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Rudik [331]
3 years ago
8

Write 15.4 as a mixed number

Mathematics
2 answers:
Alex17521 [72]3 years ago
7 0
15.4 as a fraction is 15 4/10 simplify even further and it is 15 2/5
rjkz [21]3 years ago
6 0
Hey brother, hope your having a nice day!

So 15.4 as a fraction would become 15 4/10 then we can simply further,

So the final answer would be 15 2/5

Hope this helps :)
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The cube root of 8 is 2.
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7x(3x2) and (7x3)x2​
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System of Equations <br> Need help<br> Trig
Yanka [14]

Looks like the system is

\begin{cases}-2x+y+6z=1\\3x+2y+5z=16\\7x+3y-4z=11\end{cases}

We can eliminate y by taking

(3x+2y+5z)-2(-2x+y+6z)=16-2(1)

\implies3x+2y+5z+4x-2y-12z=16-2

\implies7x-7z=14

\implies x-z=2

so that z=x-2, and

(7x+3y-4z)-3(-2x+y+6z)=11-3(1)

\implies7x+3y-4z+6x-3y-18z=11-3

\implies13x-22z=8

Substitute z=x-2 into this last equation and solve for x:

13x-22(x-2)=8

\implies13x-22x+44=8

\implies-9x=-36

\implies x=4

Then

z=x-2

\implies z=4-2

\implies z=2

Plug these values into any one of the original equation to solve for y:

-2x+y+6z=1

\implies-2(4)+y+6(2)=1

\implies-8+y+12=1

\implies y=-3

Hence the solution is x = 4, y = -3, and z = 2.

6 0
3 years ago
What time is 5 3/4 hours after 9:22pm
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I think 4:45?...
......
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3 years ago
42:15 =<br> What is the ratio
vfiekz [6]
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8 0
2 years ago
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