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Evgesh-ka [11]
2 years ago
11

Plz help me answer the whole page

Mathematics
1 answer:
dangina [55]2 years ago
8 0
#2 5.88 #3 6.510 #4 7.578 #5 9.835 #6 11.910 #7 3.72
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Blank precent of 200miles is 150 miles
gavmur [86]
150/200×100%=75%
75% of 200 miles is 150 miles
5 0
3 years ago
Read 2 more answers
At maximum speed, an airplane tracked 1720 miles against the wind in 5 hours. Flying with the wind, the plane can travel the sam
nataly862011 [7]
Recall your d = rt, distance = rate * time.

as the plane goes against the wind, the plane is not really flying at "x" mph, but is really going slower, at " x - y ", because the wind is subtracting speed from it.

likewise, when the plane is going with the wind, is not really going at "x" mph, but at " x + y ", is going faster due to the wind, thus

\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
\textit{against the wind}&1720&x-y&5\\
\textit{with the wind}&1720&x+y&4
\end{array}
\\\\\\
\begin{cases}
1720=(x-y)5\implies \frac{1720}{5}=x-y\\\\
344=x-y\implies \boxed{y}=x-344\\
---------------\\
1720=(x+y)4\implies \frac{1720}{4}=x+y\\\\
430=x+y\implies 430=x+\left( \boxed{x-344} \right)
\end{cases}
\\\\\\
430=2x-344\implies 774=2x\implies \cfrac{774}{2}=x\implies 387=x
6 0
2 years ago
An asteroid is 10^15 miles away from earth, and it is traveling at a speed of 10^5 miles a day.
Maslowich
Asteroid to reach earth 82days
3 0
2 years ago
How many centimetres is 0.7 inches? Round to the nearest tenth.
wlad13 [49]

it is 1.8 centimeters

7 0
1 year ago
How do I convert standard form to point slope
Fittoniya [83]

The point-slope form:

y-y_1=m(x-x_1)

(x_1,\ y_1) - given point

m - given slope

The standard form:

Ax+By=C


y-y_1=m(x-x_1)    <em>use distributive property</em>

y-y_1=mx-mx_1      <em>add y_1 to both sides</em>

y=mx-mx_1+y_1      <em>subtract mx from both sides</em>

-mx+y=-mx_1+y_1       <em>change the signs</em>

mx-y=mx_1-y_1

8 0
2 years ago
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