2 years ago

5х + 6y=50 X-6y= -26

Mathematics

1 answer:

kondaur [170]2 years ago

8 0

Answer:

x=4 and y=5

Step-by-step explanation:

Find x by adding the two equations so that the 6y and -6y will cancel out.

You're left with 6x=24 which you divide 6 on both sides to get x=4.

Then to find y you will plug 4 into either equation for x. I chose the second equation, so 4-6y=-26, get -6y alone by subtracting the 4 over to the other side. then -6y=-30, then divide both sides by -6 and you get y=5.

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Bill weighs 120 lbs and is gaining ten lbs each month. Phil weighs 150 lbs and is gaining four lbs each month. How many months w

vaieri [72.5K]

First, let's write two expressions, letting x= the number of months which have elapsed:

Bill: 120 + 10x
Phil: 150 + 4x

If we set them equal to each other, then solve for x, that will be the number of months where their weights equal each other:

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<u>6x</u> = <u>30</u> [divide both sides by 5]
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2 years ago

Read 2 more answers

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madam [21]

There's my answer
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2 years ago

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