A two-digit number is twice the sum of its digit. If the tens digit is 7 less than the unit digit, find the number.
Let x= the unit digit
Then y= the tens digit
<span>And 10y+x= the number
</span>x+y= the sum of the digits
<span>Now we are told that 10y+x=2(x+y) ------1st equation </span>
<span>We are also told that y=x-7 ----------- 2nd Equation </span>
<span>So our equations to solve are: </span>
(1) 10y+x=2(x+y)
<span>(2) y=x-7
</span>
Hope it helps
answer:
15/8
- this is the simplest form.
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Answer:frfr it made hard
Step-by-step explanation:
Answer:
4 whole number, 7/24
Step-by-step explanation:
Thats correct i didnt had any explination because i wrote it on a paper
Answer: 3:14
Step-by-step explanation: there are 3 centers and if you add all the players you get 14
