Question

A mine extracts 2 tons of ore in an hour. Of the total ore extracted in a day, 4 tons is purchased by the government and more than 10 tons is sold to a mineral extractor. If the mine operates for x hours in a day, what is the simplest inequality that represents the number of hours the mine must operate to meet its obligations?
a.x > 3
b.x > 4
c.x > 5
d.x > 7

Answer 1

How many tons of ore, in total, are purchased or sold?

Answer 2

2 @agent0smith

Answer 3

No. That's how much is extracted per hour. Read the question again, look for keywords 'purchased' and 'sold'.

Answer 4

4

Answer 5

and 10

Answer 6

So it's a total of how much...

Answer 7

40?

Answer 8

4
IDK

Answer 9

If 4 tons are purchased, and another 10 tons are sold...

if you have 4 apples and someone gives you another 10 apples, how many do you have?

Answer 10

14

Answer 11

So... How many tons of ore, in total, are purchased or sold?

Answer 12

14

Answer 13

And how much does the mine extract per hour?