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Overview 6 9 10 12 Question Progress Homework Progress 13/60 ABC is a straight line. A B С The length of AB is four times the length of BC. AC = 75 cm. Work out the length of AB.
asked
Mar 2, 2022
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Overview
6
9
10
12
Question Progress
Homework Progress
13/60
ABC is a straight line.
A
B
С
The length of AB is four times the length of BC.
AC = 75 cm.
Work out the length of AB.
Mathematics
high-school
VishalPethani
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VishalPethani
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AB = 60cm
BC = 15 cm
Call AB x and BC y
x = 4y
And
x + y = 75
Substitute the first value intro eh second equation & solve for a numerical value for y
4y + y = 75
5y = 75
y = 15
Then solve for a numerical value of x
x = 4y
x = 4(15) = 60
Rayan Elmakki
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Mar 8, 2022
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Rayan Elmakki
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