3 years ago

Anyone know how to do these?

Mathematics

1 answer:

FinnZ [79.3K]3 years ago

6 0

Your doing it just fine that's the correct way .

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E + f =48<br> e=3f<br> Plz help - thanks

Novosadov [1.4K]

Answer:

$given \: \\ \\ e = 3f \\ e + f = 48 \\ \\ 3f + f = 48 \\ 4f = 48 \\ f = \frac{48}{4} \\ f = 12 \\ so. \\ e = 3 \times 12 = 36$

<h2><em>plzz mark it as a brilliant ans</em></h2>

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2 years ago

Work out th following in standard form 3000 x 5000

Sedaia [141]

5x10^3 is the answer

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3 years ago

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3 years ago

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Zigmanuir [339]

Answer:

the system of equation has infinite solution

Step-by-step explanation:

$5x_1 + x_2 = 0$ , $25x_1 + 5x_2 = 0$

Solve the first equation for x_2

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Now substitute -5x1 on second equation

$25x_1 + 5x_2 = 0$

$25x_1 + 5(-5x_1)= 0$

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