Ask Question
14 September, 14:21

ABC is a straight line.

+

H

B

C

The length AB is five times the length BC.

AC = 90 cm.

Work out the length AB.

AB = cm

+4
Answers (1)
  1. 14 September, 14:24
    0
    AB = 75 cm

    Step-by-step explanation:

    Since ABC is a straight line, then

    AB + BC = AC

    let BC be x then AB = 5x and summing gives

    5x + x = 90

    6x = 90 (divide both sides by 6)

    x = 15

    Thus

    AB = 5x = 5 * 15 = 75 cm
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “ABC is a straight line. + H B C The length AB is five times the length BC. AC = 90 cm. Work out the length AB. AB = cm ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers