2 years ago

Evaluate

Mathematics

1 answer:

Annette [7]2 years ago

8 0

Answer:

=0.000342

Standard form is 3.4237×10 ${}^{-4}$

Step-by-step explanation:

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When 40% of a number is added to the number the result is 210

MAVERICK [17]

So it gives you the "= 210" part of it so you just need to figure out how to write "40% of a number is added to the number"

the questions already tells you that "the number" is "x"

so that means "40% of x is added to x"
instead of writing "add" you can replace it with a plus sign "+"
(40% of x) + x
another way to write 40% of x is 0.40x
so your equation is .4x + x = 210

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4 years ago

A semicircular window with a RADIUS OF 20 inches is going to be laminated with a sunblock coating that costs 1.50 PER SQUARE INC

yan [13]

Answer:

B:942$

Step-by-step explanation:

(pi*20^2)/2 is approximately 628.32

628.32*1.5=942.48

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2 years ago

Read 2 more answers

Pls solve!!!

iren2701 [21]

Thank you for posting your answer, but I don't think this answer is possible to solve, because of its lack of information.
You cant determine "u" if there is no "equal" sign with an answer following

But if you were looking to simplify the expression
The answer would be $15u + \frac{-4}{5}$