Answer: 91
Step-by-step explanation:
Let adults tickets be a
Let students ticket be b.
The information in the question can be presented as an equation as:
a + b = 218 .......... i
8a + 5b = 1363 ......... ii
Multiply equation i by 5
Multiply equation ii by 1
5a + 5b = 1090 ........ iii
8a + 5b = 1363 ....... iv
Subtract iii from iv
3a= 273
a = 273/3
a = 91
Number of adult's ticket sold = 91
The temperature was -1°. 3 degrees below 0 is -3 that plus 14 is 11 minus 12 is -1
bearing in mind that 1Kg ≈ 2.2lbs.
so, if a baby is say 2.2lbs, and then it doubles in weight, to 4.4lbs.
well, we know when the baby was 2.2lbs it was exactly 1Kg, but when it went up to 4.4lbs, is it 2Kgs? well, yes, 2Kgs = 2.2 + 2.2 or 2(2.2).
so, multiplying the lbs value by some factor, will retain the Kg:lbs ratio.
<span>the answer is 71, because you don't need to break last piece of chocolate.</span>
