Answer:
7.2 hours
Explanation:
Myra is cooking meat the double number line shows that he needs 12 hours too cook 5 kilograms of meat
12 hours to cook 5 kilograms of meet
we need to find the number of hours needs to cook 3 kilograms
Let x be the number of hours to cook 3 kilograms
Make a proportion


solve for x
cross multiply it


Divide both sides by 5
so x= 7.2 hours