Question

Help me with my attached file ..

Answer 1

a)?

Answer 2

only c? i cn do the others

Answer 3

what did you get for b)

Answer 4

y=x-15

Answer 5

i dont know i am sorry

Answer 6

hm ok bro il try to wrk it out..thnks fr urhlp

Answer 7

does x have to be at least 15
?

Answer 8

i dont get that part how do we get the value of x if y is unknown.

Answer 9

y<80

Answer 10

UnkleRhaukus the answer states that x= 15 and y = 20, now can u explain me how to get it?

Answer 11

i think y = (S U F)'

Answer 12

i knw i am not sure abut the C) part

Answer 13

oh ok

Answer 14

ok:
the least posible value of x is 15, becouse 80+35 = 115 and that's not posible. So at least 15 students have to study bouth languaje.
Now, since the y set is biggest when x is biggest, the only posibility is that all the students of French are also students of Spanish, it means x = 35. In this case y = 20

Answer 15

got it?

Answer 16

@thushananth01

Answer 17

y part i dont undrstnd?

Answer 18

the picture is a litle missleading, becouse bouth sets are painted same size, but actualy the F is much smaller. So it can fit inside de S set. In this case x = F and F is included in S. So y =C( S). (C stands for complement)