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kicyunya [14]
3 years ago
7

The formula = () − applies to the demand of a product, where q is the number of units and P is the price of one unit. How many u

nits will be demanded if the price is Rs. 18.00?
Mathematics
1 answer:
UNO [17]3 years ago
3 0

Answer:

4320 units quantities were demanded

Step-by-step explanation:

Given:

p = 90 (5) - \frac{q}{10}

Required:

The units demanded when price = 18.00

This implies that:

p = 18.00

So, we have:

p = 90 (5) - \frac{q}{10}

18.00 = 90(5) - \frac{q}{10}

Open bracket

18.00 = 450 - \frac{q}{10}

Collect like terms

\frac{q}{10} = 450 - 18.00

\frac{q}{10} = 432

Solve for q

q = 432 *10

q = 4320

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X+y=120 <br>5.25x+3.0y=517.2
Sauron [17]
I will try to solve your system of equations.<span><span><span>
x+y</span>=120</span>;<span><span><span>5.25x</span>+<span>3y</span></span>=517.2</span></span>
Step: Solve<span><span>x+y</span>=120</span>for x:<span><span><span>
x+y</span>+<span>−y</span></span>=<span>120+<span>−y</span></span></span>(Add -y to both sides)<span>x=<span><span>−y</span>+120</span></span>
Step: Substitute<span><span>−y</span>+120</span>forxin<span><span><span><span>5.25x</span>+<span>3y</span></span>=517.2</span>:</span><span><span><span>
5.25x</span>+<span>3y</span></span>=517.2</span><span><span><span>5.25<span>(<span><span>−y</span>+120</span>)</span></span>+<span>3y</span></span>=517.2</span><span><span><span>−<span>2.25y</span></span>+630</span>=517.2</span>(Simplify both sides of the equation)<span><span><span><span>−<span>2.25y</span></span>+630</span>+<span>−630</span></span>=<span>517.2+<span>−630</span></span></span>(Add -630 to both sides)<span><span>−<span>2.25y</span></span>=<span>−112.8</span></span><span><span><span>−<span>2.25y</span></span><span>−2.25</span></span>=<span><span>−112.8</span><span>−2.25</span></span></span>(Divide both sides by -2.25)<span>y=50.133333</span>
Step: Substitute50.133333foryin<span><span>x=<span><span>−y</span>+120</span></span>:</span><span>
x=<span><span>−y</span>+120</span></span><span>x=<span><span>−50.133333</span>+120</span></span><span>x=69.866667</span>(Simplify both sides of the equation)
Answer:<span><span>
x=<span><span>69.866667<span> and </span></span>y</span></span>=<span>50.133333</span></span>
4 0
3 years ago
What is the slope of the line that passes through (-2,-2) and (3,-1)?
JulsSmile [24]

Answer:

+1/5

Step-by-step explanation:

3 0
3 years ago
Parabolas in geometry. i need help please
natali 33 [55]

Answer:

OPtion B

Step by step explanation:

Lets plug in a random value for x.

Lets say 5 is x

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0 = (y+1)^2

Square root of both sides

0 = y+1

subtract one from both sides

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that means the x is 5 and the y is -1. Option B illustrates exactly that!

7 0
3 years ago
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$260

I don’t know what model/formula you are supposed to be using.

But what I did first was calculated what 30% of 2700$ is.
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So it depreciates $810 per year.

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In three years, the laptop will be worth $260
6 0
3 years ago
4.06 Question 4
sleet_krkn [62]

Answer:

we have that

y < −3x + 3

y < x + 2

using a graph tool

see the attached figure

the answer is

the answer isThe point (1, −5) lie in the solution set

8 0
3 years ago
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