Answer:
$3 from his pockets
Step-by-step explanation:
Great question, it is always good to ask away and get rid of any doubts that you may be having.
To begin solving this problem we need to first calculate how much money all the supplies will cost. We do this buy adding up the prices of each individual supply. Like so,
Now we can see that the total amount of the supplies is $13. Since his mom loaned him $10 we can subtract that from the total cost.
Finally, we can see that Juan would need to pay a total of $3 from his pockets to be able to buy all the ingredients.
The first pump empties half the pond in 3 hours, so in 1/6 that time (1/2 hour), it empties (1/6)·(1/2) = 1/12 of the pond.
The second pump empties the other 5/12 of the pond in that half hour, so has a pumping rate of (1/2 h)/(5/12 pond) = (6/5 h)/pond.
The second pump could do the entire job alone in 1 hour and 12 minutes.
The degree of this polynomial is 4!!!
