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Harrizon [31]
3 years ago
11

Which of the following systems of linear equations has no solution?

Mathematics
2 answers:
mrs_skeptik [129]3 years ago
5 0

Answer:

C?

Step-by-step explanation:

Because there is no x I think.

salantis [7]3 years ago
3 0
The third one because both are y equations i think
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If working together, brothers Tom and Jack can paint a wall in 4 hours, how much time would it take Jack to paint the wall alone
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T+J=4 hours
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3x=240 minutes
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Use the change of base formula to evaluate the logarithms to the nearest thousandth.
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Answer:

1.861

Step-by-step explanation:

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1) A home improvement store sold wind chimes for w dollars each. A customer signed up for a free membership card and received a
elena-s [515]

Answer:

Step-by-step explanation:

The original price of the wind chimes at the home improvement store is $w.

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3 years ago
Translate the sentence into an equation
Mrrafil [7]
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8 0
2 years ago
The Cunninghams are moving across the country. Mr. Cunningham leaves 3 hours before Mrs. Cunningham. If he averages 40mph and sh
svp [43]
Recall your d = rt, distance = rate * time

now, if say, by the time they meet, Mr Cunningham has travelled "d" miles, that means Mrs Cunningham must also had travelled "d" miles as well.

However, he left 3 hours earlier, so by the time he travelled "d" miles, and took say "t" hours, for her it took 3 hour less, because she started driving 3 hours later, so, she's been on the road 3 hours less than Mr Cunningham, so by the time they meet, Mrs Cunningham has travelled then "t - 3" hours.

\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
\textit{Mr Cunningham}&d&40&t\\
\textit{Mrs Cunningham}&d&80&t-3
\end{array}
\\\\\\
\begin{cases}
\boxed{d}=40t\\
d=80(t-3)\\
----------\\
\boxed{40t}=80(t-3)
\end{cases}
\\\\\\
\cfrac{40t}{80}=t-3\implies \cfrac{t}{2}=t-3\implies t=2t-6\implies 6=2t-t
\\\\\\
6=t
5 0
3 years ago
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