53. Chris's food truck sells grilled cheese sandwiches for $4 85 and deep
1 answer:
Answer:
The number of grilled cheese sandwiches sold was 132 and the number of deep fried Twinkies sold was 271
Step-by-step explanation:
Let
x -----> the number of grilled cheese sandwiches
y -----> the number of deep fried Twinkies
we know that
The system of equations that represent this scenario is equal to
x+y=403 ------> equation A
4.85x+2.95y=1,439.65 ------> equation B
Solve the system by graphing
Remember that the solution is the intersection point both graphs
The solution is the point (132,271)
see the attached figure
therefore
The number of grilled cheese sandwiches sold was 132 and the number of deep fried Twinkies sold was 271
You might be interested in
Answer:
There is a 75.65% probability that at least 5 teenagers in a group of 7 watched a rented movie at least once last week.
Step-by-step explanation:
For each teenager, there are only two possible outcomes. Either they watched a rented video at least once during a week, or they did not. This means that we can solve this problem using the binomial probability distribution.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinatios of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
In this problem we have that:
The probability that a randomly selected teenager watched a rented video at least once during a week was 0.75. This means that .
What is the probability that at least 5 teenagers in a group of 7 watched a rented movie at least once last week?
Group of 7, so .
.
In which
So
.
There is a 75.65% probability that at least 5 teenagers in a group of 7 watched a rented movie at least once last week.