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3 years ago

What is the value(s) of x?

Mathematics

1 answer:

irinina [24]3 years ago

7 0

This much, I understand from that $\bf \begin{cases}
y_1=11x-3\\
y_2=4x+19\\
-----------\\
\textit{now, whatever }y_1\ is\ y_2\ \textit{is 6 more than that}\\
y_2=y_1+6\\
4x+19=(11x-3)+6\impliedby \textit{solve for "x"}
\end{cases}$

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3 years ago

The 1992 world speed record for a bicycle (human-powered vehicle) was set by Chris Huber. His time through the measured 200 m st

Reil [10]

Answer:

a) 30.726m/s and b) 5.5549s

Step-by-step explanation:

a.) What was Chris Huber’s speed in meters per second(m/s)?

Given the distance and time, the formula to obtain the speed is

$v=\frac{d}{t}$ .

Applying this to our problem we have that

$v=\frac{200m}{6.509s}= 30.726m/s$ .

So, Chris Huber’s speed in meters per second(m/s) was 30.726m/s.

b) What was Whittingham’s time through the 200 m?

In a) we stated that $v=\frac{d}{t}$ . This formula implies that

$t=\frac{d}{v}$ .

First, observer that $19\frac{km}{h} =19,000\frac{m}{h}=\frac{19,000}{3,600}m/s= 5.2777m/s$ .

Then, Sam Whittingham speed was equal to Chris Huber’s speed plus 5.2777 m/s. So, $v=30.726\frac{m}{s} +5.2777\frac{m}{s}= 36.003 m/s.$

Then, applying 1) we have that

$t=\frac{200m}{36.003m/s}=5.5549s.$

So, Sam Whittingham’s time through the 200 m was 5.5549s.

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4 years ago

Jennie is training for a race. On Tuesday She finished her sprint 0.305 second faster than on Monday. be How can you explain the

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Have Monday equal to the variable X
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3 years ago

Read 2 more answers

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Nesterboy [21]

Answer in the attachment.

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