The length of a rectangle is 3 more than twice its width. the perimeter is 48 feet

Step-by-step explanation:

width =x

length = 2x + 3

Perimeter = 48 feet

2*(length + width ) = 48

2*(2x + 3 + x) = 48

2*(3x + 3 ) = 48

3x +3 = 48/2

3x + 3 = 24

3x = 24-3

3x = 21

x = 21/3

x = 7

Width = x = 7 feet

length = 2x + 3 = 2*7 + 3 = 14+ 3 = 17 feet

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

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times