Can someone me to answer this question. an electrician cuts the following lengths from a roll of 12 gauge wire with red insulation: 8, 15, 15, and 21 feet. how many feet of wire did she use?

Really ?

(8 feet) + (15 feet) + (15 feet) + (21 feet) =

(8 + 15 + 15 + 21) (feet) =  59 feet.

The answer is the same even if it's 30 gauge wire with orange insulation.  Or any other gauge, with any other color ... even bare wire !

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

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?