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irina1246 [14]
3 years ago
13

Plz help The solution of the equation 2 d - 6 = 5

Mathematics
2 answers:
Monica [59]3 years ago
7 0
2d - 6 = 5
     + 6  +6
2d = 11
/2     /2
d = 5.5
Feliz [49]3 years ago
4 0
Hello,

Here is your answer:

The proper answer to this question is "d=9".

Here is how:

First write the equation:

2 d-6=5

Now solve:

Add 6 on both sides:

5+6=11

Now add subtract 2 on both sides:

11-2=9

d=9

If you need anymore help feel free to ask me!

Hope this helps!
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Help!! help!! help!! help!! help!! help!! help!! help!! help!!
oksian1 [2.3K]

Answer:

<em>(8.21, -20.79)</em>

Step-by-step explanation:

Given the simultaneous equation;

\frac{a}{b} - \frac{b}{2} = 10\\a - b = 29

From 2;

a = 29 + b ....3

Substitute 3 into 1;

\frac{29+b}{b} - \frac{b}{2}  = 10\\\frac{2(29+b)-b^2}{2b} = 10\\\frac{58+2b-b^2}{2b} = 10\\58+2b-b^2 = 20b\\b^2-2b-58 = -20b\\b^2-2b+20b -58 = 0\\b^2+18b-58 = 0\\

Factorize

b = -18±√18²-4(-58)/2

b = -18±√324+232/2

b = -18±√556/2

b = -18±23.58/2

b = -18-23.58/2 and -18+23.58/2

b = -41.58/2 and 5.58/2

b = -20.79 and 2.79

Since a = 29 + b

when b = -20.79

a = 29 - 20.79

a = 8.21

<em>Hence the solution to the system of equation is (8.21, -20.79)</em>

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3 years ago
What's 19/30 x 12/16?
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A car dealership's goal is to sell a mean of 25 cars per day. In one week, it sold the following numbers of cars each day:
LUCKY_DIMON [66]

Answer:

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Step-by-step explanation:

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3 years ago
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