From the picture above, if A + B = 8 (horizontally) and A + C = 13. Using other information that can be deducted from the picture, what is the value for A, B, C and D?
A + B = 8 (eqn i) C - D = 6 (eqn ii) A + C = 13 (eqn iii) B + D = 8 (eqn iv)
From eqn i: B = 8 - A (eqn v)
From eqn iii: A = 13 - C (eqn vi)
Put eqn vi into eqn v: B = 8 - 13 + C B = -5 + C B = C - 5 (eqn vii)
From eqn ii: C = 6 + D (eqn viii)
Put eqn viii into eqn vii: B = 6 + D - 5 B = 6 - 5 + D B = 1 + D (eqn ix)
From eqn iv: D = 8 - B (eqn x)
Put eqn x into ix: B = 1 + 8 - B B + B = 1 + 8 2B = 9 B = 9 ÷ 2 B = 4.5
From the picture above, if A + B = 8 (horizontally) and A + C = 13. Using other information that can be deducted from the picture, what is the value for A, B, C and D?
A + B = 8 (eqn i) C - D = 6 (eqn ii) A + C = 13 (eqn iii) B + D = 8 (eqn iv)
From eqn i: B = 8 - A (eqn v)
From eqn iii: A = 13 - C (eqn vi)
Put eqn vi into eqn v: B = 8 - 13 + C B = -5 + C B = C - 5 (eqn vii)
From eqn ii: C = 6 + D (eqn viii)
Put eqn viii into eqn vii: B = 6 + D - 5 B = 6 - 5 + D B = 1 + D (eqn ix)
From eqn iv: D = 8 - B (eqn x)
Put eqn x into ix: B = 1 + 8 - B B + B = 1 + 8 2B = 9 B = 9 ÷ 2 B = 4.5
From eqn x: D = 8 - 4.5 D = 3.5
From eqn viii: C = 6 + 3.5 C = 9.5
From eqn vi: A = 13 - 9.5 A = 3.5
Answer: A = 3.5, B = 4.5, C = 9.5, D = 3.5
BY Riddles Repository - Answers
Warning: Undefined variable $i in /var/www/tg-me/post.php on line 283
Secure video calling is in high demand. As an alternative to Zoom, many people are using end-to-end encrypted apps such as WhatsApp, FaceTime or Signal to speak to friends and family face-to-face since coronavirus lockdowns started to take place across the world. There’s another option—secure communications app Telegram just added video calling to its feature set, available on both iOS and Android. The new feature is also super secure—like Signal and WhatsApp and unlike Zoom (yet), video calls will be end-to-end encrypted.
Look for Channels Online
You guessed it – the internet is your friend. A good place to start looking for Telegram channels is Reddit. This is one of the biggest sites on the internet, with millions of communities, including those from Telegram.Then, you can search one of the many dedicated websites for Telegram channel searching. One of them is telegram-group.com. This website has many categories and a really simple user interface. Another great site is telegram channels.me. It has even more channels than the previous one, and an even better user experience.These are just some of the many available websites. You can look them up online if you’re not satisfied with these two. All of these sites list only public channels. If you want to join a private channel, you’ll have to ask one of its members to invite you.
