5 - Aaron and Bobby are brothers.
They go to the same school.
Aaron leaves home at 8:00 am and walks to school.
Bobby leaves home at 8:15 am and cycles to school.
Bobby arrives at 8:30 am.
The graph shows their journeys.
Distance (km)
4
3
3 2
2
1
Aaron
Bobby
0
8:00 am 8:10 am 8:20 am 8:30 am 8:40 am
Time
(a) At what time did Aaron arrive at school?

grab rope, tie a loop-de-loop, put it around ur neck, now jump while its tied to a high place. now your shoes are cool.

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.