3 years ago

It took the carriage 2.5 hours to travel 20 miles. H ow long will it take for the carriage to travel in 12 miles

1 answer:

6 0

$\bf \begin{array}{ccll}
hours&miles\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
2.5&20\\
h&12
\end{array}\implies \cfrac{2.5}{h}=\cfrac{20}{12}\implies \cfrac{2.5\cdot 12}{20}=h$

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Backwards of y=5x-10

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I think you mean the inverse
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Which statement about x2 + 10x = 11 is true?

Agata [3.3K]

Equations are statements that have equal values, when compared

The true statement about $x^2 + 10x = 11$ are x = 1 and x = -11

<h3>How to determine the true statement</h3>

The equation is given as:

$x^2 + 10x = 11$

Rewrite as:

$x^2 + 10x - 11 = 0$

Expand

$x^2 + 11x - x - 11 = 0$

Factorize

$x(x + 11) -1( x + 11) = 0$

Factor out x + 11

$(x -1)(x + 11) = 0$

Solve for x

x = 1 or x = -11

Hence, the true statement about $x^2 + 10x = 11$ are x = 1 and x = -11

Read more about equations at:

brainly.com/question/1214333

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