The function j(x)= 34x represents the number of jumping jacks j(x) you can do in x minutes. How many jumping
1 answer:
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Answer:
(a). ; (b). <em>33 to 40 </em>
Step-by-step explanation:
Use "magic fraction"
<em>(a).</em> Distance covered by runner is 33 yards
Whole distance is 40 yards
The portion of the race that the runner has completed is
<em>(b).</em> The portion of the race that the runner has completed is <em>33 to 40</em>
Let be the number of liters of the 10% solution to be used, and
the number of liters of the 4% solution. The chemist wants to end up with a 4 liter solution, so
For each liter used in the mixture, a concentration of either 10% or 4% acid will be contributed, and the goal is to make a 4L solution whose concentration is 7%, which means
Solving for gives
, so 2L of both solutions is needed.
Answer:
Quadrants 3 and 4
Step-by-step explanation:
we have
using a graphing tool
The solution is the triangular shaded area between the three dashed lines
see the attached figure
The solution lies in Quadrants 3 and 4
