The area of a trapezoid is 60 square feet its height is 6 feet and one base is 12 feet. find the number of feet in the other base

The other base is 8 feet.

Step-by-step explanation:

You need to recall the area of a trapezoid equation:

We need to work back, so we need to divide the area by 6:

60 ÷ 6 = = 10

Then we need to multiply this by two to find a + b value:

10 x 2 = a + b

20 = a + b

Beause we know the value of a, which is 12, we can factor this in:

20 = 12 + b

Move the +12 over to the other side, making it a negative:

20 - 12 = b

8 = b

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

idk man good luck man