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SOS! Can some please help me!

SOS! Can some please help me!-example-1

2 Answers

5 votes

Answer:

8.9 is your answer to the question

User Derz
by
7.8k points
12 votes

Answer:

8.9

Explanation:

1. DE:BC=AD:AB

2. AD=AB+BD, but according to the conditions AB=5, then

AD=5+BD.

3. after the substitution DE=16; BC=9; AB=5 and AD=5+BD into the formula:

16:9=(5+BD):5;


(16)/(9) =(BD+5)/(5);

BD=80/9 - 5≈3.9.

4. if AD=AB+BD, then AD=5+3,9=8,9

User Selwyn
by
7.6k points

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