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bluepanda21
07.04.2020 •
Mathematics
5) Order the
rational numbers
on the number
line.
0.6, 1/4, 1/5, 6/8
Solved
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Ответ:
Julius’ original number was 3 & Laila cheated as accordingly number was 20 ! but she said 108 .
Step-by-step explanation:
Let Julius pick number x , So we have following instructions as :
Add three to your number and multiply the sum by five
⇒![5(x+3)](/tpl/images/0585/4253/f843a.png)
"Now take that number and subtract seven from it and tell me the new number.” “Twenty-three,”
⇒![5(x+3)-7 = 23](/tpl/images/0585/4253/7a1bc.png)
⇒![(x+3)=6](/tpl/images/0585/4253/daee0.png)
⇒![x=3](/tpl/images/0585/4253/1547e.png)
So , Julius’ original number was 3 .
In the next round Leila is supposed to pick a number between 1 and 10 and follow the same instructions. She gives her final result as 108. i.e.
⇒![5(x+3)-7 = 108](/tpl/images/0585/4253/bcecd.png)
⇒![x+3 = 23](/tpl/images/0585/4253/e03ed.png)
⇒![x=20](/tpl/images/0585/4253/8f5b3.png)
Therefore , Julius’ original number was 3 & Laila cheated as accordingly number was 20 ! but she said 108 .