2x+7y=1
Y=4x-8
Is (4,8) a solution of the system

(4,8) is not a solution

Step-by-step explanation:

Check the point in both equations to see if it is a solution to both

2(4) +7(8) =1

8+56=1

This is not true so it cannot be a solution

We do not need to check the second equation because it is not a solution to the first

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.

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