Hello, hope this makes some sense, the midpoint formula is what’s given in the picture and the rest is just substitution
7. How much 6% solution can you make by diluting 350 mL of a 15% solution
1 answer:
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Answer:
Cost of 45 screwdrivers will be = $900
Step-by-step explanation:
Last year 15 electric screwdrivers cost to the local hardware store = $300
So per screwdriver cost =
=
= $20
Now we have to calculate the cost of 45 screw drivers.
Since cost of 1 screwdriver = $20
So cost of 45 screwdrivers = 20×45 = $900