
A miniature golf course has a special group rate. You can pay $20 plus $3 per person when you have a group of 5 or more friends. Let f be the number of friends and c be the total cost. The equation c = 3f + 20 can be used to determine the total cost. Determine which variable is independent and which is dependent.
IV: F, number of friends
DV: C, total cost
H-10=88
H: 98
80/x=10
x=8
Emma was given 5 sea shells. Each week she collected 3 more. Let w be the number of weeks and s be the number of sea shells she has total. Which variable is independent and which is dependent?
IV: W, number of weeks
DV: S, number of seashells
Y+6=108
Y: 102
11b=132
b=12
Lincoln’s school is selling candles to raise money for a new track. Each candle costs $20. Which equation below represents the relationship between the number of candles sold, c, and the total amount of money raised, m?
a) m = 20c
b) c = 20m
c) m = 20 + c
d) c = 20 + m
A.) m=20c
91-C=24
C= 67
x/11=14
x=154
A taxi cab service charges a flat fee of $2.50 plus an additional $1.25 per mile. Show the relationship between the total cost and the number of miles.
IV: M, number of miles
DV: T, total cost
J-11=50
J: 61
762/x=2
x= 381