3 years ago

BC = 6x + 5 . AC = 98 and AB = 8x + 9 Find BC.

Mathematics

2 answers:

Lina20 [59]3 years ago

4 0

Answer: BC = 41

Step-by-step explanation:

AB + BC = AC

8x + 9 + 6x + 5 = 98

14x + 14 = 98

14x = 84

x = 6

BC = 6x + 5

Substitute 6 for x

BC = 6 (6) + 5

BC = 36 + 5 = 41

Hope it helps!

Xelga [282]3 years ago

3 0

Answer:

BC = 41 degrees

Step-by-step explanation:

You know that AB + BC = AC, so:

8x + 9 + 6x + 5 = 98

14x + 14 = 98

14x = 84

x = 6

BC = 6x + 5

substitute in x = 6:

BC = 6 * 6 + 5

= 36 + 5

= 41

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