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alex41 [277]
3 years ago
14

Write an appropriate inverse variation equation if y = 9 when x = 3.

Mathematics
1 answer:
pav-90 [236]3 years ago
3 0
\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------\\\\
\begin{cases}
y=9\\
x=3
\end{cases}\implies 9=k3\implies \cfrac{9}{3}=k\implies \boxed{3=k}
\\\\\\
thus\qquad y=3x
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8 0
3 years ago
Pleaseee help guys:(
nadya68 [22]
≈0.524094
If you ever needed help with math you can download Photomath too that’s what I use
8 0
3 years ago
Read 2 more answers
-4x &gt; 500...........................................
user100 [1]
-4x > 500
Divide -4 on both sides.

(Now this is very important, whenever you divide OR multiply an equality by a NEGATIVE number the sign will ALWAYS flip.)

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~
3 0
3 years ago
Billy left home at 9 a.M. And rode his bicycle to the park at an average speed of 10 miles per hour here I got the park at 9:30
tamaranim1 [39]

Answer:

Park is <u>5 miles</u> from Billy's home.

Step-by-step explanation:

Given:

Billy left home at 9 a.m. And rode his bicycle to the park at an average speed of 10 miles per hour here and got the park at 9:30 a.m.

Now, to find the distance from park to Billy,s home.

Time it took Billy to rode his bicycle from park to home is from 9.30 a.m to 9.30 p.m.

So, the time = (9.30 - 9.00) = 30 minutes

=\frac{30}{60}  =0.5\ hour.

Speed = 10 miles per hour.

Now, to get the distance from park to Billy's home we put formula:

Distance=Speed\times Time.

Distance=10\times 0.5

Distance=5\ miles.

Therefore, park is 5 miles from Billy's home.

3 0
3 years ago
If anyone knows, please help!
abruzzese [7]
You're solving an equation approximating the number of farm.incidents in Wales and England between 1980-88.

F = 3500
3500 = 250x - 493000
3500 + 493000 = 250x
496500 = 250x
496500/250 = x
1986 = x
6 0
3 years ago
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