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nataly862011 [7]
3 years ago
7

Hello I’m in algebra and I need help on questions I’ll give brainlist ASAP!

Mathematics
1 answer:
dmitriy555 [2]3 years ago
4 0

Answer:

20

Step-by-step explanation:

if x is 20

6x would be 120

3x would be 60

120 + 60 = 180 which checks out

180 is the degree amount of a straight line

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Michelle is building a rectangular landing strip for airplanes .She has material to cover 1/1,500 of a square mile. The landing
ANEK [815]
I think that the missing word here is:
"with the amount of the material that Michelle has"

Let's say that her landing strip is x miles long, then its area would be:


\frac{1}{6} *x

We also know how big it is:

\frac{1}{6} *x= \frac{1}{1 500}

now, let's multiply both sides by 6:
\frac{6}{6} *x= \frac{6}{1 500}
1 *x= \frac{3}{750}
x= \frac{1}{250}


So the answer is that it would be x= \frac{1}{250} miles wide






3 0
4 years ago
What are the zeros of f(x) = x(x-7)?
den301095 [7]

Answer:

c. 0 and 7

Step-by-step explanation:

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3 years ago
Convert 2 3/4 to a decimal number
Solnce55 [7]

Answer:2.75

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Marcus spent 10 hours doing his homework last week. This week he spent 11 hours doing homework. He says that he spent 110% more
Andre45 [30]

Answer:

[ 11 - 10 ] / 10 x 100%

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Only 10% longer

7 0
3 years ago
The formula to find the area of the walls of a rectangular room is A=2h (l+b), h is wall height, l is room length, and b is room
Allisa [31]
Problems are very often written in a confusing way. This one couldn't possibly have been
written any more clearly.  Sooner or later, you have to stop telling yourself that you have
no clue, settle down, and carefully read the words that are right there on the page.

I'll tell you one more detail that's not in the problem:  "breadth" means "width".
 
Now.  The problem clearly tells you all of these things, in this exact order:

=>  Area of the walls = (2 x height) x (length + width)

=>  length = 8m
=>  width = 6m
=>  height = 2.5m 

Is there a reason you can't take the numbers for length, width, and height,
and write them in the formula for the area ?  Do I have to do all the work ?

Area = (2 x height) x (length + width)

Area = (2 x 2.5m ) x ( 8m    +   6m  )

Do the arithmetic inside the parentheses:

Area = (    5m     ) x (     14m          )

Do the multiplication:

Area = <u>70 m² .</u>

You will never see a problem that comes any closer to answering itself <em>for </em>you.
8 0
3 years ago
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