megamorph
06.09.2021 •
Mathematics
Suppose that a nurse needs 10 cc (cubic centimeters) of a 15.5% solution (that is, a solution that is 15.5% ingredient) of a certain medication, which must be obtained by mixing x cc of a 22% solution and y cc of a 3% solution. Write expressions involving x for the following. y, the amount of 3% solution
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Ответ:
We start by working out the steepness of the slope (gradient). We can pick any pairs of from the table
Let choose and as and respectively
gradient () =
To form the linear equation, we can use the formula