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juciystar234
 3 years ago
8 6.2 divided by 5 + 7(0.91)
help me please
juciystar234
 3 years ago
8 6.2 divided by 5 + 7(0.91) help me please

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juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2My textbook says 13.13 so I was wondering how they got that. Can you show me/ Tell me how you got that answer because I'm kinda confused...

niduj123
 3 years ago
Best ResponseYou've already chosen the best response.0its easy bc its basic order of operations

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2Yeah I know NVM :) thanks

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1for this:\[\frac{8 6.2}{5 + 7(0.91)}\] you need to follow BODMAS  have you heard about that?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1it is known by other names as well, see here: http://en.wikipedia.org/wiki/Order_of_operations

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2Ok let me check it out hold on

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1look at the 2nd section "The standard order of operations"

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2Ok hold on hmm SO MANY WORDS!! D:

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2(not really so much)

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1good  so first thing to attack is the brackets

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1in this case the brackets just contain a number  so no actual operation to perform inside the brackets

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1we can therefore remove the brackets to end up with:\[\frac{8 6.2}{5 + 7(0.91)}=\frac{8 6.2}{5 + 7*0.91}\]

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2hmmm ok im confused...

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1lets jus concentrate on the denominator for now, we had:\[5+7(0.91)\]correct?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1now note that a(b) simply means a*b  agreed?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1so we can say that:\[5+7(0.91)=5+7*0.91\]

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1does that make sense now?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1good  now what should the next set of operations be?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1we have handled the brackets

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2sorry didnt mean to put >

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1it should be exponents and roots next  but you do not have any here so we go to the next one: multiplication an division

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1so what is 7 * 0.91 = ?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1correct, so now we end up with:\[\frac{8 6.2}{5 + 7(0.91)}=\frac{8 6.2}{5 + 7*0.91}=\frac{8 6.2}{5 + 6.37}\]now most people get confused here because they think the next thing to do is the division

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2wouldnt you add? or subtract?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1but what you need to remember is that you go through BODMAS for the numerator and the denominator seperately

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1hang on a second  I think I misread your question

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1I believe it was this instead:\[8 6.2 \div 5 + 7(0.91)\]

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1ok, sorry I originally interpreted it as:\((8 6.2) \div (5 + 7(0.91))\)

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1so lets start again  ok?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1\[8 6.2 \div 5 + 7(0.91)\]first step  brackets to get:\[8 6.2 \div 5 + 7(0.91)=8 6.2 \div 5 + 7*0.91\]next is exponents/root but we have none next is multiplication/division  we have both, so you did 7*0.91 = 6.37\[8 6.2 \div 5 + 6.37\]

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1so next we should do what?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1nope  have a closer look at what is still left

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2like left to right but switch add with division

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1it should be division next

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1so what is 6.2 divided by 5 = ?

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1(a quick trick to divide by 5 is to divide by 10 and then halve the result)

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2dw:1347581921786:dw

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2sorry i was drawing :P

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2ok :) so now how do i do it ? :

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1the /quick/ method or using long division like you attempted up there?

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2or like were did i mess up

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2my decimal messed me up..

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1the other way is 6.2 divided by 10 is 0.62 double that is 0.62 + 0.62 = 1.24 (sorry I incorrectly stated you halve the result up there  it should be double the result after dividing by 10)

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1ok, so we now have:\[8 6.2 \div 5 + 6.37=81.24+6.37\]

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1the rest should now be straight forward

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1but be careful with the signs

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2I got this part let me draw it for you

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2dw:1347582462471:dw

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1remember the 1.24 has a minus sign next to it

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1so this is really "1.24 + 6.37"

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2no thats not a negative its a minus

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1so it might be better to first do "8  1.24"

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1think of it in this way:\[8 6.2 \div 5 + 6.37=81.24+6.37=8+(1.24)+6.37\]

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1I was trying to explain why you had to do "1.24 + 6.37" previously

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2Yaaa i got it my text book says that but i needed to work it out thank you!!!!!

asnaseer
 3 years ago
Best ResponseYou've already chosen the best response.1yes  that is the correct answer

juciystar234
 3 years ago
Best ResponseYou've already chosen the best response.2Thanks once again!! :D
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