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sesenic [268]
3 years ago
11

Lindsay drove for 5 1 /2 hours at 60 miles per hour. How much distance did she travel?

Mathematics
1 answer:
GaryK [48]3 years ago
5 0

let's firstly convert the mixed fraction to improper, and then check.


\bf \stackrel{mixed}{5\frac{1}{2}}\implies \cfrac{5\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{11}{2}}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\begin{array}{ccll}
miles&hours\\
\cline{1-2}
60&1\\[0.8em]
m&\frac{11}{2}
\end{array}\implies \cfrac{60}{m}=\cfrac{~~1~~}{\frac{11}{2}}\implies \cfrac{60}{m}=\cfrac{~~\frac{1}{1}~~}{\frac{11}{2}}\implies \cfrac{60}{m}=\cfrac{1}{1}\cdot \cfrac{2}{11}
\\\\\\
\cfrac{60}{m}=\cfrac{2}{11}\implies 660=2m\implies \cfrac{660}{2}=m\implies 330=m

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4 0
3 years ago
A bridge connecting two cities separated by a lake has a length of 5927.261 yd. use the table of facts to find the length of the
alex41 [277]

Answer:

the length of the bridge in miles is 3.37 miles

Step-by-step explanation:

The computation of the length of the bridge in miles is shown below:

Given that

The length is 5927.261 yard

As we know that

1760 yard = 1 mile

So 1 yard = 1 ÷ 1760 mile

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= 5927.261 ÷ 1760

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5 0
3 years ago
<img src="https://tex.z-dn.net/?f=solve%20for%20%22m%22%20t%3D%5Cfrac%7Bms%7D%7Bm%2Bn%7D" id="TexFormula1" title="solve for &quo
dalvyx [7]

Answer:

\boxed{\sf \ \ \ m = -\dfrac{tn}{t-s} \ \ \ }

Step-by-step explanation:

Hello,

let s assume that m+n is different from 0

we have this equation and we need to find m as a function of t, s, and n

t=\dfrac{ms}{m+n}

<=>

(m+n)*t=ms\\\\ tm+tn=sm\\ (t-s)m = -tn\\ m = -\dfrac{tn}{t-s}

for t-s different from 0, so t different from s

hope this helps

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3 years ago
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Answer: C
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3 years ago
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