Which equation represents the total price (p) paid when buying books (b) that cost $3.99 each? How much do 13 books cost?
2 answers:
Answer:
The answer is D. p = 3.99b; $51.87.
Step-by-step explanation:
In this case first we have to represent the equation and then find the total price of the books in order to find the correct answer. This is:
Total price = p
Number of books = b
Cost of each book = $3.99
This is a case of multiplication were we have to multiply the number of books by the cost of each one to find the total price, this is:
Having this we can calculate the total price of buying 13 books, this is:
The total price of buying 13 books at $3.99 is $51.87.
The answer is D. p = 3.99b; $51.87.
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Answer:
The number of parents who volunteered to bring refreshments is 16.
Step-by-step explanation:
The information provided is:
N = 84
n (S) = 35
n (S ∩ R) = 11
n (R) = 1.5 × n (S' ∪ R')
Compute the value of n (S ∪ R) as follows:
Now compute the value of n (R) as follows:
Thus, the number of parents who volunteered to bring refreshments is 16.