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Firdavs [7]
3 years ago
6

Darcy and Leah are looking at some fabric selections in a store. All of the selections are marked the same price, and the amount

, in yards, of each fabric is written as an improper fraction. Which amount is the greatest? A. 43⁄5 B. 33⁄4 C. 78⁄9 D. 22⁄3
Mathematics
2 answers:
alex41 [277]3 years ago
5 0

We know that the price of all the fabrics is the same. However, the length of the fabrics is different. We have to determine which fabric is the longest.

Option A: \frac{43}{5}  = 8.6

Option B: \frac{33}{4} = 8.25

Option C: \frac{78}{9} = 8.6667

Option D: \frac{22}{3} = 7.33....

Hence, the longest fabric is the one given in option C, and its length is 8.6667

Viefleur [7K]3 years ago
4 0

Lets convert all values in the decimal expanded form.

A. 43/5 = 8.6

B. 33/4 = 8.25

C. 78/9 = 8.666...

D. 22/3 = 7.333...

From above, 8.666... is the greatest among all.

Hence, the greatest amount is 78/9.


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vfiekz [6]

Answer:

Step-by-step explanation:

given a point (x_0,y_0) the equation of a line with slope m that passes through the  given point is

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y = mx+(y_0-mx_0).

Recall that a line of the form y=mx+b, the y intercept is b and the x intercept is \frac{-b}{m}.

So, in our case, the y intercept is (y_0-mx_0) and the x  intercept is \frac{mx_0-y_0}{m}.

In our case, we know that the line is tangent to the graph of 1/x. So consider a point over the graph (x_0,\frac{1}{x_0}). Which means that y_0=\frac{1}{x_0}

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\frac{1}{2}\frac{2}{x_0}\cdot 2x_0=2

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