chy71
16.08.2019 •
Mathematics
Will give brainlist do i do 10-x=2?
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Ответ:
x = 4
Step-by-step explanation:
DE is parallel to AC and intersects the other 2 sides. It divides those sides proportionally, that is
= , thus
= ( cross- multiply )
2(10 - x) = 3x ← distribute left side
20 - 2x = 3x ( subtract 3x from both sides )
20 - 5x = 0 ( subtract 20 from both sides )
- 5x = - 20 ( divide both sides by - 5 )
x = 4
Ответ:
C. Both parents Explanation: I am not going to explain in full detail but basically the offspring needs something from the mom and the dad to live