2 years ago

I need help with this please

Mathematics

1 answer:

Harlamova29_29 [7]2 years ago

3 0

-12y+14-9y=14
-21y=0
y=0, x=7

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A coffee supply store waits until the orders for its special blend reach 100 pounds before making up a batch. Columbian coffee s

yan [13]

X - Columbian coffee ( in pounds),
y - Brazilian coffee ( in pounds );
x + y = 100
8.85 x + 3.85 y = 6.55 ( x + y )
----------------------------------------
x = 100 - y
8.85 ( 100 - y ) + 3.85 y = 6.55 * 100
855 - 8.55 y + 3.85 y = 655
- 5 y = - 230
y = ( - 230 ) : ( - 5 )
y = 46
x = 100 - 46
x = 54
Answer: 54 pounds of Columbian coffee and 46 pounds of Brazilian coffee should be used.

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