Answered

A wire 20 ft. is to be cut into 2 parts having the ratio of 3:7. Find the lengths of the parts.

Sagot :

Inkaviz
3:7=20
3N : 7N =20                             3(2) : 7(2) = 20
    10N  =20                                 6 :  14  = 20
       N  = 20/10
       N = 2

The lengths are 6 and 14
Cheahjimmyviz
since the total parts are  3+7 =10
then the length of the parts are

3/10*20 = 6ft     &    7/10*20= 14ft