Mathematics: If i bike 15 miles in an hour how many did i travel in 15 minutes

If i bike 15 miles in an hour how many did i travel

Ответ:

liptontea4

18.03.2022

Mathematics

You would of biked 3.75 miles in 15 minutes

Step-by-step explanation:

First we have to divide 60 by 15 because 1 hour is 60 minutes.

60 ÷ 15 = 4

Next we divide the 15 miles by 4.

15 ÷ 4 = 3.75

So, the answer is 3.75 we can check.

3.75 * 4 = 15

15 ÷ 4 = 3.75

Hope this helps! :)

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Ответ:

AriqRidwan6838

28.07.2022

Mathematics

Option c

Step-by-step explanation:

A system of equations are given to us. And we need to solve them . The given system is

$\begin{cases} y = 2x - 3\dots 1 \\ y = x^2 - 3\dots 2 \end{cases}$

We numbered the equations here . Now put the value of equation 1 in equation 2 that is substituting y = 2x - 3 in eq. 2 .

$\implies y = x^2 - 3 \\\\\implies 2x - 3 = x^2 - 3 \\\\\implies x^2 - 2x = 0 \\\\\implies x(x-2) = 0 \\\\\implies\red{ x = 0 , 2 }$

We got two values of x as 0 & 2 . Alternatively substituting these values we have ,

$\implies y = 2 x - 3 \\\\\implies y = 2(0)-3 \qquad or \qquad y = 2(2)-3 \\\\\implies y = 0-3 \qquad or \qquad 4 - 3 \\\\\implies \red{ y = -3 , 1 }$

Thefore the required answer is ,

$\red{Option\:c} \begin{cases} (0,-3) \\ (2,1) \end{cases}$

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If i bike 15 miles in an hour how many did i travel in 15 minutes

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