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2 years ago

Twice as number decreased by 9 is 7

Mathematics

1 answer:

marissa [1.9K]2 years ago

8 0

You said that. 2x - 9 = 7 . . . . . Add. 9. to each side: 2x = 16 . . . . . Divide each side by 2 : x = 8

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200 years ago, as it became more and more evident that the

svp [43]

Answer:

The American population was 20% of the British population.

Step-by-step explanation:

Let us call $A$ the american population, $B$ the British population before the migration, and $x$ the population that migrated from America to Britannia.

Now, the population $x$ that migrated was 20% of the american population:

$(1).\: \: x = 0.2A$ ,

and the same population $x$ increase the British population by 4%:

$x+B = 1.04B \\\\ (2). \:\:x = 0.04B.$

Combining equation (1) and (2) we get:

$0.2A = 0.04B$

$A = \dfrac{0.04B}{0.2}$

$\boxed{A = 0.2B}$

Thus, the American population was 20% of the British population.

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2 years ago

Parallelogram ABCD is shown.<br>

hichkok12 [17]

Answer:

Step-by-step explanation:

#4 part A= D

#4 part B = 76

Your question only states parrallelogram ABCD is shown, so I assume you only wanted those answers, GL

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1 year ago

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Elina [12.6K]

it take him 90 hrs to plow 60 acres

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago