Joey fills 1/5 of a toffee box in 1/25 of a
minute. how much time will he take to fill a
toffee box?

12 seconds will be needed to fill the toffee box.

Step-by-step explanation:

Joey takes the time to fill of a box = of a minute.

of a minute = seconds

= 2.4 seconds

Now we will use unitary method to get the time to fill a toffee box.

∵ box is filled in the duration = 2.4 seconds

∴ A box can be filled in the time =

                                                     = 2.4×5

                                                     = 12 seconds

Therefore, 12 seconds will be needed to fill the toffee box.

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."