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mamaluj [8]
3 years ago
14

How do you use rounding or compatible numbers to estimate the sum of a number

Mathematics
1 answer:
jarptica [38.1K]3 years ago
7 0
Round the numbers, then add them
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A vegetable garden with an area of 200 square feet is to be fertilized. If the length of the garden is 1 foot less than three ti
charle [14.2K]
Ok so I like to go in steps with these questions- first draw a picture and identify your variables.

W=width
L= 3w-1

Now we know that length times width gets us area so we plug in our variables into the area equation.

200 = w(3w-1)

When you foil that equation you end up with a quadratic : 3w^2-w-200 = 0

Either factor that or use the quadratic formula to get
w= 8.33 and w= -8

Since you can't have a negative dimension you need to use 8.33 and plug it back into your length equation.

Final answer:

w= 8.33ft
l= 23.99ft

*Now I simplified the decimals a little bit so you end up with 199.8ft^2 for the area so just add a few decimals on here and there*
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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
Quadrilateral ABCD is rotated 270° clockwise about the origin. What is the orientation of the rotated figure, and what quadrant
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Answer:

the second quadrant

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What is the sign of the product (–7)(–2)(–5)(1)?
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The product would be negative. Since there are three negative integers, the product would be negative. Two negatives make a positive, but another negative makes the end result negative.
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