Question

The formula pa - ne - e gives the profit p when a number of items n are each sold at a cost and expenses e are subtracted. If p = 4700, n = 4000, and e = 300, what is the value of a?

A. 0.85
B. 1.10
C. 1.18
D. 1.25
Solve the following expression: 41 - 6 - 53 - 90 = ?
A. 84
B. 64
C. 100
D. -108

Answer 1

The value of a, using the given profit formula, is 1.25. Additionally, the calculation of the given expression equals -108. Therefore, the correct answers are D for the first question and D for the second respectively.

Step-by-step explanation:

To find the value of a, we can use the given profit formula p = a × n – e. Inserting the provided values gives us 4700 = a × 4000 – 300. Solving for a leads us to the equation a × 4000 = 5000, and consequently, a = 5000 / 4000, which gives us a = 1.25. Hence, answer D is correct for the first question.

For the second question, the expression 41 – 6 – 53 – 90 calculates as follows: 41 minus 6 is 35, 35 minus 53 is -18, and -18 minus 90 equals -108. Therefore, answer D is correct for the second expression.