3. The length of a straight line ABC is 5 m.
If AB: BC = 2:5, find the length of AB.
pls show steps/working
Answers
Answered by
2
Answer:
abc= 5 m
ab:bc=2:5
let ab=2x
bc=5x
2x=5 ; 5x=5
x= 2.5 ; x=1
Answered by
1
10/7
Step-by-step explanation:
ABC= 5m
AB:BC= 2:5
Add AB + BC
2+5=7
Divide ABC over 7
5/7
AB= 5/7 x 2 = 10/7
BC= 5/7 x 5 = 25/7
AB= 10/7 or (Mixed fraction) 1 3/7
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