Answer:
<em>The number is 46</em>
Step-by-step explanation:
<u>Equations</u>
Suppose:
a = One digit of the number
b = Tens digit of the number
The sum of the digits is 10:
a + b = 10
The number expressed as two-digits quantity is ab, and its value is
10a+b
When we add 18 to that number, we have:
10a+b+18
And that is represented as the number reversed:
10a+b+18=10b+a
Simplifying:
9a+18=9b
Dividing by 9:
a + 2 = b
Substituting in the first equation:
a + a + 2 = 10
2a = 8
a = 4
b = a + 2 = 6
Thus the number is 46
H=-9/2
Divide both sides of the equation by -36
Any expression divided by itself equals 1
Either it is 2, or it is window. Take your pick, chum. Also, I do believe you need to learn how to spell "urgent".
Happy Thanksgiving, dear.
The first book was $6. The second book was $10. The last book was $20.
Hope this helps!