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Mathematics 14 Online
OpenStudy (anonymous):

What is the LCM of 40 and 15?

OpenStudy (valerievoun):

least common multiple is 120

OpenStudy (badsheep):

40: 2 2 2 5 15: 3 5 LCM: 2 2 2 3 5 The Least Common Multiple (LCM) is: 2 x 2 x 2 x 3 x 5 = 120

OpenStudy (anonymous):

Which shows the prime factorization of 84? A. 2 • 2 • 2 • 3 B. 2 • 2 • 3 • 3 C. 2 • 3 • 3 • 7 D. 2 • 2 • 3 • 7

OpenStudy (griefer101):

D most likely

OpenStudy (valerievoun):

it is d

OpenStudy (badsheep):

no direct answers

OpenStudy (anonymous):

What is the least common denominator for the fractions 5/6 and 3/8 ? A. 14 B. 18 C. 24 D. 48

OpenStudy (badsheep):

d

OpenStudy (valerievoun):

thought you just said no direct answers @Badsheep

OpenStudy (griefer101):

Rewriting input as fractions if necessary: 3/8, 5/6 For (8, 6) the least common multiple (LCM) is 24. Therefore, the least common denominator (LCD) is 24. Rewriting as equivalent fractions with the LCD: 9/24, 20/24

OpenStudy (valerievoun):

and it is c

OpenStudy (griefer101):

yes it is C

OpenStudy (badsheep):

i wasn't talking to you the other guy told me that earlyer @valerievoun

OpenStudy (griefer101):

haha

OpenStudy (anonymous):

Which decimal is equivalent to 5 9/20 ? A. 5.45 B. 5.9 C. 5.92 D. 5.95

OpenStudy (valerievoun):

a

OpenStudy (badsheep):

its b

OpenStudy (griefer101):

5 9/20 = 5 + 9/20

OpenStudy (griefer101):

14/20

OpenStudy (anonymous):

Justin has 6 bags of dog food. His dogs eat 3/4 bag each day. How long will his dog food last? A. 4 1/2 days B. 6 3/4 days C. 7 days D. 8 days

OpenStudy (valerievoun):

lol no because 9 divided by 20 is .45 and so it would be 5 .45 @Badsheep

OpenStudy (badsheep):

what you do is divide 9 by 20, which gives you .45

OpenStudy (badsheep):

i meant a sorry

OpenStudy (valerievoun):

yeah you said it was b

OpenStudy (badsheep):

A. 5.95 B. 5.45 C. 5.92 D. 5.9 i was going off of this sorry

OpenStudy (anonymous):

Justin has 6 bags of dog food. His dogs eat 3/4 bag each day. How long will his dog food last? A. 4 1/2 days B. 6 3/4 days C. 7 days D. 8 days

OpenStudy (valerievoun):

it is 8 days

OpenStudy (griefer101):

yes u r right it is 8

OpenStudy (valerievoun):

medal & fan? @Kylaannray

OpenStudy (badsheep):

Assuming the same current is running through two separate coils, why is it easier to thrust a magnet into a wire coil with one loop than one with four loops?

OpenStudy (valerievoun):

this doesn't look like math @Badsheep

OpenStudy (badsheep):

no ones on the other subject

OpenStudy (badsheep):

its chem

OpenStudy (badsheep):

@valerievoun

OpenStudy (valerievoun):

hold up one second

OpenStudy (valerievoun):

@Badsheep

OpenStudy (valerievoun):

The magnetic field produced by an electric current in a coil of wire can be visualized as the superposition of the magnetic fields of the current loops which make it up. The fields of the individual current loops add inside the coil to produce a strong and fairly uniform magnetic field through the inside of the coil. A tightly wound coil is called a solenoid. @Badsheep

OpenStudy (badsheep):

i got it wrong

OpenStudy (valerievoun):

got what wrong @Badsheep

OpenStudy (badsheep):

and contacted the police. He sat there and waited as we all just looked at the pizza we were supposed to eat. It was really awkward! Plus what do you tip a guy that just had his car stolen? In the end no one was hurt and we still see that same delivery driver and laugh about the story with him to this day.

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