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katovenus [111]
2 years ago
5

Solve : x/3-2/5 = 2x/15-3/5

Mathematics
1 answer:
svetoff [14.1K]2 years ago
6 0

Step-by-step explanation:

x/3-2/5=2x/15-3x

5x-6=2x-9

5x-2x=-9+6

3x=-3

3x/3=-3/3

x=-1

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A party rental company has chairs and tables for rent. The total cost to rent 6 chairs and 5 tables is $63. The total cost to re
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Answer:

1.75dollars - the value of each chair,  10.5 dollars - the value of each table

Step-by-step explanation:

The value of chair is x, the value of table is y. Then 6chairs cost 6x, 5 tables cost 5y. 6x+5y= 63

Then the value of 2 chairs is  2x,  for 3 tables  it is equal to 3y. 2x+3y=35

We have the system of equations6x+5y= 63 and 2x+3y=35

Multiply the second one by -3

-3(2x+3y)= -3*35

-6x-9y= -105.

Plus the first equation and the second one multiplied by -3 (the right side to the right side and the left side to the left side with sign= between them)

6x+5y-6x-9y= 63-105

-4y= -42

y=10.5 dollars - the value of a table

6x+5*10.5=63

6x= 63-52.5

6x=10.5

x=1.75dollars - the value of a chair

6 0
3 years ago
Identify the seventh term in the sequence in which a1=4096 and r=1/2
Alex777 [14]
An=a*q^(n-1)
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