Answer:
Step-by-step explanation:
surface area = 2πrL + 2πr² = 14πL + 98π
14πL + 98π = 880
14πL = 880-98π
L = (880-98π)/(14π) ≅ 55.9 cm
I'm doing the same thing right now and I'm lost.
5 packs of stamps and 7 packs of envelopes. There will be a total of 70 envelopes and stamps.
Answer:
8 mins 56 secs
Step-by-step explanation:
3 minutes and 21 seconds divided by 3 laps is 1.07 so it takes her 1 minute and 0.7 sec for each lap then u just multuply 1.07 by 8 and u get 8.56 meaning 8 mins and 56 secs. hope i helped :)
Hope this helps! the answer is option (A). if you still don’t understand after looking at my solution feel free to clarify ya
