2 years ago

What is the gradient of the graph shown ? Give your answer in its simplest form

Mathematics

1 answer:

Sedbober [7]2 years ago

3 0

Answer:

-2

Step-by-step explanation:

choose any point on the graph

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If a car travels at a speed of 25 mi/h for t hours, then travels 45 mi/h for m hours. What does the expression 25t + 45m represe

dlinn [17]

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Solve the equation: <img src="https://tex.z-dn.net/?f=%5Cfrac%7B21%20-%204x%7D%7B9%7D" id="TexFormula1" title="\frac{21 - 4x

schepotkina [342]

Answer:

$x = -\frac{12}{5}$

Step-by-step explanation:

To solve the equation, isolate x. Whatever you do to isolate x one on side, you must do to the other.

1) Multiply both sides by 9 to get rid of the fractions.

$\frac{21-4x}{9} +\frac{8x+15}{3} = 2 \\21-4x + 3(8x + 15) =18 \\$

2) Distribute the 3 to 8x and 15. Then, combine like terms.

$21-4x + 24x + 45 = 18 \\66 + 20x = 18$

3) Move the 66 to the other side, subtracting 18 by 66, then divide each side by 20 to finally isolate x.

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Thus, $x = -\frac{12}{5}$ .

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Aleksandr-060686 [28]

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Step-by-step explanation:

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Step-by-step explanation:

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