a small inflatable pool holds 10 gallons of water. a tiny leak causes the amount of water in the pool to change by -0.05 gallon
2 answers:
Answer:
200 hours.
Step-by-step explanation:
A small inflatable pool that holds the amount of water = 10 gallons
A tiny leak causes the change in water = -0.05 gallon
Since quantity is with negative notation that represents that quantity of the water is reducing.
Let it takes x hours to empty the pool.
Therefore, amount water leaked in x hours = 0.05x gallons
And this amount is equal to 10 gallons.
0.05x = 10
x =
= 200 hours
Therefore, in 200 hours pool will be emptied.
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Answer:
To completely fill the sandbox will cost $56
Step-by-step explanation:
First, we calculate volume of the rectangular-shaped sandbox:
We know that density of sand is 100 pounds per cubic foot. Then, to fill the sand box that has a volume of 8 cubic foot, we calculate by rule 3:
1cubic foot..............100 pounds
8 cubic foot.............x pounds
We will need 800 pounds of sand to fill the sandbox, then we can calculate by rule 3 the number of bags needed and next the total cost of them:
50 pounds.......1bag
800 pounds.....x bags
To calculate the cost:
1 bag ..................$3.50
16 bags.................$x
To completely fill the sandbox will cost $56
For this case we have the following function:
By definition, we have that the domain of a function is given by all the values for which the function is defined. The given function is not defined when the denominator is zero.
So:
Thus, the function is not defined at
The domain is given by all real numbers except 2.
Answer:
The domain is given by all real numbers except 2.