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lidiya [134]
3 years ago
7

The price p (in dollars) and the quantity x sold of a certain product obey the demand equation:

Mathematics
2 answers:
katen-ka-za [31]3 years ago
6 0
X = -20p + 500
20p = 500 - x
p = (500 - x)/20

R = xp = x(500 - x)/20 = (500x - x^2)/20
Nina [5.8K]3 years ago
4 0
X = - 20 p + 500
First we have to express p as a function of x:
20 p = - x + 500  / : 20
p = - x/20 + 25
The revenue:
R = x p
R = x ( - x/20 + 25 ) = - x²/20 + 25 x
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Answer:

x > 9/5

Step-by-step explanation:

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3 0
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Max’s grandmother is 83 years old. Which expression should he use to find his grandmother’s age in months? (12 months = 1 year)
NISA [10]

Answer:

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Step-by-step explanation:

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3 years ago
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Which Pairs are additive inverses?<br> a. 6,-(-6)<br> b. -7,7<br> c.-7,-7<br> d.7,7<br> e.6,-6
xz_007 [3.2K]

I was never sure of what the "additive inverse" is. 
So, just now, just for you, I went and looked it up.

The additive inverse of any number ' A ' is the number
that you need to ADD to A to get zero.  That's all !

So now, let's check out the choices:

a), 6, -(-6)

That second number, -(-6), is the same as +6 .
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Do you get zero when you add them up ?  No.

b). -7, 7
What do you get when you add -7 and 7 ?
You get zero.
So these ARE additive inverses.

c). -7, -7
What do you get when you add -7 to -7 ?
You get -14 .  That's not zero, so these
are NOT additive inverses.

d).  7, 7
What do you get when you add 7 to 7 ?
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e).  6, -6
What do you get when you add 6 to -6 ?
You get zero.
So these ARE additive inverses.

What do we end up with from the list of choices:

a).,  c).,  and d). are NOT additive inverses.

b). and e). ARE additive inverses.

7 0
3 years ago
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Which describes Myra's distance as time increases?
DaniilM [7]

Answer:

(A)increasing

Step-by-step explanation:

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\left|\begin{array}{c|c}Time(minutes)&Distance(miles)\\--&--\\0&0.0\\2&0.4\\4&0.8\\6&1.2\\8&1.6\end{array}\right|

We observe that as time increases, Myra's distance also increases. It is the speed(0.2 miles per minute) which is constant.

Therefore Option A is the correct option.

3 0
3 years ago
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