Answered

A mechanic repaired 28 cars and 46 trucks last month. He spent 2 hours repairing each of these vehicles. Which equation can be used to find h, the total number of hours the mechanic spent repairing these vehicles?

Sagot :

Deshnylrhedlysviz
h=C2+T2

where C=number of cars
          T=number of trucks

so...(28.2)+(46.2)
       56+92=148

or simply
h=(C+T)2
   (28+46)2
   ( 74)2
   =148