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frez [133]
2 years ago
6

A total of 133 million square miles of the Earth's surface are covered in water. The ratio of the area covered in water to the a

rea of land is 7/3. Find the area of land on Earth.
URGENT! Whoever gets first correct answer is brainliest
Mathematics
1 answer:
Anni [7]2 years ago
6 0

Answer:

  • 57 million square miles

Step-by-step explanation:

Let the area of water is w and area of land is l.

<u>Their ratio is:</u>

  • w/l = 7/3

or

  • 133 / l = 7/3

Find the value of l

  • l = 133*3/7
  • l = 57 million square miles
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David is watching maria and alma race electric trains around track. Maria train can go around the track in 10 seconds. Almas tra
Nady [450]

Answer:

60 seconds.  

Step-by-step explanation:  

We have been given that Maria train can go around the track in 10 seconds. Alma train can go around the track in 12 seconds.

To find the number of seconds after which both trains will cross the finish line together the first time we will find LCM of 10 and 12. LCM will give us the smallest positive integer that is divisible by both 10 and 12.  

Multiples of 10 are: 10, 20, 30, 40, 50, 60, 70,...    

Multiples of 12 are: 12, 24, 36, 48, 60, 72, 84,..  

We can see that least common multiple of 10 and 12 is 60, therefore, it will take 60 seconds for both trains to cross the finish line together the first time.

6 0
3 years ago
-5 5/6 + (-8 4/5)= what show the work
djverab [1.8K]

Answer:

-13 2/3

Step-by-step explanation:

-5 5/6               5x6= 30 4x5= 20

+                                20/30= 2/3

-8 4/5

-----------      -5 + -8 = -13

-13  2/3

hope this helps

6 0
3 years ago
5
ziro4ka [17]

Answer:yhjghjghj

Step-by-step ex6757lanation:

4 0
3 years ago
A scale factor of less than one means
podryga [215]

Answer:

The sides get smaller

Step-by-step explanation:

Because anything times 1 gets smaller and it's no different for scale factor

8 0
3 years ago
Read 2 more answers
In a circle with center P and radius 10cm. If one of the chord is of length 12 cm.
juin [17]

Look at the attachment

The line bisects the cord which we have to find

  • Length of chord=12cm
  • Half of the cord=12/2=6cm
  • Radius=10cm

Its a right angle triangle

  • using Pythagorean theorem

\boxed{\sf P^2=H^2-B^2}

\\ \Large\sf\longmapsto P=\sqrt{H^2-B^2}

\\ \Large\sf\longmapsto P=\sqrt{10^2-6^2}

\\ \Large\sf\longmapsto P=\sqrt{100-36}

\\ \Large\sf\longmapsto P=\sqrt{64}

\\ \Large\sf\longmapsto P=8cm

Distance of the chord from centre is 8cm.

3 0
2 years ago
Read 2 more answers
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