-1/49. If you take (9+2) which is equal to 11. 18-11 is equal to 7 which puts 7 on the top. You then take 18-361 which gives you 343. You then divide the entire thing by 7/7 because both 7 and -343 are divisable by 7. That gives you -1/49.
Answer:
A=C/x-By/x
Step-by-step explanation:
Answer:
adult=10
Child=7
One adult and one child=10+7=17
Step-by-step explanation:
Let a be the price of an adult ticket
c = price of the child ticket
2a+4c = 48
5a+2c = 64
Multiply the second equation by -2 and add to the first equation
2a+4c = 48
-10a-4c = -128
---------------------
-8a +0c = -80
Divide by -8
-8a/-8 = -80/-8
a = 10
Now find c
2a+4c=48
2(10)+4c=48
20+4c=48
4c=48-20
4c=28
4c/4=28/4
c=7
Answer:
7 is the correct answer. brainliest plese
Answer with Step-by-step explanation:
We have to prove that
is true for all sets A and B
Let 
Then 
or 
and 
or 
Hence,
Conversely ,Let
Then x belongs to A and x does not belongs to B then
x belongs to A- B
Or x belongs to A and x belongs to B then x belongs to 
Hence, 
Therefore,
