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zhuklara [117]
3 years ago
7

X+5/2 + x−3/3 =3 1/6

Mathematics
2 answers:
boyakko [2]3 years ago
4 0
I think the answer is x = -1/2
Nataly [62]3 years ago
3 0
The answer is x=-1/2
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What the equations are
strojnjashka [21]
So, first lets define our variables: 
 
let x = the number of dimes
let y = the number of nickels

so our first equation would be x+y = 16

Since dimes are 10 cents and nickels are 5 cents the next equation would be as follows: 

.10x+.05y = 1.35

now change the first equation so y = -x+16
now substitute:

.10x+.05(-x+16) = 1.35
then multiply so you get .10x+-.05x+0.8=1.35

combine like terms and you get .05x+0.8 = 1.35
then subtract 0.8 from both sides and you get .05x = 0.55 then subtract
and you get x = 11 then substitute 11 for where x should be and you should get y = 5

So, you have 11 dimes and 5 nickels 
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3 years ago
What is the slope of a line that is perpendicular to the line y = 8x + 5? −8 8
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If f x equals x -3 + g x equals 1 - x 2 - 9 find ( f og) (x and give any restrictions on its domain
evablogger [386]
\begin{gathered} f(x)=x-3 \\ g(x)=\frac{1}{x^2-9} \\ (\text{fog)(x)}=\frac{1}{x^2-9}-3 \end{gathered}

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D\colon(-\infty,-3)\cup(-3,3)\cup(3,\infty)

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1 year ago
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