SOLUTION: How do I write an inequality for this problem : Adrian has $40 to spend and must buy a minimum of 20 donuts and brownies altogether. If x represents the number of donuts purchased

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Question 1147485: How do I write an inequality for this problem : Adrian has $40 to spend and must buy a minimum of 20 donuts and brownies altogether. If x represents the number of donuts purchased and y represents the number of brownies purchased, write and solve a system of inequalities graphically and determine one possible solution. ( DONUTS = 1.50 BROWNIES = 2.50)
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
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Adrian has $40 to spend and must buy a minimum of 20 donuts and brownies altogether. If x represents the number of donuts purchased and y represents the number of brownies purchased
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$1.5 price for a donut
$2.5 price for a brownie
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system%28x%2By%3E=20%2C1.5x%2B2.5y%3C=40%29

Since both are inclusive inequalities, the reference lines, both, are included.
No negative values allowed.
Only whole values allowed.


graph%28400%2C400%2C-1%2C24%2C-1%2C24%2C-%283%2F5%29x%2B16%2C-x%2B20%29

solutions are between the lines to the right of the intersection, and to the right of any x=20.


2.5y%3C=-1.5x%2B40
y%3C=-%283%2F5%29x%2B16
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y%3E=-x%2B20
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