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3 years ago

Help on geometry !!!( pic ) Solve for X:

Mathematics

1 answer:

SVEN [57.7K]3 years ago

4 0

Answer:

x = 4

Step-by-step explanation:

These are vertical angles. This means that the angle measurements of both are equal to each other. Set the angles equal to each other:

3x + 20 = 2x + 24

Note that you are solving for the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 2x and 20 from both sides:

3x (-2x) + 20 (-20) = 2x (-2x) + 24 (-20)

3x - 2x = 24 - 20

Simplify. Combine like terms:

3x - 2x = 24 - 20

x = 24 - 20

x = 4

x = 4 is your answer.

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3 years ago

It took Leo 3 hours to type a 4125-word essay. Sarah typed her 3800-word essay in 3 hours and 10 minutes. At these rates, how mu

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Answer:

Sarah would take 35 minutes longer than Leo to type 5500 word essay

Step-by-step explanation:

Let us solve the question

∵ It took Leo 3 hours to type a 4125-word essay

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∴ Leo's rate = 4125 ÷ 3 = 1375 words/hour

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2 years ago

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3 years ago

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3 years ago

Explain why please and make sure it is in full detail

Marysya12 [62]

Step-by-step explanation:

well,

(y - 7)² = (y - 7)(y - 7)

remember how to multiply 2 expressions ?

you have to multiply every term of one expression with every term of the other expression and sum the results all up (incl. considering their individual signs, of course).

so, when we do the multiplication, we get

(y - 7)(y - 7) = y×y - 7×y - 7×y + (-7)×(-7) =

= y² - 14y + 49

and that is clearly different to y² - 49

FYI

y² - 49 is the result of

(y - 7)(y + 7)

because

y×y + 7×y - 7×y + (-7)(7) = y² - 49

8 0

2 years ago

Read 2 more answers