How much of a spice that is 30% salt should be added to 175 ounces of a spice that is 65% salt in order to make a spice that is 50% salt?
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2
I suggest that you make a drawing showing a box weighing (unknown) x ounces of 30% salt mix
alongside another box weighing 175 ounces of 65% salt mix
and a third box, THE RESULTANT mix, which weighs 175 + x ounces and is 50% salt.
The "Total Salt" equation is
0.30x + 0.65(175) = 0.5 (x + 175). That is, the total salt in the resultant mix comes from the 30% of the salt in the first box and the 6% salt in the second box.
Solve for x, which gives you the # of ounces of the 30% salt mix to be added.
All of your mixture/solution type of word problems will benefit from this approach. VISUALIZE!
alongside another box weighing 175 ounces of 65% salt mix
and a third box, THE RESULTANT mix, which weighs 175 + x ounces and is 50% salt.
The "Total Salt" equation is
0.30x + 0.65(175) = 0.5 (x + 175). That is, the total salt in the resultant mix comes from the 30% of the salt in the first box and the 6% salt in the second box.
Solve for x, which gives you the # of ounces of the 30% salt mix to be added.
All of your mixture/solution type of word problems will benefit from this approach. VISUALIZE!
Answered by
0
Answer:
131.25 ounces
Explanation:
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