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Seize Your Chance To Win 2,000 Sapphires!

800 Replies
User
25 April, 2017, 12:50 PM UTC
00
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User
25 April, 2017, 12:51 PM UTC
-140
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User
25 April, 2017, 12:53 PM UTC
-145.53
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User
25 April, 2017, 12:53 PM UTC
Try -100
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User
25 April, 2017, 12:53 PM UTC

-100   But the problem posed is illogicalyou cant have  100-20X50  the right  must be (100+(-200))X50

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User
25 April, 2017, 12:54 PM UTC
-225
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User
25 April, 2017, 12:54 PM UTC

-140
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User
25 April, 2017, 12:54 PM UTC
-100 would be the correct answer.  I won
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User
25 April, 2017, 12:55 PM UTC
-100
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User
25 April, 2017, 12:57 PM UTC
-100
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User
25 April, 2017, 12:57 PM UTC
-140 :):)
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User
25 April, 2017, 12:57 PM UTC
-100
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User
25 April, 2017, 12:57 PM UTC
result 0
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User
25 April, 2017, 12:58 PM UTC
-127.639
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User
25 April, 2017, 12:58 PM UTC
-100
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User
25 April, 2017, 12:59 PM UTC
-140
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User
25 April, 2017, 12:59 PM UTC
-140
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User
25 April, 2017, 12:59 PM UTC
- 140
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User
25 April, 2017, 12:59 PM UTC

3x=90 x= 30 ...(1)

30 -2x=20, 2x=-10, x=5 ....(2)

5+ x²=25, x²=20, x=√20=4.472  ....(3)

(3) -(2) +(1)= ?

2√5-30x5= ?

-145.527