A newspaper sells both paper and digital subscriptions. The newspaper reports that 1,800 total subscriptions were sold last mont
h and the total revenue from those subscription sales was $20,760. The digital subscriptions, d, cost $8 a month, and the paper subscriptions, p, cost $20 a month. Which of the following systems of equations could be used to solve for the number of each type of subscription that was sold by the newspaper last month?
1 answer:
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The pair two numbers whose difference is 14 and the product is as small as possible (i.e. -49) are (-7,7)
<h3>What are word problems?</h3>In mathematical concepts, word problems involve a crucial understanding of the problem and knowing which mathematical method and arithmetic operations are best suited to solving the problem.
If we assume that the smaller number should be = a and the larger number = a + 14.
Thus, their product (X) can be expressed as:
= a(a+14)
= a² + 14a
The smallest possible value implies the minimum value, i.e.
Thus,
2a + 14 = 0
a = - 14/2
a = -7
Therefore, we can conclude that the pair of two numbers whose difference is 14 and the product is as small as possible (i.e. -49) is (-7,7).
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