PLEASE I NEED HELP ASAP sally drives for 2 hours at an average speed of 70 m/h. she then drives for half an hour at an average speed of 40 m/h work ot the total distance that sally has travelled

Total Distance = 160 m

Average speed = 64 m/hr

Step-by-step explanation:

For first 2 hours:

Distance = Speed × Time

D = 70 × 2

D = 140 m

For the next half hour:

Distance = Speed × Time

Distance = 40 × 0.5

Distance = 20 m

Now total Distance:

Total Distance = 140+20

Total Distance = 160 m

After that,

Average Speed = Total Distance Covered/ Total Time taken

Average Speed = 160 m / 2.5 hours

Average speed = 64 m/hr

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363

where is the picture

step-by-step explanation: