Question

what must be added to x:y to make it c:d?
please answer this quickly with steps.

Answer 1

Answer:

this is from which class?

Answer 2

Answer:Use the factorial function in your answer: 11 + 3! (1*2*3, which equals 6) + 13 = 30

Change the mathematical base system of the equation in certain places (this can give an answer with multiple bases or a single base): For single bases: ..For multiple bases... 910+910+910=309. A number which appears as "30" when written in a different base system doesn't represent "thirty" in base ten. When written in base 9 as 309, is equivalent to twenty seven in base ten: (2710). Or using all the same base: 135+115+15=305 in base five, which is equivalent to (810+610+110=1510) in base ten. Or 139+159+19=309 in base nine.

Use the commas given in the question to your advantage: In many countries the comma (,) is used instead of the full stop (.) to represent a decimal point. For example "3.5" (three and a half) can be written as "3,5". This allows for the solution 11,3 + 15,7 + 3 = 30.

Step-by-step explanation: