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SVETLANKA909090 [29]
3 years ago
8

If AB = 2x–8 and AC = x+9, What is the length of BC?

Mathematics
2 answers:
Virty [35]3 years ago
4 0

Answer:

17

Step-by-step explanation:

2x-8=x+9

x=17

scZoUnD [109]3 years ago
3 0

ANSWER

BC=17 units

EXPLANATION

The given triangle is an isosceles triangle.

We have

AC=AB

This implies that,

x + 9 = 2x - 8

Group similar terms and simplify to get:

2x - x = 9 + 8

x = 17

Side BC is x units. But x=17

Therefore BC is 17 units.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS  (left hand side) of both equations have the same unit (%); we have

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