You can set up a proportion, Lydia.
7/40 = 3/x
Cross-multiply to obtain
7x = 120
x = 120/7 = 17 1/7 cookies
1 Expert Answer
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
