𝕊𝕚𝕤𝕪𝕡𝕙𝕖𝕒𝕟@programming.dev to Memes@lemmy.ml · 1 year agoWho even uses Celsiusprogramming.devimagemessage-square71fedilinkarrow-up176arrow-down11cross-posted to: memes@sopuli.xyz
arrow-up175arrow-down1imageWho even uses Celsiusprogramming.dev𝕊𝕚𝕤𝕪𝕡𝕙𝕖𝕒𝕟@programming.dev to Memes@lemmy.ml · 1 year agomessage-square71fedilinkcross-posted to: memes@sopuli.xyz
minus-squarebandwidthcrisis@lemmy.worldlinkfedilinkarrow-up1·1 year agoFor C to F, double it, subtract a 10th of the result, add 32. E.g. 20 double is 40, minus a 10th is 40-4, so 36, add 32 giving 68. If you ignore fractions when you take the tenth, you can do it in your head to be pretty close. 17, x2 is 34 a 10th is about 3, so 34-3 is 31, +32 is 63 (actually 62.6).
For C to F, double it, subtract a 10th of the result, add 32.
E.g. 20 double is 40, minus a 10th is 40-4, so 36, add 32 giving 68.
If you ignore fractions when you take the tenth, you can do it in your head to be pretty close.
17, x2 is 34 a 10th is about 3, so 34-3 is 31, +32 is 63 (actually 62.6).