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2 years ago

If the given ordered pair equal then find value of x and y(3x+5)=(x+2)and (4y+7)= (y+3)

Mathematics

1 answer:

Yanka [14]2 years ago

7 0

Answer:

3x+5 =x+2

3x-x=2-5

2x= –3

x=-3/2

4y+7=y+3

4y–y =3-7

3y=–4

y= —4/3

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3 years ago

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3 years ago

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3 years ago

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Given : The old machine could shred a truckload of paper in 4 hours.

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Rate of work done by new machine = $\dfrac{1}{2}$

Let 't' be the time taken by both of them working together , then we have the following equation:-

$\dfrac{1}{t}=\dfrac{1}{4}+\dfrac{1}{2}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{1+2}{4}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{3}{4}\\\\\Rightarrow t=\dfrac{4}{3}=1\dfrac{1}{3}\ \text{ hours}$

Since 1 hour = 60 minutes

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Hence, it will take 1 hour 20 minutes to shred the same truckload of paper if Ron runs both shredders at the same time.

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3 years ago

If the given ordered pair equal then find value of x and y(3x+5)=(x+2)and (4y+7)= (y+3)​

If the given ordered pair equal then find value of x and y(3x+5)=(x+2)and (4y+7)= (y+3)