If x + y = 12 and x = 2y, then x=

y = 4

x = 8

Step-by-step explanation:

here's the solution :-

we know, x = 2y

so,

=》x + y = 12

=》2y + y = 12

( because x = 2y )

=》3y = 12

=》y = 12 ÷ 3

=》y = 4

so, y = 4

now,

=》x = 2y

=》x = 2 × 4

( because, y = 4 )

=》x = 8

so, we get x = 8

answer: 7

step-by-step explanation: cause i checked it

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24