lvasquev462
translate into algebraic expression
the product of three and a number increased by five
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yakeyglee
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Let \(n\) represent our number. How would we write three times that number (\(3 \times \))? How would we write that increased by five (\(+5\))?
e.cociuba
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x=3+x*5
e.cociuba
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x equals three, plus x, times 5
yakeyglee
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@e.cociuba, that's not quite correct. You should have an expression, not an equation.
amistre64
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the lack of commas makes this a bit ambiguous to me
lvasquev462
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so it will be n=3+x
e.cociuba
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k so then u help us all out here. im a bit confussed!
amistre64
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no
amistre64
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i see 2 ways of interpreting this .... which makes it ambiguous to me
the product of: (three and a number) increased by five
the product of: three and (a number increased by five)
amistre64
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the first option is my gut instinct tho
lvasquev462
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ok
amistre64
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how would you write the product of three and a number?
lvasquev462
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times 3
amistre64
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yes; but lets use 3*x just to be safe :)
then just add five to it
lvasquev462
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3*x+5
amistre64
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good
e.cociuba
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thats the same thing i did, i just did 3+x*5 (u just switched the 3 and 5)
e.cociuba
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rite?
amistre64
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your math sentence does not reflect the english wording.
lvasquev462
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can u help me with an another
lvasquev462
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fifteen less than twice a number
amistre64
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yours represents:
what is the sum of 3, and the product of 5 and a number
amistre64
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how would you write: twice a number
e.cociuba
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Oh well I’m sorry for confusing u guys with my English wording.
lvasquev462
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i am not sure
amistre64
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twice also can be read as "2 times"
so (2 times a number) can be written as?
lvasquev462
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n*2
amistre64
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good; and when we less that by fifteen .... which means we subtract 15 from it we get?
lvasquev462
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n*2-15
amistre64
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correct.
or another way that you can write it is:
2*x - 15
amistre64
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good luck ;)