A number increased by 3 and then multiplied by 5 is at least -10. What are the three lowest natural number values this can be?
1 answer:
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<u>Answer-</u>
<u>Solution-</u>
The total money that you have or maximum amount that you can spend = $20
Let's assume,
x = Number of tomatoes bought
y = Number of red peppers bought
Price of tomatoes per pound = $2.50
Price of red peppers per pound = $4
Hence,
Total cost of tomatoes = $2.5x
Total cost of red peppers = $4y
As you can spend at most (any amount less than or equal to) $20, so
Taking a point as origin (0, 0) and then putting it in the equation,
As this satisfies, so the shaded region will be towards that point i.e origin
From the graph, the two solutions that are on the boundary line are (8, 0), (5, 0)
