help

[opal raft]

i feel like this question should be really easy but I cannot do it someone help

[errant fossil]

Have u found it out yet

[opal raft]

Nah

[errant fossil]

K

So

Shld I explain step by step or just send the image of working out

[opal raft]

Just explain

[errant fossil]

K

So

U were right

Distance = speed*time

[opal raft]

yeah

[errant fossil]

And in this case, cus it’s km/h, you’ve gotta make it DISTANCE = (SPEED/60)*TIME

[opal raft]

ohh ok

[errant fossil]

So, what u do is

For the first 5 mins

U see its gone up to 102 km

So u gotta do (5/60)*102

To find the distance

In this case

That’s 8.5 km

[opal raft]

Yeah

[errant fossil]

Then, for 5 mins to 45 mins, you’ve gotta do 45-5 = 40

Cus that’s the specific time we need

And do (40/60)*102

This case, its 68km

Then, for 45 to 60 minutes, u see its dropped to 96km/h

So u do 60-45

= 15

[opal raft]

yeah

[errant fossil]

(15/60)*96

Is 24

So you got all of it

Now

U add up all the km you’ve found so far

8.5 + 68 + 24

That’s 100.5

Yh it’s 100.5

130-100.5 = 29.5

That’s the answer

29.5 km

[opal raft]

ok thanks i get it now

it was just that /60 on the speed

[errant fossil]

Just in case u wanted the working out

[opal raft]

ok thanks