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3 years ago

I think of a number, double it, and subtract two. I get nine. What is the number I began with?

Mathematics

1 answer:

DIA [1.3K]3 years ago

3 0

Answer:

5.5

Step-by-step explanation:

Well if you add two to nine and then divide in=t by two you get your answer

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Simplify the following 5√3+2√27+1/√3

Sati [7]

Answer:

5√3+2√27+1√3

=5√3+2×3√3+1√3

=√3(5+6+1)

=12√3

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3 years ago

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Help help help help please business

Margaret [11]

Answer:

x = 35°

Step-by-step explanation:

These are corresponding angles. When a transversal crosses 2 parallel lines, 4 angles are created at each intersection, and each pair of corresponding angles between those are congruent.

These angles are congruent, so you can set them equal to each other:

$2x+20=3x-15$

Then, just solve for x:

$20=x-15\\35=x\\x=35$

You can check that by plugging it back into both:

$2x+20=3x-15\\2(35)+20=3(35)-15\\70+20=105-15\\90=90$

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2 years ago

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2 years ago

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Evaluate the following (1.6 x 10 12) ÷ (8.01 x 10 23)

devlian [24]

To evaluate the given expression, we must follow the rules of PEMDAS (Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction) in solving.

Therefore, first calculate what's inside the parentheses:

(1619.2) / (8194.23)

Then perform the operation in between the parentheses:

(1619.2) / (8194.23) = 0.20

Therefore the answer after evaluating the expression is 0.20.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

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3 years ago

9/10_ 78/100 greater equal less than

emmainna [20.7K]

Answer:

9/10 > 78/100

Step-by-step explanation:

9/10 * 10/10 = 90/100

90/100 > 78/100

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