3 years ago

What is the solution to the equation (8x-7) = 2(4x+9)

Mathematics

2 answers:

Shalnov [3]3 years ago

6 0

Answer:

There is simply no solution

Step-by-step explanation:

Slav-nsk [51]3 years ago

5 0

Answer:

Step-by-step explanation:

$8x - 7 = 2(4x + 9)$

$8x - 7 = 8x + 18$

$8x - 8x = 18 + 7$

$0 = 25$

There are no solutions to this problem.

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What is the value of X?

ladessa [460]

To find the answer make 25 equal to 6x+1
25=6x+1
25-1=24
24=6x
24/6=4
x=4

X=4

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The mean weight 20 students in a room is 65 kg one student one student who weight is 88kg went into the room what is the new mea

umka2103 [35]

The new mean is 66.09

<u>Explanation:</u>

Mean weight of 20 students = 65kg

One student with 88kg entered the room.

New mean = ?

$\frac{x_1+x_2+....+x_2_0}{20} = 65$

$\frac{x_1+x_2+....+x_2_0 + 88}{21} = ?$

The above equation can further be written as:

$x_1 + x_2 +....+x_2_0 = 65 X 20\\\\x_1 + x_2 +....+x_2_0 = 1300$

New mean = $\frac{1300 + 88}{21}$

= 66.09

Therefore, the new mean is 66.09

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3 years ago

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Alexxandr [17]

Answer:

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Step-by-step explanation:

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