SOLUTION: 1.The sum of the digits of a two-digit number is 8. The number with the digits interchanged is 16 less than thrice the original number. Find the number.
2.the units digit of a two
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Question 988820: 1.The sum of the digits of a two-digit number is 8. The number with the digits interchanged is 16 less than thrice the original number. Find the number.
2.the units digit of a two-digit number is one less than one-half the tens digit. The number with the digits interchanged is 5 more than thrice the sum of the digits. Help me thanks
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
For this kind of problem, I would start with
= the tens digit
= the ones digit
= the value of the original number
= the value of the number with the digits interchanged
1. The sum of the digits of a two-digit number is 8 translates as
.
The number with the digits interchanged is 16 less than thrice the original number translates as
.
Now you have two equations. You can simplify the second one a bit:
--->--->--->---> .
--->--->
--->--->--->
--->--->--->--->--->
2. The units digit of a two-digit number is one less than one-half the tens digit translates as
--->--->---> .
The number with the digits interchanged is 5 more than thrice the sum of the digits translates as
--->--->---> .
--->--->
--->--->--->--->
--->--->--->
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