1.Colin walked a distance of 15 miles in 6 hours. Work out Colins average speed.
Give your answer in miles per hour.

2.Tim drives at an average speed of 80km per hour for 3 hours 45 minutes.
Work out how many kilometres Tim drives.

i will mark you the brainiest

1. 2.5 miles

2. 21.33 km

Step-by-step explanation:

15miles/6hours=2.5 miles

80km/3.75min=21.33km

Hope this helped!!!

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

£56

step-by-step explanation: