01-04-2020
Mathematics

contestada

ABC is a straight line.The length of AB is four times the length of BC.AC=75
Work out the length of AB

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jimrgrant1 jimrgrant1

01-04-2020

Answer:

AB = 60

Step-by-step explanation:

Given AC = 75 and AB = 4BC, then

AB + BC = AC, that is

4BC + BC = 75

5BC = 75 ( divide both sides by 5 )

BC = 15

Thus

AB = 4BC = 4 × 15 = 60

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