Karina is 15. Her brother, Hector, is less than half her age. Write an inequality about Hector's age
1 answer:
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<h2><em><u>Ans</u></em><em><u>wer</u></em><em><u>:</u></em></h2>
Let m<6 be X
140° + X = 180°
X = 180° - 140°
X =40°
Given:
In a two-digit number, the tens digit is 5 less than the units digit.
The number itself is five more than three times the sum of its digits.
To find:
The number.
Solution:
Let the two digit number is ab. So,
Tens digit is 5 less than the units digit.
...(i)
The number itself is five more than three times the sum of its digits.
...(ii)
Using (i) and (ii), we get
Putting b=8 in (i), we get
Therefore, the required number is 38.