092b08ee-let-p-pens-n-notebooks-if-p-11-n-substitute-and-find-number-of-notebook

Question

A store sells pens and notebooks. Pens cost $$2 each and notebooks 3 $$each. A customer buys some combination totaling $29 for 11 items. Let p = pens, n = notebooks. If p = 11 - n, substitute and find the number of notebooks bought.

Accepted Answer

7 notebooks

Answer

No integer solution exists because $29 cannot be composed of 11 items at those prices

Answer

5 notebooks

Answer

4 notebooks

A store sells pens and notebooks. Pens cost \$2 each and notebooks \$3 each. A customer buys some combination totaling \$29 for 11 items. Let p = pens, n = notebooks. If p = 11 - n, substitute and find the number of notebooks bought.