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What does mean stand for in math form?
"Mean" is the same as "average". It's equal to (sum of all the items in the group) divided by (number of items in the group).
An order is placed for n items each costing p dollars and twice as many items each costing 9 dollars more. Write a simplified expression for the total cost of the order?
The expression is np + 2n(p+9). This can be simplified into 3np + 18n.
What are 8 x 4 equals?
8 x 4 equals 32. If you are unsure how to do this, imagine that you have four groups of eight items in each group. Then just add up all of the eight items in each group.
What lets you put equal groups together?
Combining equal groups together is possible through the concept of multiplication. By multiplying the number of groups with the number of items in each group, you can determine the total number of items. For instance, if you have 3 groups with 4 items in each group, you can put them together by multiplying 3 x 4 to get a total of 12 items.
Which of the following scenarios could be represented by the expression 12x plus 7y?
The expression 12x + 7y represents a scenario where you have 12 items of one type (represented by x) and 7 items of another type (represented by y), and you want to find the total value when each item is worth a certain amount. For example, if x represents apples priced at $12 each and y represents oranges priced at $7 each, then 12x + 7y would give you the total cost of buying those items.
