The formula p=8n-30 gives the profit p when a number of items n are each sold at $8 and expenses totaling $30 are subtracted

a. If the profit is $170.00, how many items were bought

b. If the same number of items were bought but the expenses changed to $40, would the profit increase or decrease, and by how much

Question

Mathematics

Colten Larson

24 November, 10:05

The formula p=8n-30 gives the profit p when a number of items n are each sold at $8 and expenses totaling $30 are subtracted

a. If the profit is $170.00, how many items were bought

b. If the same number of items were bought but the expenses changed to $40, would the profit increase or decrease, and by how much

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Answers (1)

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Jamar York · Answer 1

The profit here has decreased by $10. We can work this out through the following equation -

170 = 8n-30 = 200 = 8nn=25B: P = 8 (25) - 40 = 200 - 40P = 160