bronkosarecool
03.05.2020 •
Mathematics
Write a system of equations to describe the situation below, solve using elimination, and fill in the blanks.
Two coworkers picked up some writing instruments at the office supply store. Sarah selected 9 boxes of pencils and 4 boxes of ballpoint pens, paying $25. Next, Heather spent $40 on 4 boxes of pencils and 9 boxes of ballpoint pens. How much does a box of each cost?
A box of pencils costs $, and a box of pens costs $.
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Ответ:
몰라요,하지만 난 여전히 포인트를 원해서 한국인이라는 가짜를 눈치 채지 못하고 크게 웃어요
Step-by-step explanation:
Ответ: