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DanielleElmas [232]
2 years ago
12

Find the total surface area of this square based pyramid. 10ft 10 ft [? ]ft?

Mathematics
1 answer:
faltersainse [42]2 years ago
3 0

Answer:

300 ft^{2}

Step-by-step explanation:

area of triangle= \frac{b*h}{2}

\frac{10*10}{2} = 50

4 sides of the triangle

4*50=200

area of square= l*w

10*10=100

area of square+area of triangles

200+100=300

_ft^{2}=300ft^{2}

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To reduce 16 ounces of a 25% solution of antiseptic to a 10% solution, how much distilled water should a nurse add?
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Answer:

24 ounces

Step-by-step explanation:

Here's a more intuitive approach to use here.

You know that your initial solution has a percent concentration, presumably volume by volume, of  

25

%

. This means that any volume of this solution contains  

1

part solute and  

3

parts solvent.

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10

%

, which means that any volume of this solution will contain  

1

part of solute and  

9

parts solvent.

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ounces, or  

4

parts, each with a volume of  

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1 part  

=

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6

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⋅

4 ounces

1

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=

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