Mathematics
10 Online
OpenStudy (anonymous):
Five less than the product of 7 and a number is equal to 3
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OpenStudy (texaschic101):
" product " is a multiplication problem
7n - 5 = 3
OpenStudy (anonymous):
thts not what trips me up, what screws me up is when it says less than the product. can you help me wit another one?
OpenStudy (texaschic101):
sure
OpenStudy (anonymous):
twice the sum of a number and 4 is 3, would this be 2+4x=3
OpenStudy (alexandervonhumboldt2):
2*(4+n)=3 i guess
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OpenStudy (texaschic101):
no...
2(4 + n) = 3
OpenStudy (anonymous):
so if it says twice or something similar it's distributing?
OpenStudy (texaschic101):
twice the sum...implies multiplying 2 times the sum (4 + n)....= 3
OpenStudy (anonymous):
ok, i realise this isn't hard, this is my kryptoninte rn for some reasone, can you help me with another one then
OpenStudy (alexandervonhumboldt2):
yeah
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OpenStudy (texaschic101):
ask away :)
OpenStudy (anonymous):
the difference of a number divided by 7 and 5 is equal to 2
OpenStudy (anonymous):
lemme do it
OpenStudy (alexandervonhumboldt2):
n/7 - 5=2 i tgink
OpenStudy (texaschic101):
this one is tricky
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OpenStudy (anonymous):
x/(7-5)=2
OpenStudy (anonymous):
no
OpenStudy (texaschic101):
I think so
OpenStudy (anonymous):
wait it's right?
OpenStudy (texaschic101):
I am not 100% sure...
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OpenStudy (texaschic101):
its worded weird
OpenStudy (anonymous):
it's not right
OpenStudy (anonymous):
x-7/5=2?
OpenStudy (texaschic101):
hmmm....difference implies subtraction....x - 7/5 = 2...possibly
OpenStudy (texaschic101):
let me check..
@Vocaloid ...can you take a look at this please
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OpenStudy (anonymous):
it's wrong
OpenStudy (alexandervonhumboldt2):
the x-7/5=2 is the differenece of a number and 7 divided by 5 equals 2
OpenStudy (alexandervonhumboldt2):
i say x/7 - 5=2
OpenStudy (anonymous):
@AlexandervonHumboldt2 i did that and it said it was wrong
OpenStudy (texaschic101):
-n / (7/5) = 2 ??.....but thats not the difference is it ?
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OpenStudy (alexandervonhumboldt2):
hmmm
OpenStudy (anonymous):
no that would be the negative of a number right?
OpenStudy (texaschic101):
lol...yes...I am running out of ideas
OpenStudy (anonymous):
y is this so difficult?
OpenStudy (texaschic101):
@Directrix ...help
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OpenStudy (texaschic101):
its the wording
OpenStudy (anonymous):
i realise
OpenStudy (texaschic101):
@FibonacciChick666 ..can you take a look at this
OpenStudy (texaschic101):
somebody will know this
OpenStudy (texaschic101):
n/7 - n/5 = 2 ???
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OpenStudy (anonymous):
just googled it, thts the right answer
OpenStudy (texaschic101):
thats just messed up...lol...lucky guess
OpenStudy (fibonaccichick666):
ok, so what is up?
OpenStudy (anonymous):
wait no, tht was wrong, it gave me the answer, its (y/7)-5=2
OpenStudy (texaschic101):
we figured it out...the wording just messed with our brains
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OpenStudy (anonymous):
i still dont get this stuff very well can we do another one?
OpenStudy (texaschic101):
oops...guess we didn't figure it out
OpenStudy (fibonaccichick666):
uh, sure but if it was the difference one the post like two up is correct
OpenStudy (anonymous):
nine more than the quotient of a number and 2 equals 3
OpenStudy (anonymous):
9(x/2)=3
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OpenStudy (texaschic101):
(n/2) + 9 = 3
OpenStudy (fibonaccichick666):
close spatter, but remember more usually implies addition
OpenStudy (anonymous):
ok, i was thinking multiplication for some reason
OpenStudy (fibonaccichick666):
that is usually the word of
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OpenStudy (texaschic101):
true..." of " means multiply..." is " means equals.....math has its own language
OpenStudy (fibonaccichick666):
and as a side note, if we are nitpicking, you have to have 9+ for the last one, not +9
OpenStudy (texaschic101):
oh yes...your right...the wording is very important in these types of problems
OpenStudy (anonymous):
i put @texaschic101 answer in and it was right so i dont think the computer is being to picky
OpenStudy (anonymous):
ok, so one more?
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OpenStudy (anonymous):
the sum of a number times 4 and 5=2
OpenStudy (fibonaccichick666):
so what do you think?
OpenStudy (anonymous):
x(4+5)=2
OpenStudy (fibonaccichick666):
close, but you have the sum of( a number times four and 5) is..
OpenStudy (fibonaccichick666):
I always read these backwards to be honest
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OpenStudy (anonymous):
so wait thats what it was asking for right?
OpenStudy (fibonaccichick666):
not what you wrote
OpenStudy (texaschic101):
4n + 5n = 2 ??
OpenStudy (fibonaccichick666):
what you wrote is the product of a number and the sum of four and 5 is 2
OpenStudy (fibonaccichick666):
no tex
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OpenStudy (anonymous):
ahh, see i dont think of like that
OpenStudy (fibonaccichick666):
did you check out the sheet I linked to? It has some good examples of common phrases
OpenStudy (anonymous):
doin it rn
OpenStudy (texaschic101):
n(4 + 5) = 2 ??
OpenStudy (anonymous):
x+4*5=2?
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OpenStudy (fibonaccichick666):
no, what you have above is the sum of a number and the product of 4 and 5 is 2
OpenStudy (fibonaccichick666):
and tex, yours is the product of a number and the sum of 4 and 5 is...
OpenStudy (anonymous):
the sum of a number = x+
OpenStudy (texaschic101):
but it says " of a number TIMES 4 and 5 "....so isn't their multiplication involved
OpenStudy (fibonaccichick666):
think of the word sum as a function. It has this format sum(______and______)=____+_____
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OpenStudy (anonymous):
times 4 and 5= (4+5)=2
OpenStudy (fibonaccichick666):
there is, but not where you have it
OpenStudy (anonymous):
x+(4+5)=2
OpenStudy (fibonaccichick666):
no, that is the sum of a number and the sum of 4 and 5 is 2
OpenStudy (texaschic101):
lol....Fibonacci...your killin me here
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OpenStudy (anonymous):
2+(4*5)=2?
OpenStudy (anonymous):
i'm going to drop out of HS if this isn't right lol
OpenStudy (fibonaccichick666):
"the sum of \(\color\red{\text{a number times 4}}\) and\(\color\red{ 5}\)=2"
OpenStudy (fibonaccichick666):
no, that was not correct, but don't drop out. I highlighted the necessary pieces of our function.
OpenStudy (anonymous):
(4*5)+x=2
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OpenStudy (fibonaccichick666):
so the sum of ____ and ___ here is the red part. So we end up with 4n+5=2
OpenStudy (fibonaccichick666):
the and acts as a divider
OpenStudy (fibonaccichick666):
they are separate entities
OpenStudy (anonymous):
ok, im in shock tht I didn't realise that
OpenStudy (texaschic101):
my brain hurts
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OpenStudy (anonymous):
six less than the quotient of a number and 5 equals 2
OpenStudy (fibonaccichick666):
I will highlight the separate entities