Question

Please help, I was doing this fraction question, but I'm not sure what I'm doing wrong :(

Answer 1

http://prntscr.com/fj2exj

Answer 2

there is something seriously wrong with this question
where does it come from?

Answer 3

I was just looking at it, and it comes from my assigned homework

Answer 4

your answer is correct, the question has a mistake in it

Answer 5

it says "use the distributive property"

there is no distributive property here
multiplication distributes over addition, i.e. \[a(b+c)=ab+ac\]
you have no addition here, there is nothing to distribute
tell your teacher there is a mistake in this question

Answer 6

oh, so because of PEMDAS, it doesn't distribute at all?

Answer 7

if you like, i will tell them
let me know where you got the question from (be specific) and I will write them

Answer 8

there is no such thing as "pemdas" either, but that is neither here not there
multiply means multiply,
you have answered the question correctly \[7\times \frac{5}{21}\times \frac{-6}{7}=\frac{7\times 5\times -6}{21\times 7}\]\[=\frac{5\times -6}{21}=-\frac{15}{7}\]

Answer 9

oops typo there, i meant \[-\frac{10}{7}\]

Answer 10

Oh, with the parenthesis would I have to multiply each by 7?

Answer 11

no, not unless there was a plus sign but there is no plus sign, it is a times sign
who gave you this question?

Answer 12

I think so, the question didn't say whether it was multiplication or a variable. So I assumed it was a multiplication problem.

Answer 13

Should I just see what the answer is?

Answer 14

your answer is correct

Answer 15

x looks like x not a multiplication sign.
and it's my math lab i guess.

Answer 16

i think that is a times sign
\(x\) looks like that, and no one would write \[x-\frac{6}{7}\]

Answer 17

there are not supposed to be two symbols next to each other like that in any case
you should never write \[a\times -b\] it should be \[a\times (-b)\] this question is seriously messed up

Answer 18

the questions that are on mymathlab are like that.
that's way students spend 32 hours on doing some stupid question to get points.

Answer 19

no wonder people come out of school all confused about math
the teachers are clueless

Answer 20

not stupid ..complicated* :-|

Answer 21

Should I just purposely get it wrong to see the solution?

Answer 22

too bad for "mylabsplus" or whatever
sure go ahead
is it mymathlab?

Answer 23

Yes it is on Mymathlab :)

Answer 24

I should still ask my teacher about this question?

Answer 25

go ahead love to know what they think the answer is

Answer 26

you can tell your teacher for me that satellite says the question makes no sense for at least two reasons
a) one does not write \(a\times -b\) and more seriously
b) the distributive property says multiplication distributes over addition, not over multiplication

Answer 27

http://prntscr.com/fj2l24 this is the response I get

Answer 28

ok then i am going to be generous and say that the problem contains a typo

Answer 29

that is, it should have read \[\large 7\left(\frac{5}{21}+ -\frac{6}{7}\right)\]

Answer 30

http://prntscr.com/fj2lin this is the answer :o

Answer 31

my apologies to @Nnesha that is an effing \(x\) not a \(\times \) wow, this system really sucks

Answer 32

what do their times signs look like?

Answer 33

I don't think teachers can do much about it.. they also hate MML
an advice. ..take notes in class that will help you to prepare for the test
Mymathlabs notes are complicated and waste of time..

Answer 34

\[ \cdot\]

Answer 35

lol

Answer 36

Oh, this is a hybrid class.. So I guess I'm going to have to double efforts from my teacher's notes :'0 But I will take extra notes for sure :)

Answer 37

yeah like that

Answer 38

Ahh I see, thank you very much! :) my teacher assigned us to finish 3 sections tonight.

Answer 39

Can I ask another similar question to this?

Answer 40

sure why not