The inventory of a restaurant needs replenishing of its supply of apples. The food supplier charges $7/bag of apples. The restau
1 answer:
You might be interested in
Answer:
The total cost in dollars of going to the baseball game for
people of a family can be given as:
Step-by-step explanation:
Given:
At a baseball game:
Cost of car parking = $5
Cost per ticket = $21
To write an equation in the form of representing the total cost of going to the baseball game.
Solution:
The total number of people in the family is =
Using unitary method to find the cost of tickets for persons.
If 1 ticket costs = $21
<em>Then, tickets will cost in dollars</em><em> = </em>
Fixed rate for car parking = $5
Thus, the total cost in dollars of going to the baseball game for
people of a family can be given as:
We want to find the mean of two elements in a set, given that we know the other elements of the set and the mean of the whole set.
The answer is: -490
-----------------------------
For a set with N elements {x₁, x₂, ..., xₙ} the mean is given by:
Here we know that:
- The mean of the set is 0.
- The set has 1000 elements.
- 998 of these elements are ones, the other two are A and B.
We want to find the mean of the values of A and B.
First, we can start by writing the equation for the mean:
We can rewrite this as:
And we have 998 ones, then:
Now we have B isolated.
With this, the mean of A and B can be written as:
So we can conclude that the mean of the other two numbers is -490.
If you want to learn more, you can read: