1.How can you use one 2 and one 6 to make 64?
2. A worm is trying to crawl out of a 3ft deep hole. If the worm crawls up 7 inches and then falls 2 inches each hour, how many hours will it take the worm to crawl out of the hole?
2007-01-12 11:07:32 · 10 answers · asked by :] 2 in Science & Mathematics ➔ Mathematics
1. 2 to the 6th power = 64.
2. Looks like a net gain of 5 inches ever hour so 7 hours.
2007-01-12 11:13:44 · answer #1 · answered by SnowWebster2 5 · 1⤊ 1⤋
1) 2 to the 6th power
2) The worm must go up 36 inches and goes up 5 inches per hour for the first 6 hours for a total of 30. On the 7th hour, it crawls up the rest of the 6 inches.
there fore, it is 6 hours and 12 minutes i think
2007-01-12 12:00:33 · answer #2 · answered by STAN 3 · 0⤊ 0⤋
1) 2^6=64
2) The worm must go up 36 inches and goes up 5 inches per hour for the first 6 hours for a total of 30. On the 7th hour, it crawls up the rest of the 6 inches.
>>So it takes 6 6/7 of an hour if you must do fractions.
2007-01-12 11:13:16 · answer #3 · answered by Professor Maddie 4 · 1⤊ 1⤋
Others have already done 1.
2. A trap here is to say that it makes a nett gain of 5 inches every hour, and so divide 36 inches by 5. However, the last time it doesn't slip back because it's reached the top. So, find how long it takes to get to within 7 inches of the top, and then add 1 hour for the final 7 ins.
2007-01-12 11:15:25 · answer #4 · answered by Hy 7 · 2⤊ 0⤋
Do you want us to help you, or just to do it for you? (sorry, but thats cheating. the point is not to answer the question, but to learn problem solving skills) I'm guessing that some smarty-pants have already done the latter. lawl.
that said, here are a few hints anyway:
1) try dividing by two a few times.
2) what is the TOTAL distance the worm travels in an hour?
how many inches in one foot?
how many TOTAL inches does the worm have to travel?
(note: Hy is correct, thats a nasty one, I didnt notice that at first, do what he said.)
Sorry if I seem a little impatient. Good luck. And next time maybe mention that you dont just want the answers, you want to know HOW to do them,(if that makes any sense.)
2007-01-12 11:28:29 · answer #5 · answered by WOMBAT, Manliness Expert 7 · 1⤊ 0⤋
2^6 = 64
5 inches per hour for 6 hours = 30, one more hour adds 7 inches, and its out of the hole.
2007-01-12 11:36:22 · answer #6 · answered by Anonymous · 1⤊ 0⤋
1) 64 = 2^6
2007-01-12 11:11:50 · answer #7 · answered by Puggy 7 · 1⤊ 1⤋
1. 2^6
2. 7 hours
2007-01-12 11:15:18 · answer #8 · answered by tyder21 4 · 1⤊ 1⤋
1. 2 raised to the 6th power
2007-01-12 11:12:27 · answer #9 · answered by fcas80 7 · 1⤊ 1⤋
fill the hole with water and the worm will float out.
2007-01-12 11:22:03 · answer #10 · answered by pc187 2 · 0⤊ 2⤋