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avanturin [10]
3 years ago
5

Explain how you can find the missing number and 3 4/5 divided by something equals 2 5/7 then find the missing number

Mathematics
1 answer:
enyata [817]3 years ago
5 0

let's firstly, convert the mixed fractions to improper, and then do equation.


\bf \stackrel{mixed}{3\frac{4}{5}}\implies \cfrac{3\cdot 5+4}{5}\implies \stackrel{improper}{\cfrac{19}{5}}
~\hfill
\stackrel{mixed}{2\frac{5}{7}}\implies \cfrac{2\cdot 7+5}{7}\implies \stackrel{improper}{\cfrac{19}{7}}
\\\\[-0.35em]
\rule{34em}{0.25pt}


\bf \cfrac{~~\frac{19}{5}~~}{x}=\cfrac{19}{7}\implies \cfrac{~~\frac{19}{5}~~}{\frac{x}{1}}=\cfrac{19}{7}\implies \cfrac{19}{5}\cdot \cfrac{1}{x}=\cfrac{19}{7}\implies \cfrac{19}{5x}=\cfrac{19}{7}
\\\\\\
\stackrel{}{\cfrac{7}{5x}=\cfrac{19}{19}}\implies \cfrac{7}{5x}=1\implies 7=5x\implies \cfrac{7}{5}=x\implies 1\frac{2}{5}=x

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Answer:

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6 0
2 years ago
The mayor of a town receives 75% of the votes in a town election. If 680 people voted, how many votes did the mayor receive? 360
7nadin3 [17]
First you need to put everything as 1 unit. I'll convert both to fractions for now.
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Cross Multiply

2040/4

Simplify

510

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5 0
3 years ago
Solve the inequality:<br><br> <img src="https://tex.z-dn.net/?f=4x%2B3%5C%20%20%5Ctextgreater%20%5C%2019" id="TexFormula1" title
IceJOKER [234]

Answer:

x > 4

Step-by-step explanation:

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Hope this helps.

6 0
3 years ago
For the equation 3x - 5y = -3, what is the value ofy when x is 1?<br> 6/5<br> -6/5<br> 5/6
Law Incorporation [45]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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