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allochka39001 [22]
2 years ago
7

5a+4b=65 elimination substitute and check

Mathematics
1 answer:
SIZIF [17.4K]2 years ago
4 0

Answer:

a=13 - 4b/5

b=65/4-5a/4

Step-by-step explanation:

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Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.  

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