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Georgia [21]
2 years ago
11

Li Jun decides to model the rate at which the number of cavities a person has changes as the volume of acidic beverages the pers

on drinks increases.
What would be an appropriate unit for Li Jun's purpose?
Mathematics
1 answer:
Rasek [7]2 years ago
5 0

Answer:

cavities per liter

Step-by-step explanation:

Li Jun is measuring the number of cavities a person has as compared to the volume of acidic beverages the person drinks.  

An appropriate unit for the number of cavities is cavities.

An appropriate unit for the volume of drink is liter.

This makes an appropriate unit for the rate would be cavities/liter.

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Adam is building birdhouses that requires 1/2-ft-long boards. How many pieces that are exactly 1/2 ft long can be made from a bo
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Answer:

16

Step-by-step explanation:

Adam is building birdhouses that requires \frac{1}{2} i.e 0.5 feet long boards.

Now, he has an 8\dfrac{1}{4} i.e. 8.25 feet longboard and wants to cut each 0.5 feet longboards.

We have to calculate the number of pieces of exactly 0.5 feet length that can be made from this 8.25 feet longboard.

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4 0
3 years ago
Y=143.3(5)^2+1823.3(5)+6820
MA_775_DIABLO [31]

As the question is written, the <em>correct answer</em> is:


19519.


Explanation:


Our question states

y = 143.3(5)² + 1823.3(5) + 6820


To evaluate this, we use the order of operations (PEMDAS). There is nothing to be evaluated in parentheses, so P is taken care of.


The E part, exponents, is 5². This is 25, which gives us:

y = 143.3(25) + 1823.3(5) + 6820


Next we have M and D, multiplication and division (in the order they appear). Our multiplication is:

143.3(25) = 3582.5; and

1823.3(5) = 9116.5.


This gives us:

y = 3582.5 + 9116.5 + 6820


Lastly, we add these:

y = 12699 + 6820

y = 19519

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3 years ago
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