The sum of four times a number and eight is between zero and twelve. Find the range of numbers.
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Answer:
Let x represents the ounces of first spice.
From the given statements, you draw a table as shown below:
ounces of spice Percentage ounces of salt
First spice x 3% 0.03x
Second spice 175 6% 175(0.06)
Final mixture x+ 175 5% (x+175)(0.05)
Now, to solve for x;
Final spice = First spice + second spice
Subtract 10.5 on both sides we have;
Simplify:
Subtract 0.05x on both sides;
Simplify:
Divide both sides by -0.02, we get;
x = 87.5 ounces
Therefore, 87.5 ounces of spices i.e 3% salt should be added to 175 ounces of a spice that is 6% salt in order to make a spice that is 5% salt