Question

the electrician has 7 m 23 cm electric wire he used 551cm for one wiring project how many centimeters of wire does he have left

Answer 1

we are given

total length of wire is 7m and 23cm

we know that

`1m=100cm`

so, total length of wire is

`=(7*100+23)cm`

`=723cm`

now, we have

he used 551cm for one wiring project

so, remaining wire = total length of wire - wire used

so, we can plug values

and we get

remaining wire = 723 - 551 cm

remaining wire =172cm......................Answer