To calculate: The number of ways in which she can run her errand.
Answer to Problem 3OE
The number of waysare
Explanation of Solution
Given information:
In one of the four supermarkets she can buy hamburger rolls for a cookout. Also, in 1 of three bakery shops she can buy hamburger rolls for a cookout.
Formula used:
Fundamental counting principle states that if there are m ways to make a selection and n ways to make a second selection then there are
Calculation:
Consider the provided information that in one of the four supermarkets she can buy hamburger rolls for a cookout. Also, in 1 of three bakery shops she can buy hamburger rolls for a cookout.
There are 4 choices between supermarkets.
There are 3 choices between bakery shops.
She can buy one of each.
Recall that Fundamental counting principle states that if there are m ways to make a selection and n ways to make a second selection then there are
Therefore, the number of ways to select a combination is,
She has 12ways to run her errand.
Thus, the number of combinations are
Chapter 15 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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