A rectangle that is twice as long as it is wide forms the base of a rectangular pyramid that is 60cm high. If the volume of the pyramid is 4000 cm cubed, what are the dimensions of the rectangle?

Full show working out ty;)

10 * 20 cm.

Step-by-step explanation:

Let the width of the base = x, then it's length is 2x cm  and the area = 2x^2 cm^2.

Volume = 1/3 * height * area of the base

4000 = 1/3 * 60 * 2x^2

2x^2 = 4000 / (1/3 * 60)

2x^2 = 4000 / 20 = 200

x^2 = 200/2 = 100 cm.

x = 10 cm.

So the dimension of the rectangle =  10 * 20 cm.

depending on others is critical to survival. my source is apex!

step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles