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belka [17]
3 years ago
5

(7) Math word problem Pleas help!

Mathematics
1 answer:
valkas [14]3 years ago
5 0
The last one i think is correct, hope i could help??
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Math again sadly i need help on
dalvyx [7]

Answer:

13x+12

Step-by-step explanation:

27x-14x=13

+12 because there is nothing else there

5 0
3 years ago
Read 2 more answers
The Sahara Desert has an area of approximately 9,400,400 km2. While estimates of its average depth vary, they center around 150
horrorfan [7]

It would take 65433661 years to re-create the Sahara Desert

<h3>How many years would it take to re-create the Sahara Desert?</h3>

The given parameters are:

Surface area = 9,400,400 km^2

Depth = 150 m

This means that the volume is

Volume = Surface area * Depth

So, we have

Volume = 9,400,400 km^2 * 150 m

Express as meter square

Volume = 9,400,400 * 1000000 m^2 * 150 m

Evaluate the product

Volume = 9,400,400 * 150,000,000 m^3

A small dump holds 20.5 m^3 for 30 seconds.

So, the duration is:

Time = (9,400,400 * 150,000,000 m^3)/(20.5 m^3 per 30 seconds)

Evaluate the product and quotient

Time =  2.0635024e+15 seconds

1 second = 3.171e-8 year.

So, we have:

Time =  2.0635024e+15 * 3.171e-8 year

Evaluate the product

Time = 65433661.104 years

Approximate

Time = 65433661 years

Hence, it would take 65433661 years to re-create the Sahara Desert

Read more about rates at:

brainly.com/question/19493296

#SPJ1

4 0
1 year ago
N=8 x=9<br> What is 2n+(-6)?
Margaret [11]
The answer is 10, you would multiply 8 by 2 because 8 represents N , it would be 16-6
7 0
3 years ago
Read 2 more answers
What Fraction Is Equivalent to 3/9
QveST [7]
Equivalent fractions of \frac{3}{9} =  \frac{1}{3},  \frac{2}{6} and so on..
3 0
3 years ago
Read 2 more answers
Use graph to answer questions
shutvik [7]

Answer:

\sin(  \alpha )  =   \frac{4}{5}

Step-by-step explanation:

as if we form an imaginary triangle with this line as hypotenuse

we get

  • base = 3 units
  • perpendicular = 4 units

using Pythagoras theorem:-

hyponteuse ² = perpendicular ² + base²

hyp² = 4² + 3²

hyp² = 16 + 9

hyp =  \sqrt{25}

hyp = 5 units

\sin( \theta )   =  \frac{perpendicular}{hypotenuse}  \\  \sin( \theta)  =  \frac{4}{5}

3 0
2 years ago
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