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malfutka [58]
3 years ago
5

Could you please solve this?

Mathematics
1 answer:
marissa [1.9K]3 years ago
5 0

Answer:

x = 12

Step-by-step explanation:

The ray from the vertex to the base is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is

\frac{x}{9} = \frac{4}{3} ( cross- multiply )

3x = 36 ( divide both sides by 3 )

x = 12

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3 years ago
Read 2 more answers
How many liters of a 20% alcohol solution must be mixed with 60 liters of a 90% solution to get a 80% solution?
leva [86]

x = liters of 20% solution

Mixing the 20% solution with the 60 L of 90% solution gives a new mixture with volume (x + 60) L. Each L of the 20% solution contributes 0.2 L of alcohol and thus a total of 0.2x L of alcohol, while the 60 L of 90% solution contributes 54 L of alcohol.

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