Answer:
number of boys[b]=49
let girl be [g]
According to the question:
2g+5=b
2g+5=49
2g=49-5
g=44/2
g=22
<u>number of girls in the Cafeteria is 22</u>
Answer:
Two gay girls :(
Step-by-step explanation:
Answer:
1. Not possible
2. Possible
3. 24
4. C
5. D
Step-by-step explanation:
Some key concepts to remember:
- One -to -one means each element has an element only it matches to. This is only possible when sets have the same number of elements. #1 doesn't but #2 does.
- To determine the number of one-to-one correspondence, use a factorial with the number of elements. 4 is the number and the factorial is 4! = 4*3*2*1 = 24.
- n(A) means the cardinal number of the set or the number of unique elements. Elements count only once even if they repeat. There are 5 in #4 and 12 in #5.
Quantity of water used to make a medicine :-
This quantity of water required to make a medicine = 1000 ml
Quantity of sucrose used to make a medicine = 150 ml
Quanity of saline solution used to make a medicine = 600 ml
The quantity of water to sucrose to saline solution needed to make a medicine as a ratio :-
Cutting each common zero in this ratio, we get :-
Dividing each number in the ratio by 5, we get the ratio :-
Since, the three numbers in this ratio doesn't have any common factors we can conclude that we have found out the simplest form of the ingredients needed to make the medicine .
Therefore, the ratio of water to sucrose to saline solution needed to make a medicine = 20:3:12
Data set:
31, 31, 32, 33, 35, 35, 35, 36
Median is the middle value of the data set.
Since there is 8 numbers involved, the median is the average of the 4th and 5th number.
(33 + 35)/2 = 68/2 = 34
The median is 34.