Last year, the temperature in Rochester, NY, dropped from -3 F to -21 F in only 6 hours. if temperature changed by a steady amo
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Answer:
<em>Gardener will need 4 more plants.</em>
Step-by-step explanation:
Gardener has 780 plants and wants to plant them in an array of n rows and n columns.
The number of plants needed to do that is:
He actually has 780 plants, thus it should occur:
Taking the square root:
n=27.9
Since n needs to be an integer, we round up n to get
n=28
But , 4 more than the actual number of plants, thus:
Gardener will need 4 more plants.
Note: There are other possible results for n. If we set n=29, then and Gardener would need 841-780=61 more plants, but the question asked for the minimum number of plants.
Answer:
Step-by-step explanation:
We are solving for in the equation:
First, isolate the variable term by subtracting from both sides of the equation:
Now, divide both sides of the equation by the coefficient of :
This solution for , as a decimal, would be non-terminating. If you divided
into
, you would get the non-terminating decimal of:
Therefore, our solution is:
-
We can check our solution by substituting for
in the initial equation:
Substitute:
Simplify :
Add:
Since both sides of the equation are equal, our solution is correct!