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3 years ago

A dogs weight increased by 50% in 3 years by the end of 3 years the dog weighed 45 how much did the dog weigh 3 years ago

Mathematics

1 answer:

jeyben [28]3 years ago

3 0

30 xx because 50% of 30 is 15 and 30+15 = 45 x hope this helps

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alex41 [277]

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Step-by-step explanation:

We have the inequality:

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We want to find the possible values for x.

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now we want to have all the terms with x in one side and the terms without x in the other side.

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We are asked to solve for the width "x" in the given problem. To visualize the problem, see attached drawing.
We have the area of the swimming pool such as:
Area SP = l x w
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Area SP = 160 feet2
Area of the swimming pool plus the sidewalk with uniform width:
Area SP + SW = (10 + x) * (16 + x)
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160 -160 + 155 = 26x + x2
155 = 26 x + x2
x2 + 26x -155= 0
Solving for x, we need to use quadratic formula and the answer is 5 feet.

The value of x is <span>5 feet. </span>

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3 years ago