Mr. Watson uses 10.5 gallons of gasoline to drive the first 313 miles of the trip. How many gallons of gasoline would he need to
1 answer:
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Answer:
Brand X has to mix 8.4 oz of brand A mixed nuts which contain 35% peanuts and 12.6 oz of brand B mixed nuts which contain 25%, to obtain 21 oz. Bags of mixed nuts that contain 29% peanuts.
Step-by-step explanation:
Hi
We define
, wich means Brand A has 1 oz containing 35% peanuts.
, wich means Brand b has 1 oz containing 25% peanuts.
So we can build an equiation system
(1)
(2), after fixing it a little
(2)
As we can use any method to solve the system, I used a calculator wich thrown the following results and
.