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2 years ago

17=s+7 pls help i need thissssssssssssss

Mathematics

1 answer:

dimaraw [331]2 years ago

5 0

Answer:

17=s+7

-7 -7

-----------

10 0

s=10

Step-by-step explanation:

-Subtract 7 from both sides

-Remove the 0 and the addition sign

-You are now left with the equation s = 10

-Once you check to make sure 10 + 7 = 17 you have your answer

Hope this helps :))

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First we have to develop the information that gives us as 2 equations

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3 years ago

ank A contains 80 gallons of water in which 20 pounds of salt has been dissolved. Tank B contains30 gallons of water in which 5

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Answer:

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Step-by-step explanation:

We are given that

Tank A contains water=80 gallons

x(0)=20,y(0)=5

Tank B contains water=30 gallons

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Solution pumped from tank A to tank B at the rate=6 gallons/min

Solution pumped from tank B to tank A at the rate=2gallon/min

Solution from tank B is pumped out of the system at the rate=4 gallon/min

We have to find the DE at time t

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Rate in= $0.5\times 4+y(t)/30\times 2$

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Rate out=3x/40[/tex]

$\frac{dx}{dt}=$ Rate in-Rate out

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For y

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Rate in=3/40x

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