3 years ago

What is the length of BG and LB need help will mark Brainliest

Mathematics

1 answer:

svlad2 [7]3 years ago

3 0

we get x by setting up a proportion.

$\frac{12}{2x+2}$ = $\frac{21}{5x-1}$

then we cross multiply.

12(5x−1) = 21(2x+2)

60x − 12 = 42x + 42

18x − 12 = 42

18x = 54

plug in 3 for x for <u>LB</u>, which is <u>2x + 2.</u>

<u>LB </u>= 2(3) + 2 = 8

plug in 3 for x for <u>BG</u>, which is <u>5x - 1.</u>

<u>BG </u>= 5(3) - 1 = 14

<h2><u>Answers</u>:</h2><h2>LB = 8</h2><h2>BG = 14</h2>

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