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charle [14.2K]
3 years ago
13

Martha walked 2 miles in 28 minutes at this rate how far can she walk in 70 minutes

Mathematics
1 answer:
kaheart [24]3 years ago
7 0

She can walk 5 miles in 70 minutes.

Step-by-step explanation:

Given,

As Martha walked 2 miles in 28 minutes, therefore,

2 miles = 28 minutes

1 minute = \frac{2}{28}

1 minute = \frac{1}{14}

In 70 minutes = Total time * distance per minute

Distance = 70*\frac{1}{14}\\Distance=\frac{70}{14}\\Distance=5\ miles

She can walk 5 miles in 70 minutes.

Keywords: Distance, Speed

Learn more about distance at:

  • brainly.com/question/10666510
  • brainly.com/question/10699220

#LearnwithBrainly

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Your school district cancels school when more than 2.5 inches of snow accumulate on the ground each hour. Snow is currently accu
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Answer:

It’s a or b

Step-by-step explanation:

8 0
2 years ago
Suppose T is a transformation from ℝ2 to ℝ2. Find the matrix A that induces T if T is reflection over the line y=1/2x
trapecia [35]

Answer:

A = \left[\begin{array}{cc}1&\frac{4}{5}\\\frac{4}{3}&-\frac{3}{5}\end{array}\right]

Step-by-step explanation:

We have to see how the canonical vectors are transformed throught T. Lets first define T in any basis.

Since T is a reflection, then any element of the line y = x/2 if fixed by T. Therefore T(2,1) = (2,1).

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By summing the first vector with the double of the second one we get, using linearity

T(0,5) = T( (2,1) + 2(-1,2)) = T(2,1) + 2T(-1,2) = (2,1) + 2(1,-2) = (4,-3)

Hence, T(0,1) = (4/5,-3/5)

Now, we take the second vector and substract it the double of the first one (to kill the second variable)

T(-3,0) = T( (-1,2) - 2*(2,1) ) = T(-1,2) -2T(2,1) = (1,-2)-2(2,1) = (-3,-4)

Therefore, T(1,0) = (1,4/3)

The matrix A induced by  T has in its first column T(1,0) and in its second column T(0,1). We conclude that

A = \left[\begin{array}{cc}1&\frac{4}{5}\\\frac{4}{3}&-\frac{3}{5}\end{array}\right]

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3 years ago
Please help!!!!!!!!!!
juin [17]
A: -3.25 or -13/4,b:-13/4?????
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3 years ago
Find the slope of the line containing the pair of points. ​(​7,​4) and ​(6​,-9​)
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Step-by-step explanation:

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m = ( y2-y1)/(x2-x1)

   = ( -9-4)/(6-7)

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3 0
2 years ago
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