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serg [7]
2 years ago
13

Guys this question is really difficult ok what... is... 2+2?

Mathematics
2 answers:
Mariana [72]2 years ago
6 0
4444448)$$7bufjfifiriifri
maw [93]2 years ago
4 0

Answer:

4

Step-by-step explanation:

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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
(06.06) 4 3(x + 4) represents the area of the rectangle above. Which expression below is equivalent by the Distributive Property
Alexeev081 [22]

Answer:

im on the same one if i get it right i will comment and tell u k?

Step-by-step explanation:

kk

6 0
2 years ago
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Find the inequality represented by the graph ​
Naya [18.7K]
The answer is 2 and over it is 3
3 0
3 years ago
I know im dumb srry but help plz....​
sineoko [7]
The answer is A because 75 + 15 is 90
4 0
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If the sections of the circle are as follows, what fraction represents the purple sector?
Keith_Richards [23]

Answer:

Should be 1/7

Step-by-step explanation:

I just measured it.

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