Answer:
...Okay thank you!
Step-by-step explanation:
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The answer is A. 42
Solution:
Let x= ones digit, y=tens digit
1st condition (original number) : 7(x+y)=10y + x
2nd condition (new number by reversing the digits): 18+x+y=10x+y
simplifying:
1st condition: 6x=3y
2nd condition: x=2
substituting x=2 to 6x=3y
<span>y=4</span>
Step-by-step explanation:
sec X = WX/XY = 37/12 = 3 1/12
or 3.083
