Homework Help: social studies

Posted by gaby on Wednesday, January 16, 2013 at 7:28pm.

i need help!!!!! one type of lightning bug glows once every 1 1/2 seconds. how many times can it glow in 1 minute? and the other one is :
Bea can run 1/6 mile in 2 minutes. how long should it take her to run 2 miles? please help the teacher wont help me and i need these problems by tomorrow!!!!!! HELP!!!!

MATH - gaby, Wednesday, January 16, 2013 at 7:29pm
SORRY THE SUBJECT IS MATH NOT SOCIAL STUDIES.
social studies - gaby, Wednesday, January 16, 2013 at 7:35pm
please help me ms sue anyone
social studies - Ms. Sue, Wednesday, January 16, 2013 at 7:42pm
one type of lightning bug glows once every 1 1/2 seconds. how many times can it glow in 1 minute

Divide 60 by 1.5

Bea can run 1/6 mile in 2 minutes. how long should it take her to run 2 miles?

Cross multiply and solve this proportion for x.

(1/6)/2 = 2/x
social studies - Anonymous, Wednesday, January 16, 2013 at 7:49pm
So the first one is 40
social studies - Gabby, Wednesday, January 16, 2013 at 7:51pm
Second one is 3? I don't know
social studies - Gabby, Wednesday, January 16, 2013 at 7:53pm
Or is it 6?
social studies - Ms. Sue, Wednesday, January 16, 2013 at 7:56pm
(1/6)/2 = 2/x

(1/6)x = 4

x = 4/(1/6)

x = 4 * (6/1

x = 24 minutes to run 2 miles
social studies - Gabby, Wednesday, January 16, 2013 at 8:06pm
Thank you but you know what the problem is I showed to my teacher like I don't know how many times 24 and she said its wrong but I don't care I'm going to sure her and that's that. Was I right for the light bug 40?
social studies - Gabby, Wednesday, January 16, 2013 at 8:06pm
Show
social studies - Ms. Sue, Wednesday, January 16, 2013 at 8:12pm
Yes, 40 is correct for the first one about the lightning bug.

Another way to solve the miles/minutes problem is this way.

She runs 1/6 of a mile in 2 minutes. It must take her 12 minutes to run 1 mile. So she take 24 minutes to run 2 miles.
social studies - Gabby, Thursday, January 17, 2013 at 7:13pm
Thank you but guess what ? I showed her about the lightning bug and she said it was still wrong. I don't get it I got the other one right though do you think there's another way if not that's okay but thanks anyways.

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