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alina1380 [7]
2 years ago
11

-1/3d + 4/5 = 3/4 solve for the variable.

Mathematics
2 answers:
vekshin12 years ago
7 0
-1/3d+4/5=3/4
-1/3d=3/4-4/5
-1/3d=15/20-16/2
-1/3d= -1/20 multiply everything by -1
1/3d=1/20
d=1/20 over 1/3
d=3/20

Gnesinka [82]2 years ago
4 0

Answer:  x equals 12

Step-by-step explanation:

hope this helped

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What we know:
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Since we need an equation to represent the number of chairs in m meeting rooms, we would multiply the amount of chairs per meeting room (325) by m. This amount is c. So the equation becomes:

c = 325m

Now the question asks for the amount of chairs if there are 7 meeting rooms in the hotel. To find this, substitute 7 for m into c = 325m.

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Answer:
The equation is c = 325m, and the amount of chairs if m equals 7 is 2,275.
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