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vekshin1
3 years ago
10

What is the answer 14=31.7-3x

Mathematics
1 answer:
KengaRu [80]3 years ago
7 0

Answer:

x = 5.9

Step-by-step explanation:

Step 1: Write equation

14 = 31.7 - 3x

Step 2: Solve for <em>x</em>

<u>Subtract 31.7 on both sides:</u> -17.7 = -3x

<u>Divide both sides by -3:</u> x = 5.9

Step 3: Check

<em>Plug in x to verify if it's a solution.</em>

14 = 31.7 - 3(5.9)

14 = 31.7 - 17.7

14 = 14

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In the figure above, quadrilateral ABCD is a parallelogram. Let x represent the measure of angle GBF, y represent the measure of
ira [324]
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measure angle x = 40°
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Part (a): getting angle x:
In triangle BED, we have:
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measure angle BDE = 50°
Therefore:
measure angle DBE = 180 - (90+50) = 40°
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Since angle GBF is x, therefore:
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Part (b): getting angle y:
We know that the sum of measures of angles on a straight line is 180.
This means that:
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3 years ago
Four brothers and their sister have the average age 7. Four brothers have the average age 6. How old is the sister?
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Answer:

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Let x years be the age of sister. If four brothers and their sister have the average age 7, then

\dfrac{24+x}{5}=7.

Multiply this equation by 5:

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The sister is 11 years old.

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4 years ago
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