Find the measure of x in each figure.

Mathematics

1 answer:

Alex3 years ago

8 0

Step-by-step explanation:

Because 2x and 40° are complementary angles.

$\therefore \: (2x) \degree + 40 \degree = 90 \degree \\ \\ \therefore \: (2x) \degree = 90 \degree - 40 \degree \\ \\ \therefore \: (2x) \degree = 50 \degree \\ \\ \therefore \: 2x = 50 \\ \\ \therefore \: x = \frac{50}{2} \\ \\ \huge \red{ \boxed{ \therefore \: x = 25}}$

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After sales tax, an $81 cell phone costs $84.24. What is the sales tax percentage?

Igoryamba

Answer:

4% sales tax

Step-by-step explanation:

Take the original costs and subtract it from the price after sales tax.

$84.24-$81= $3.24

Divide 3.24 by 81

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2 years ago

Change the fraction to a percent.

ziro4ka [17]

The fraction in the picture is 1/8 .
That's equivalent to 12.5 %.
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Maybe what you want is the whole mixed number changed to percent.

-- The 5 alone is 500% .

-- The 1/8 alone is 12.5% .

-- When you puttum together and addum up,

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3 years ago

Read 2 more answers

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tatiyna

9514 1404 393

Answer:

₹14000

Step-by-step explanation:

Let c represent the cost price, and m represent the marked price.

c × (1 +40%) = m

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