lamar167 lamar167

26-11-2020
Mathematics

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Rice costs $x per kilogram.
Potatoes cost $(x + 1) per kilogram.
The total cost of 12 kg of rice and 7 kg of potatoes is $31.70.
Find the cost of 1 kg of rice.

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Аноним Аноним

26-11-2020

Answer:

$1.3

Step-by-step explanation:

12x+7x+7=31.7

x=1.3

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