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Kobotan [32]
3 years ago
9

Explain how science can help people save resources such as coal

Mathematics
2 answers:
vovikov84 [41]3 years ago
6 0
If we develop energy sources which do not use coal, using scientific research, our reliance on coal is diminished; for if we have a technology that doesn't use coal, we don't need to use coal. 
lana [24]3 years ago
5 0
They Can recycle it and reuse things so they won't waste instead of just throwing things away
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36 inches long divide by 7 and 12
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PLEASE DO THIS AND I WILL GIVE YOU BRAINLIEST AND ALOT OF POINTS ALSO DONT JUST DO THIS FOR THE POINTS OR YOU WILL BE REPOTED AN
ANTONII [103]

16. no i dont agree. 1 is the only number that can multiply and equal itself. also, 0.1 is not even a whole number

17. it took 19 to 21 hours. one way to show work is by long division. i dont know how to do another way im so sorry

18. because 15000 is the amount in 50 minutes, so just divide 50 minutes of phones by 50 to get one minute of phones

i am worn out i cant do the last one

8 0
3 years ago
A girl ran from her home to a store at the rate of 6 mph, and she walked back home at the rate of 4 mph. if it took 15 minutes f
viva [34]

Home is 0.6 miles away from the store

How to solve such time related questions?

The key concept for solving such questions is the relationship between speed, distance and time.

The relationship between them is Distance = Speed x Time

Given:-

Total time taken by girl to complete the trip = 15 minutes = \frac{1}{4} hours

Speed while riding going = 6 miles per hour

Speed while coming back = 4 miles per hour

Total time taken by girl  =

Time taken while going +   Time taken while coming back      - (1)

  Let x be distance from home to store

       \frac{x}{6} =  Time taken while going

\frac{x}{4} = Time taken while coming back

    Substituting in (1) we get

      \frac{1}{4} =  \frac{x}{6} + \frac{x}{4}

      \frac{1}{4} =  \frac{2x + 3x}{12}

       \frac{1}{4} =  \frac{5x}{12}

      x= \frac{12}{20}

    x = 0.6 miles

Thus home is 0.6 miles away from the store

Learn more about time related  here :

brainly.com/question/12759408

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6 0
1 year ago
. Angela rolls a pair of 6-sided number cubes. What is the probability that their sum is 11, given that their sum is greater tha
Fed [463]
D.1/36 because it has 6 sides which can have an possible outcome of 36
7 0
2 years ago
Read 2 more answers
A) Enter the corresponding values on the quadratic formula:
ollegr [7]

The answer is a = 0, b = -5, and c= 39.

<u>Step-by-step explanation</u>:

<u>step 1</u> :

A quadratic equation means that it should have at least one squared term.

<u>step 2</u> :

The standard form is ax² + bx + c = 0.

<u>step 3</u> :

The solution to the quadratic equation is usually written in the form

x = (-b ± √(b2 − 4ac))/(2a)

where a = coefficient of x^2

           b = coefficient of x

          c = constant term

<u>step 4</u> :

The given equation is -5x +32.

∴ The answer is a = coefficient of x^2 = 0

                           b = coefficient of x = -5

                          c = constant term = 39

7 0
3 years ago
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