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Brrunno [24]
4 years ago
13

There is only one positive integer which is exactly twice the sum of its digits. find this 2 digit number

Mathematics
1 answer:
ad-work [718]4 years ago
8 0
There is only one positive integer which is exactly twice the sum of its digits. find this 2 digit number

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Y is directly proportional to the square root of x
Inessa [10]

Answer:

Step-by-step explanation:

y=k\sqrt{x}

60=k\sqrt{36\\}  =k6

k=60/6 =10

This is your equation

y=10\sqrt{x}

Put the numbers in

80=10\sqrt{x}

80/10=8 then you have to square this so

8^{2}=64

x=64

8 0
3 years ago
Please Help, I'm stuck on this question .
snow_lady [41]

Answer:

24y^15 - 24y^10 + 7

Step-by-step explanation:

f(2y^5)

= 3(2y^5)^3 - 6(2y^5)^2 +7

= 3(8y^15) - 6(4y^10) + 7

= 24y^15 - 24y^10 + 7

4 0
3 years ago
24 POINTS!!!!!!!!!!!!!
n200080 [17]
I think the correct answer is: A. The batting averages of the Tigers vary less than the batting averages of the Braves. Very sorry if I'm incorrect.
7 0
3 years ago
Read 2 more answers
To change a decimal to a fraction we route write the digit to the left or to the right of the decimal point over the appropriate
leonid [27]

Answer:

The digit goes to the right of the decimal point

Step-by-step explanation:

If you had \frac{1}{10}, you would convert that to 0.1, which is equivalent to the fraction form. The one goes on the right of the decimal point.

7 0
3 years ago
Consider f(x) = 1.8x – 10 and g(x) = −4.
erastova [34]

Answer:

Step-by-step explanation:

The input value at which f(x) = g(x) can be found by setting the right sides of each of those equal to each other and solving for x.

1.8x - 10 = -4 and

1.8x = 6 so

x = 3 1/3

The bold equation is the answer to the first part, and the second part is that x = 3 1/3

6 0
3 years ago
Read 2 more answers
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