ile jest:
30% z 229
30% z 239 i
30% z 249 ? :) bo nie chce mi się liczyc xd
Hejoł
To ja ci policze jak ci się nie chce XP
30% z 229= 30/100*229 = 68,7
30% z 239= 30/100 * 239 = 71,7
i
30% z 249=30/100 * 249 = 74,7
JOŁ :P
229 - 100%x - 30%-----------------x = 229 * 30%/100%x = 6870/100x = 68,7=========================239 - 100%x - 30%---------------x = 239 * 30%/100%x = 7170/100x = 71,7=========================249 - 100%x - 30%---------------x = 249 * 30%/100%x = 7470/100x = 74,70
1. 68,7
2. 71,7
3. 7,47
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Hejoł
To ja ci policze jak ci się nie chce XP
30% z 229= 30/100*229 = 68,7
30% z 239= 30/100 * 239 = 71,7
i
30% z 249=30/100 * 249 = 74,7
JOŁ :P
229 - 100%
x - 30%
-----------------
x = 229 * 30%/100%
x = 6870/100
x = 68,7
=========================
239 - 100%
x - 30%
---------------
x = 239 * 30%/100%
x = 7170/100
x = 71,7
=========================
249 - 100%
x - 30%
---------------
x = 249 * 30%/100%
x = 7470/100
x = 74,70
1. 68,7
2. 71,7
3. 7,47