SOLUTION: Martin likes watching zombie movies. He predicts that the number of zombie movies, Z, he has seen can be modelled using the formula: Z= 3x - 54 b) Find how old Martin was when

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Martin likes watching zombie movies. He predicts that the number of zombie movies, Z, he has seen can be modelled using the formula: Z= 3x - 54 b) Find how old Martin was when       Log On


   



Question 757795: Martin likes watching zombie movies. He predicts that the number of zombie movies, Z, he has seen can be modelled using the formula:
Z= 3x - 54
b) Find how old Martin was when he saw his very first zombie movie.
c) How many zombie movies does Martin watch each year?
d) How old will Martin be when he has watched a total of:
60 zombie movies (ii) 100 zombie movies
e)Give two reasons why the results in part (d) could turn out to be wrong when he actually reaches those ages.

Answer by dkppathak(439) About Me  (Show Source):
You can put this solution on YOUR website!
z=3x-54 where z in number of movie seen and x is age
no movies
we can say z=0
0=3x-54
54/3=x
x=18 yrs so up to 18 yrs she has not gone to see any movie
b) first movie
means z=1
1=3x-54
3x=54+1=55
x=55/3
x=18 yrs 4 months answer
c)she see movies once in every 4 months
so in a year she see movie =12/4=3 times in year
answer she see movies 3 times in a year
d)
(i) if z=60
60=3x-54
60+54 =3x
3x=114
x=114/3
x=38 yrs
(ii) if z=100
100=3x-54
3x=100+54
3x=154
x=50 yrs 4 months
e) reason in actual it will not so such movie
(i) when a person reach to age of 38 yrs he/she will have lot of social responsibilities
(ii) when a person reach to 50 yrs age , age factor health social responsibilities exist .due to this reasons it may wrong
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