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FromTheMoon [43]
3 years ago
10

when the digits of a two digit number are reversed the new number is 54 less than the original number. if the sum of its digits

is 8, what is the original number
Mathematics
2 answers:
Marianna [84]3 years ago
6 0
17

71 - 17 = 54

1 + 7 = 8

17 is your answer

hope this helps
german3 years ago
5 0
Let the first and second digits of this two-digit number be f and d.

We are told that f+d = 8.

The original number is 10f+d. 

The value of 10d+f is 54 less than 10f+d:    10d+f = 10f+d-54. 

Let's eliminate f:  If f+d=8, then f=8-d.  Subst. 8-d for f in the equation  
10d+f = 10f+d-54:

10d + 8 - d = 10(8-d) - 54
                   = 80 - 10d - 54

Grouping all the terms in d on the left side results in 19d.

Grouping all the constant terms together on the right side results in
80-54-8, or 18.

Thus, we have 19d = 18

Unfortunately, this cannot be correct, since both f and d must be positive integers.

I've based my argument on the fact that a number such as 27 equals 2 times 10 plus 1.  Thus, if the two unknown digits form the 2-digit number fd, the actual number is 10f+d.
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s344n2d4d5 [400]

Answer:

Answer is 0.44

Step-by-step explanation:

44/100=0.44

3 0
3 years ago
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How am I supposed to integrate this?
svlad2 [7]
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which means the parabola lies above the x-axis over its entire domain. This means the area is given by

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4 0
4 years ago
PLEASEEEE HELP FOR BRAINLIST!!!!!!!!!
AysviL [449]

Same thing as before!

First, we can get rid of d(x) simply by looking at it because we can tell it's linear (it's a straight line). If we look at the table, we can see a(x) is also linear because it has a steady rate of growth. b(x) and c(x) both represent exponential growth. The curved shape of b(x) shows us this is exponential growth, and the exponent in c(x) tells us it's also exponential.

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2 years ago
The following function is probability Distribution function.
Rina8888 [55]

Answer:

9.60 ; - 60.96

Step-by-step explanation:

Given the function :

F(x)=6(x+1) /25, x=0, 1, 2, 3, 4.

x = 0

F(0)=6(0+1)/25 = 6/25 = 0.24

x = 1

F(1)=6(1+1)/25 = 12/25 = 0.48

x = 2

F(2)=6(2+1)/25 = 18/25 = 0.72

x = 3

F(2)=6(3+1)/25 = 24/25 = 0.96

x = 4

F(2)=6(4+1)/25 = 30/25 = 1.2

X ______0 _____ 1 ______ 2 ______ 3 ____ 4

P(x) ___ 0.24 __ 0.48 ___ 0.72 ____ 0.96 __ 1.2

Mean, μ = Σx*p(x) :

(0*0.24) + (1*0.48) + (2*0.72) + (3*0.96) + (4*1.2)

= 9.60

Variance : Σx²*p(x) - μ²

(0^2*0.24) + (1^2*0.48) + (2^2*0.72) + (3^2*0.96) + (4^2*1.2) - 9.6^2

= 31.2 - 92.16

= - 60.96

4 0
3 years ago
Franklin Porter purchased a waterbed for $4,500. He made a 20 percent down payment and financed the remainder. What amount did h
ira [324]
To find the amount that Franklin financed, you will calculate the amount he put down and subtract that from the original price because that is what he still owes.

0.2 x $4500 = $900
$4500 - $900 = $3600.

Porter financed $3600.

You also multiply 0.8 x $4500 because this represents the part out of 100% he still owes.  You will get the same answer this way.
3 0
3 years ago
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