Question

Answer this question plzzzz...​

Answer 1

Answer:

let the ratio be x

first part - 7x

second part - 3x

second part is given=6.3cm

therefore, 3x =6.3

x= 6.3/3

x= 2.1cm

a. first part = 7*2.1 = 14.7cm

b. total length = 14.7+6.3= 21cm

Answer 2

let the length of the longer part be x cm.

x/6.3=7/3

x=7X6.3/3

x=7X2.1

x=14.7 cm

thus, th length of the longer part is 14.7 cm.

the total length of the original rod = 6.3+14.7

= 21 cm

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