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riadik2000 [5.3K]
3 years ago
10

If Kathy walks 3 miles in 80 minutes how far will she in 120 minutes

Mathematics
1 answer:
zepelin [54]3 years ago
8 0

Answer:

4.5 miles

Step-by-step explanation:

We can use a ratio to solve

3 miles                 x miles

---------------  = ----------------

80 minutes         120 minutes

Using cross products

3 * 120 = 80x

Divide each side by 80

360/80 = 80x/80

4.5 =x

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The trick to solving this problem is to know and remember that the sum of all the interior angles of a triangle is always 180 degrees.

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20x = -40, so x = -2 (answer)
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3 years ago
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Trava [24]

Answer:

8

Step-by-step explanation:

I believe that the answer is 8

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2 years ago
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fgiga [73]

Answer:

y = 3x + 3

Step-by-step explanation:

First, you check for the y-intercept, which is 3 for this equation.

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2 years ago
Read 2 more answers
Point m is the midpoint of kL. M(1,-1) and L(8,-7. What are the coordinates of point k?
Phoenix [80]

Answer: (-6, 5)

<u>Step-by-step explanation:</u>

Use the Midpoint Formula: \dfrac{(x_k, y_k)+(x_L,y_L)}{2}=(x_m, y_m)

Separate the x's and y's and solve them individually:

\dfrac{x_k+x_L}{2}=x_m\qquad \qquad \qquad \qquad\dfrac{y_k+y_L}{2}=y_m\\\\\\\dfrac{x_k+8}{2}=1\qquad \qquad \qquad \qquad \qquad \dfrac{y_k-7}{2}=-1\\\\\\x_k+8=2\qquad \qquad \qquad \qquad \qquad y_k-7=-2\\\\\\x_k\quad =-6 \qquad \qquad \qquad \qquad \qquad y_k\qquad =5

            So, the k-coordinate is (-6, 5)

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3 years ago
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iren2701 [21]

Answer:

C. one solution

Step-by-step explanation:

The number of solutions can be found from the number of intersection points.

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C. one solution is the correct answer.

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3 years ago
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