3 years ago

(CEFET – MG) Sendo , a metade do valor de y valeA)

Mathematics

1 answer:

Dahasolnce [82]3 years ago

6 0

What???????? are you saying?????

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Step-by-step explanation:

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Your job is to sort and sack marbles for sale. A bag contains 90 marbles, some red and some blue. If there are 60 blue marbles,

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Answer:

2:1

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90-60 = 30 red marbles

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The supplement of a angle 30 degrees less than twice the measure of the angle itself. Find the angle and supplement

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Answer:

The angle: $70\°$

The supplement: $110\°$

Step-by-step explanation:

By definition, if the sum of two angles is 180 degrees, then this angles are called "Supplementary Angles".

Let be:

$x$ the angle (in degrees) and $2x-30$ its suppplement (in degrees).

Therefore, you can write the following equation in order to find the angle and its supplement:

$x+2x-30=180$

Now, you must solve for "x". Then:

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Then:

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Ok

you do 3 X 6 and 3 X 6x first to get
8 - 18 -18x
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simplify and get 10-18x

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3 years ago