Hailey drew this diagram to represent the equation `2x+16=50`, but she made a mistake. What equation does Hailey’s tape diagram represent?

x+18=50

Step-by-step explanation:

2+16+x=50 and simplify

Hailey's diagram represents 2 + x + 16 = 50.

When there are individual boxes as such, it typically means that you will combining, or adding them all together.

For it to be correct, 2x should be together as stated in the given equation:

     50

[   2x   ][16]

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