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3 years ago

Px + qy = r 2px - qy = 2r When solving this system of equations, x =

Mathematics

2 answers:

VladimirAG [237]3 years ago

8 0

Px + qy = r
2px - qy = 2r
----------------add
3px = 3r

x = 3r/3p
x = r/p

expeople1 [14]3 years ago

8 0

You just add the equations:
px + qy = r
2px - qy = 2r
3px = 3r
divide by 3
px = r
divide by p
x = (r)/(p)

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Answer-

The maximum number of watches that Samantha come by with her savings is 10.

Solution-

The amount of money Samantha has in her savings account = $1150

She wants to buy shirts and watches.

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Then,

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As the number of watches can not be in fraction, so at most she can buy 10 watches.

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3 years ago

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tankabanditka [31]

Answer:

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