Carl bought 19 apples of 2 different varieties to make a pie. the total cost of the apples was $5.10. granny smith apples cost $0.25 each and gala apples cost $0.30 each. how many of each type of apple did carl buy?

Carl bough 12 $0.25 apples and 7 $0.30 apples.

Step-by-step explanation:

This problem can be solved by using the following calculation:

We are going to call A apples to those of $0.25 each, and B apples to those whose value is $0.30. If Carl had 19 A-type apples, he would have spent $4.75, as 0.25 x 19 is equal to 4.75. Every time we subtract an A-type apple and add a B-type one, the total cost will rise 5 cents, because 0.30 - 0.25 is equal to 0.05.

So, as with 19 0.25 apples the total cost would be of $4.75, and the total cost of the apples that Carl effectively bought was of $5.10, the difference of both situations would be of $0.35. As 35/5 is equal to 7, and 5 cents were going to be added each time a $0.30 apple was added and a $0.25 apple was substracted, we can affirm that, of those 19 apples effectively bought by Carl, 12 costed $0.25 (12 x 0.25 = 3) and 7 costed $0.30 (7 x 0.30 = 2.10), therefore reaching the total cost of $5.10 (3 + 2.10 = 5.10).

steve should create a type of business report called a business plan. the correct option among the options that are already given in the question is the last or the fourth option. this business report created by steve will actually influence the investors about investing their money in steve's business. this business report will have all the details about the business, the amount of investment required and the amount of expected profit.