Lin runs 5 laps around a track in 4 mins How many mins per lap is that + If Lin runs 21 laps at the same rate how long will it take

1. 48 seconds or 0.8 minutes per lap.

2. 1,008 seconds or 16.8 minutes to run 21 laps.

Step-by-step explanation:

1. Turn 4 minutes into seconds which is 240 then divide it by 5 and you'll get 48 seconds per lap. 48/60 to turn it into minutes = 0.8 minutes

2. use 48 seconds and times it by 21 which gets you 1,008 seconds, then divide that by 60 which gets you 16.8 minutes to run 21 laps.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

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a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5