3 years ago

What rational number is equal to -2/3

Mathematics

1 answer:

valkas [14]3 years ago

7 0

Answer:

Here is a little prompt to help you out.

Step-by-step explanation:

Two rational numbers are said to be equivalent if we divide each decimal value will be the same. that is if a/b is equivalent to c/d if a/b=p.

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2 years ago

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lesya692 [45]

$2m=-4n-4 \ \ \ |\times (-3) \\
3m+5n=-3 \ \ \ |\times 2 \\ \\
-6m=12n+12 \\
\underline{6m+10n=-6} \ \ \ |\hbox{add the sides of the equations} \\
10n=12n+12-6 \\
10n=12n+6 \ \ \ |-12n \\
-2n=6 \ \ \ |\div (-2) \\
n=-3 \\ \\
2m=-4n-4 \\
2m=-4 \times (-3)-4 \\
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3 years ago

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Cloud [144]

Answer:

x ≈ 2.91644500708

Step-by-step explanation:

The equation can be simplified to ...

2(4^x) +4(4^x) = 342

6(4^x) = 342

4^x = 57

Taking logarithms, we get ...

x = log₄(57) = log(57)/log(4)

x ≈ 2.91644500708

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