1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vsevolod [243]
3 years ago
8

About 71% of Earth’s surface is covered in water. If the surface area of the Earth is about 196,900,000 square miles, About what

percent of the Earth’s surface is not covered in water? How many square miles is this?
Mathematics
2 answers:
Nezavi [6.7K]3 years ago
6 0

Answer:

29 percent of the earth is not covered by water and 57,101,000 Square miles

Step-by-step explanation:

77julia77 [94]3 years ago
4 0

Answer:

29%, 196.9 square miles.

Step-by-step explanation:

You might be interested in
PLEASE HELP
Gelneren [198K]

Step-by-step explanation:

8.9x-5 and -6.8x+8

8.9-6.8 + -5+8

2.1x+3

4 0
3 years ago
a parent died and left an estate to four children. One inherited 1/2 the second inherited 1/8 and the third inherited 1/4. how m
djyliett [7]
1/2+1/8+1/4=7/8    
4/8+1/8+2/8=7/8

1-7/8 = 3/8
the fourth on inherited 3/8 of the estate.
7 0
3 years ago
Can you tell me how to factorise 6b+24bc
Kamila [148]
When we factorise an expression, we are looking for simple factors that multiply to get the original expression. Usually it is very natural to factorise something like a quadratic in x. For example:

x^2 + 3x + 2 = (x+1)(x+2)

But there are other situations where factorisation can be applied. Take this quadratic:

x^2 - 9x = x(x-9)

This second example is closer to the question in hand. Just like x was a common factor to both x^2 and -9x, we are looking for a common factor to both 6b and 24bc. The common factor is 6b.

Hence 6b + 24bc = 6b(1 + 4c).

I hope this helps you :)
3 0
3 years ago
Read 2 more answers
Helen and Nicola share some money into the ratio 1:3 , what fraction of the total does Helen have ?
Aneli [31]

Answer:

If we expect that it is respective then Helen will have 25% of the money

Step-by-step explanation:


8 0
3 years ago
1!+2(2!)+3(3!)+...+n(n!)=(n+1)!-1<br><br><br><br><br>​
anyanavicka [17]

Step-by-step explanation:

OK, let's assume it this way:

<em>Sn=1.1!+2.2!+3.3!+...+n.n!</em><em>=</em><em>(</em><em>2</em><em>‐</em><em>1</em><em>)</em><em>.</em><em>1</em><em>!</em><em>+</em><em>(</em><em>3</em><em>-</em><em>1</em><em>)</em><em>.</em><em>2</em><em>!</em><em>+</em><em>(</em><em>4</em><em>-</em><em>1</em><em>)</em><em>3</em><em>!</em><em>+</em><em>.</em><em>.</em><em>.</em><em>+</em><em>(</em><em>(</em><em>n</em><em>+</em><em>1</em><em>)</em><em>-</em><em>1</em><em>)</em><em>.</em><em>n</em><em>!</em>

Sn=1.1!+2.2!+3.3!+...+n.n!=(2‐1).1!+(3-1).2!+(4-1)3!+...+((n+1)-1).n!<em>=</em><em>(</em><em>2</em><em>.</em><em>1</em><em>!</em><em>-</em><em>1</em><em>!</em><em>)</em><em>+</em><em>(</em><em>3</em><em>.</em><em>2</em><em>!</em><em>-</em><em>2</em><em>!</em><em>)</em><em>+</em><em>(</em><em>4</em><em>.</em><em>3</em><em>!</em><em>-</em><em>3</em><em>!</em><em>)</em><em>+</em><em>.</em><em>.</em><em>.</em><em>+</em><em>(</em><em>(</em><em>n-1</em><em>)</em><em>n</em><em>!</em><em>-</em><em>n</em><em>!</em><em>)</em><em>=</em><em>(</em><em>2</em><em>!</em><em>-</em><em>1</em><em>!</em><em>)</em><em>+</em><em>(</em><em>3</em><em>!</em><em>-</em><em>2</em><em>!</em><em>)</em><em>+</em><em>(</em><em>4</em><em>!</em><em>-</em><em>3</em><em>!</em><em>)</em><em>+</em>

Sn=1.1!+2.2!+3.3!+...+n.n!=(2‐1).1!+(3-1).2!+(4-1)3!+...+((n+1)-1).n!=(2.1!-1!)+(3.2!-2!)+(4.3!-3!)+...+((n-1)n!-n!)=(2!-1!)+(3!-2!)+(4!-3!)+<em>.</em><em>.</em><em>.</em><em>+</em><em>(</em><em>n</em><em>+</em><em>1</em><em>)</em><em>!</em><em>-</em><em>n</em><em>!</em><em>=</em><em>(</em><em>n</em><em>+</em><em>1</em><em>)</em><em>!</em><em>-</em><em>1</em><em>!</em><em>=</em><em>(</em><em>n</em><em>+</em><em>1</em><em>)</em><em>!</em><em>-</em><em>1</em>

and boom problem solved

7 0
2 years ago
Other questions:
  • Arleen has a gift card for a local lawn and garden store. She uses the gift card to rent a tiller for 4 days. It cost $35 per da
    8·2 answers
  • Which is the best approximation of 90?<br> A.9.5<br> B.11.4<br> C.7.6<br> D.11.1
    11·2 answers
  • Bill bought a large submarine sandwich and cut it into 8 equalpieces. He ate 1/4 of the sandwich. How can you write how much of
    11·1 answer
  • Can the numbers 24, 32, 40 be the lengths of the three sides of a right triangle? Explain why or why not.
    12·2 answers
  • Find the values of x and y
    11·2 answers
  • Easy question!
    10·1 answer
  • Y=(x^2+2x)/(x+2) if x=2. Find x^2​
    11·1 answer
  • Calculate the average daily balance, finance charge, and new balance using the average daily balance method.
    8·1 answer
  • RJ and Ethan want to split a taco party pack from Taco Bell. The party pack costs $13.25. Together, RJ and Ethan. have $14.50. S
    6·1 answer
  • 11 points!!!!!!!! and brainliest
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!