From personal advice to professional guidance, IDNLearn.com has the answers you seek. Ask any question and receive timely, accurate responses from our dedicated community of experts.

Sally wants to purchase some school supplies. Notebooks cost $3 each and pens cost $2 each. Sally is not allowed to purchase more than 12 items. Sally knows that she will need at least 4 notebooks and at least 5 pens to be prepared for school.
Write an equation that represents the constraints of Sally's purchasing.


Sagot :

You have to do 3x4 because each notebook is 3 dollars and she needs at least 4 of them for school and then do 2x5 because each pen cost at least 2 dollars and she needs at least 5 pens for school. So the equation would be (3x4)+(2x5)