Uuurse. apexiearning. com
Apex Learning
Apex Learning
Apex Learning - Courses
L
12.3.3 Quiz: Solving Systems of Equations
Question 2 of 10
2 Points
ABC Bookstore sells new books, n, for $12, used books, u, for $8, and
magazines, m, for $5 each. The store earned $340 revenue last month. The
store sold 5 more used books than new books, and twice as many magazines
as new books. Using the substitution method, how many magazines, new
books, and old books did ABC bookstore sell?

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120