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allsm [11]
3 years ago
14

In the equation 5y=3x do x and y show dorect variation​

Mathematics
1 answer:
stealth61 [152]3 years ago
8 0

Answer:

Step-by-step explanation:

x= 5/ 3 y

y=3/5x

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Suppose you want to start saving for retirement. You decide to continuously invest $20000 of your income each year in a risk-fre
Korvikt [17]

Answer:

Following are the solution to the given points:

Step-by-step explanation:

p= amount at any time

then \frac{dp}{dt}=0.07 p

p=p_0 (1+e^{0.07 t) \\\\

P_0=\ principle \ amount \\\\  interest \ =p-p_0=p_0e^{0.07t}\\\\ p=y\frac{dy}{dt}=0.07y_0

at time = t\ years

\frac{dp}{dt}\\\\c_0=\$ \ 20000\ year\\\\p \to p+dp\\\\ dp=0.07p+c_0

y= amount at any times

\frac{dy}{dt}=0.07y+c_0\\\\dt= \frac{dy}{c_0+0.07y}

For point a:

\frac{dy}{dt}=20000+0.07 y

For point b:

\frac{dy}{20000+0.07 y}=dt\\\\\frac{1}{0.07}|n(\frac{0.07y+20000}{20000})=t\\\\\frac{0.07y}{20000}+1=e^{0.07t}\\\\y=7.1428\times 10^4[e^{0.07t} -1]\\\\y=\frac{20000}{0.07}[e^{0.07t}-1]\\\\

For point c:

y(30)=827391.75

4 0
3 years ago
1.13-lab: temperature of soil and water
Schach [20]

Radiation from the sun heats the Earth's surface by means of rays that are trapped in the atmosphere and allow the Earth to have constant heat.

<h3>How is the Earth's surface heated?</h3>

The surface of the Earth heats up due to the sun's rays that hit it and when they enter the atmosphere they are reflected on the surface being trapped between the atmosphere and the surface.

Another important aspect to keep in mind is that the rays strike at different angles throughout the Earth, for example:

  • In the equatorial zone they affect directly, so this zone tends to be more quality than others in which the rotation and translation of the Earth cause the rays to enter in less or more quantity throughout the year.

Learn more about solar rays in: brainly.com/question/919704

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DedPeter [7]

Answer:

D

Step-by-step explanation:

It's a repeating pattern

6 0
3 years ago
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jill bought 14 feet of fabric. the fabric cost $3.25 a foot, including tax. what is the total cost of the fabric?
zepelin [54]

Answer:

$45.5

Step-by-step explanation:

3.25 times 14 is 45.5

4 0
3 years ago
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Help!!!<br><br> Which graph has a slope of 2/3?
nalin [4]

Answer:

The third one

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Slope is rise/run

This graphs shows the line going up by 2 and to the right 3

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3 years ago
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