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stepladder [879]
3 years ago
14

Help me with this one please!!!!!!!!

Mathematics
2 answers:
omeli [17]3 years ago
4 0
It is a
hope i helped

Nutka1998 [239]3 years ago
4 0
That would be 2 * 10^13 / 3 * 10^8

= 0.67 *  10^5 

= 6.7 * 10^4

Top left is correct answer
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Three times a number increased by ten is equal to twenty less than six times the number. Find the number
AysviL [449]

Let the number be x. "Three times a number increased by 10" is mathematically translated as

3x + 10

"is equal" is mathematically translated as twenty less than six times the number" is mathematically translated as

6x - 20

The whole sentence "Three times a number increased by ten is equal to twenty less than six times the number" is translated as

3x + 10 = 6x - 20

We now solve the above linear equation to find the number x

3x - 6x = - 20 - 10

- 3x = - 30

x = 10

Check answer

Three times a number increased by ten : 3 × 10 + 10 = 40

Twenty less than six times the number : 6 × 10 - 20 = 40

4 0
3 years ago
The sum of two numbers is 15, and the sum of their square is 137. What are the numbers?​
Verdich [7]

Answer:

11 and 4

Step-by-step explanation:

11 squared plus 4 squared = 137

11+4= 15

(I just quickly plugged a few numbers into a calculator that I thought would fit)

Hope this helps :)

7 0
3 years ago
Let f(x)=6(2)^x−1+4
cricket20 [7]
It equal 12 have a nice day
4 0
3 years ago
Read 2 more answers
How to factorise the difference of perfect squares. for the g on the top and j on the top
Fed [463]

Answer:

see explanation

Step-by-step explanation:

A difference of two squares is factored as

a² - b² = (a - b)(a + b)

(g)

1 - 81y²

= 1² - (9y)²

= (1 - 9y)(1 + 9y)

(j)

64x² - 25y²

= (8x)² - (5y)²

= (8x - 5y)(8x + 5y)

7 0
3 years ago
Simplify 3r+n2-r+5-2n+2
Ksenya-84 [330]

2r+7+2n+n2

Because I combined the ones with like terms.

8 0
3 years ago
Read 2 more answers
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