Independent check · RR04-C1
Show your reasoning and keep quantity labels attached to the numbers.
RR04-C1 · independent check
For identical notebooks with no fees, shop A charges 18 dollars for 6 notebooks; shop B charges 20 dollars for 5 notebooks. Which shop has the lower dollars per notebook? Show both rates and explain the comparison.
Independent check · RR04-C2
Show your reasoning and keep quantity labels attached to the numbers.
RR04-C2 · independent check
At constant rates sorter A handles 36 envelopes in 6 minutes, sorter B handles 24 envelopes in 4 minutes, and sorter C handles 40 envelopes but its time is not given. Compare A and B in envelopes per minute. Can you rank C against them? Explain what you need.