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goldenfox [79]
3 years ago
10

As a result of a transfer from one school to another, a boy has to walk one

Mathematics
1 answer:
Softa [21]3 years ago
6 0

Answer:

Let the distance of school and house is x k m

Then time taken at speed 2.5 km\hr=

2.5

x

hr

And time taken at speed 4 km\hr=

4

x

hr

∴

2.5

x

−

4

x

=

60

12

⇒

10

4x−2.5x

=

5

1

⇒x=3 km

Then the distance of school and house is 3 k m

may this help you

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q = 0, r = 2, s = 3, t = -3

Step-by-step explanation:

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1. a line with a slope of 1/3 passes through the point (3, 6) . which point also lies on this line?
valentina_108 [34]

1) Substituting into point-slope form, the equation of the line is y-6=⅓(x-3), which rearranges to:

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So, we can now substitute in the coordinates of each of the options to see which point lies on the line.

  1. 3 = ⅓(6) + 5 -> 3 = 7, which is false.
  2. 6 = ⅓(7) + 5 -> 6 = 22/3, which is false.
  3. -3 = ⅓(-3) + 5 -> -3 = 4, which is false.
  4. 3 = ⅓(-6) + 5 -> 3 = 3, which is true.

So, the answer is (4) (-6, 3)

2) Substituting into point-slope form, the equation of the line is y - 5 = ¾(x-2), which rearranges to:

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So, we can now substitute in the coordinates of each of the options to see which point lies on the line.

  1. 8 = 0.75(6)+3.5 -> 8 = 8, which is true.
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  3. 1 = 0.75(-1) + 3.5 -> 1 = 2.75, which is false.
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Sue drove her car 253 miles in january, 277 miles in february, and 280 miles in march. if her average mileage for the four month
Ostrovityanka [42]
X= miles driven in April


(253 + 277 + 280 + x)/4= 284
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