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jenyasd209 [6]
2 years ago
11

Can someone please let me know what the answer is?

Mathematics
2 answers:
Artist 52 [7]2 years ago
8 0

Answer:

B

Step-by-step explanation:

\dfrac{\sqrt{a}}{\sqrt{b}}=x\\\\Take \ square \ both \ sides,\\\\(\dfrac{\sqrt{a}}{\sqrt{b}})^{2}=x^{2}\\\\x^{2}=\dfrac{a}{b}

Brilliant_brown [7]2 years ago
3 0

Answer:

D

Step-by-step explanation:

I'm not 100% sure but since when you remove the square roots on a and b, you have to add it to X

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There are 35 men and 25 women on a bus. If 20 married couples leave the bus, the number of men is how many times the number of w
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8 0
1 year ago
Gavin goes for a run at a constant pace of 9 minutes per mile. Ten minutes later, Lars goes for a run, along the same route, at
sweet [91]

Answer:  The answer is 35 minutes.


Step-by-step explanation:  Given that Gavin goes for a run at a constant pace of 9 minutes per mile and after 10 minutes, Lars started running along the same route, at a constant pace of 7 minutes per mile. We need to find the number of minutes Lars will take to reach Gavin.

In 9 minutes, distance run by Gavin = 1 mile.

So, in 1 minute, distance travelled by Gavin will be

d_G=\dfrac{1}{9}=\dfrac{7}{63}~\textup{miles}.

Similarly,

In 7 minutes, distance run by Lars = 1 mile.

So, in 1 minute, distance travelled by Lars will be

d_L=\dfrac{1}{7}=\dfrac{9}{63}~\textup{miles}.

Now, since Lars started after 10 minutes, so distance run by Gavin in those 10 minutes will be

d_{G10}=\dfrac{10}{9}=\dfrac{70}{63}~\textup{miles}.

Now, difference between Lars and Gavin's rate of runnings is

\dfrac{9}{63}-\dfrac{7}{63}=\dfrac{2}{63}.

Therefore, the time taken by Lars to reach Gavin is given by

t=\dfrac{\frac{70}{63}}{\frac{2}{63}}=35.

Thus, the required time is 365 minutes.  


6 0
3 years ago
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