suppose that the function f(x)=3x+10 represents the cost to rent x movies a month from an internet movie club john now has 10 dollars how much more money does john need to rent 5 movies next month?
To find out how much more money John needs to rent 5 movies next month, we need to calculate the cost of renting 5 movies.
Given that the function f(x) = 3x + 10 represents the cost to rent x movies a month, we can substitute x = 5 into the function to find the cost of renting 5 movies:
f(5) = 3*5 + 10
= 15 + 10
= 25
So, the cost of renting 5 movies next month is $25.
To determine how much more money John needs, we subtract the amount he already has ($10) from the cost of renting 5 movies ($25):
Amount John needs = Cost of renting 5 movies - Amount John already has
= $25 - $10
= $15
Therefore, John needs $15 more to rent 5 movies next month.
To find out how much more money John needs to rent 5 movies next month, we need to calculate the total cost of renting 5 movies using the given function, and then subtract the amount of money John currently has.
The function given is f(x) = 3x + 10, where x represents the number of movies rented in a month.
To calculate the cost of renting 5 movies, we substitute x = 5 into the function:
f(5) = 3(5) + 10
= 15 + 10
= 25
So, the cost of renting 5 movies is $25.
To find out how much more money John needs, we subtract the amount of money he currently has (which is $10) from the total cost of renting 5 movies:
Amount needed = Total cost of renting 5 movies - Current money
Amount needed = $25 - $10
= $15
Therefore, John needs $15 more to rent 5 movies next month.
amount needed to rent 5 movies is
3(5) + 10 = $25
He already has $10, so he needs an extra $15