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Answer:
Step-by-step explanation:
Answer:
0.19g/mL
Step-by-step explanation:
The concentration of a solution is how much of a substance in in another substance, usually the amount of solute in a solvent.
The solute is the active ingredient powder. The solvent is the NS solution.
Divide the solute by the solvent.
75g ÷ 400mL
= 75g/400mL Simplify for solute per one unit, 1 mL. Divide top by bottom.
= 0.1875g/mL Round to the nearest hundredth, second decimal place.
≈ 0.19g/mL
Therefore the final concentration is 0.19g/mL.
Determine which of the four possible answer graphs features the lines
<span> s + l < 30 and
and
8s + 12l ≤ 160 This one could be reduced to s+1.5l</span>≤20
Note that the first equation has s-intercept 30 and l intercept 30.
Also, that the send equation has s-intercept 20 and l intercept 13 1/3.
Knowing these intercepts will help you to recognize the properly graphed lines.
So, again, determine from this info which of the four possible answer graphs correctly illustrates the lines mentioned immediately above.