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neonofarm [45]
3 years ago
8

Solve this proportion: 1/c+5=2/3

Mathematics
1 answer:
Fittoniya [83]3 years ago
6 0
\frac{1}{c} +5=\frac{2}{3}\ \|\ subtract\ 5\ to\ both\ sides  \\\\\frac{1}{c} =\frac{2}{3}-5\\\\\frac{1}{c} =\frac{2}{3}-\frac{15}{3}\\\\\frac{1}{c} = \frac{-13}{3}\\\\-13c=3\ \ | \ divide \ both \ sides\  by\ (-13)\\\\c=-\frac{3}{13}



\frac{1}{c+5} = \frac{2}{3} \\\\2(c+5) =3\\\\2c+10=3\ \ |\ subtract\ 10\ to\ both\ sides  \\\\ 2c=3-10 \\\\2c=-7 \ \ | \ divide \ both \ sides\  by\  2 \\\\c=-\frac{7}{2}\\\\c=-3.5
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Melania has two jobs. During the day she works as an office clerk, and in the evening she works as a cashier. her office job pay
bulgar [2K]
Lets x = # of hours Melania  works at <span>office clerk
and y = </span># of hours Melania  works as a <span>cashier

x + y = 38 so x = 38 - y
13x + 9.25y = 434

substitute </span> x = 38 - y into 13x + 9.25y = 434

13x + 9.25y = 434
13(38 - y) + 9.25y = 434
494 - 13y + 9.25y = 434
                  -3.75y = -60
                          y = 16
x = 38 - y so x = 38 - 16 = 22

answer
Melania  works at office clerk = 22 hours
Melania  works as a cashier = 16 hours
7 0
3 years ago
Equiangular polygon has how many sides exterior angle is 25
Softa [21]
If the exterior angle is 25o then the interior angle is its supplement.
The interior angle = 180 - 25 = 155 degrees. All angles are equal in the interior.
The sides aren't.

I'm hoping you get an answer besides mine. I can take you so far.
The formula for an interior angle is 

180(1 - 2/n) = Interior angle. When you solve this you get
180(1 - 2/n) = 155
1 - 2/n = 155/180
1 - 2/n = 0.86111111
- 2/n = 0.8611111 - 1
2/n = 0.13888888
2 / 0,1388888 = n
n = 14.4

You can google equiangular polygon theorem to see where I got the formula. The problem is that I really don't know how to interpret the answer. It looks like you have 14 conguent sides and 1 that is 0.4 left over. The figure might still be equiangular.
5 0
3 years ago
How to write 47 in mayan notation
Shalnov [3]

Answer:

....

..

-

Step-by-step explanation:

so basically idk how to type it on a computer but 4 dots then under those four dots, 2 dots and a line under it

6 0
3 years ago
Plz help me with this question ASAP <br><br> Thank you so much
aniked [119]

Answer:

t1= -4

Given that result we must now find "n"

7 0
3 years ago
9 more than the quotation of -36 and -4
Hoochie [10]
-36/-4 + 9
Or
36/4 + 9

I think , I hope this helps!
3 0
3 years ago
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