Question

beans cost 600$ for 1 killogram if i buy 9 grams of beans and my friend buys 70 grams of beans how much more did my friend pay

Answer 1

Answer: 36,600

Step-by-step explanation:

600×9 = 5400

600×70=42000

42,000-5,400=36,600

Answer 2

Answer:

1kg = 1000g

600$ for 1kg → 0,6$ for 1g

You pay: 9 * 0,6 = 5,4$

Your friend pays: 70 * 0,6 = 42$

Will pay more: 42$ - 5,4$ = 36,6$