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3 years ago

Buying three tires at $80 each and getting a fourth tire free

Mathematics

1 answer:

kykrilka [37]3 years ago

4 0

Answer

3 x 80=240

240 / 4=$60 effective unit rate for each tire.

Step-by-step explanation:

mark me as brainliest!

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the area of a rectangle is 30 to the square root of 3750 square inches, and the length is 3 to the square root of 250 inches. wh

uranmaximum [27]

<h3>Answer:</h3>

$\sf { width =10 \sqrt{15} \:inches}$

<h3>Solution:</h3>

We are given that:

Area of rectangle is 30√3570
Length of the rectangle is 3√250

Area of rectangle is given by:

$\implies\quad{\pmb{ \sf{Area = length\times width}} }$

Hence, putting the values in the formula:

$\implies\quad \sf{ A = l\times w}$

$\implies\quad \sf{ 30\sqrt{3750}=3\sqrt{250}\times w}$

$\implies\quad \sf{3\sqrt{250}\times w = 30\sqrt{3750} }$

$\implies\quad \sf{ w =\dfrac{30\sqrt{3750}}{3\sqrt{250}}}$

$\implies\quad \sf{ w =10\dfrac{\sqrt{3750}}{\sqrt{250}}}$

$\implies\quad \sf{ w = 10\times\sqrt{\dfrac{3750}{250}}}$

$\implies\quad \underline{\underline{\pmb{\sf{ w =10\sqrt{15}}}}}$

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3 years ago

A dog walking along some train tracks meets a train every 4 minutes and the train catches up the dog every 12 minutes. Find the

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Answer and Step-by-step explanation:

Dog meets the train in = 4 minutes

Train catches up the dog in = 12 minutes

Let x be the time when train leave the route,

Train catch up the dog in 12 minutes, the endpoint of route is x and the dog meet up the train in 4min, so the equation becomes:

12 - x = 4

To find out the value of x, subtract 12 from both sides, we get

x = 4 – 12

-x = -8

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