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3 years ago

Divide 1/5 by 1/2. Input your answer as a reduced fraction.

Mathematics

2 answers:

NARA [144]3 years ago

8 0

Answer:

2/5

Step-by-step explanation:

The original answer was 4/10, but as a reduced fraction, it is 2/5.

Version of how I got it:

5 and 2 have 10 in common, so that is the denominator

1 and 1 have 1 in common. Keep change and flip, to turn this into a 4. <em>this rule applies because 1 + 1 = 2, and 2 x 2 = 4.</em>

finally...

4/10 -- 2/5

hope this helps!

ad-work [718]3 years ago

5 0

Answer:

2/5

Step-by-step explanation:

1/5 / 1/2= 1/5 x 2/1

2/5

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3 years ago

Read 2 more answers

The point A(−4,5) is reflected over the point (2,3) and its image is point B. What are the coordinates of point B?

Allisa [31]

Answer: (8,1)

Step-by-step explanation:

The line that connects (-4,5) and (2,3) has a slope of (-2/6) or -1/3. The y-intercept is calculated from one of the points: 3 = -(1/3)*(2) + b

b = 3 2/3

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3 years ago

The pet store had food priced at $10 and now is priced at $18. What is the percent markup?

VikaD [51]

Answer:

180%

Step-by-step explanation:

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3 years ago

Need help with math homework

Pavel [41]

Hello!

The answer for A is:

$X1=-1\\X2=5$

The answer for B is: The rocket will hit the lake surface in 5 seconds.

Defining the terms:

$a=-16\\b=64\\c=80\\$

So, replacing it in the quadratic equation (it's given to you in the exercise)\\

$x=\frac{-b+-\sqrt{b^{2}-4*a*c } }{2*a}$

$x=\frac{-64+-\sqrt{64^{2}-4*-16*80 } }{2*-16}$

$x=\frac{-64+-\sqrt{64^{2}+5120} }{-32}=\frac{-64+-\sqrt{4096+5120} }{-32}\\x=\frac{-64+-\sqrt{9216} }{-32}=\frac{-64+-\ 96 }{-32}\\x=\frac{-64+-\ 96 }{-32}\\x1=\frac{-64+\ 96 }{-32}=\frac{32}{-32} =-1\\\\x1=\frac{-64-\ 96 }{-32}=\frac{-160}{-32} =5\\$

We are working with a quadratic equation, so we will have two possible results,

$X1=-1\\X2=5\\$

Now, we are asked to find the time, time can not be a negative value, we have to discard X1 (-1) since it's a negative value, knowing that, the rocket will hit the lake after 5 seconds.

Have a nice day!

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4 years ago

I need help this is my hardest question

MaRussiya [10]

use soh cah toa!

Step-by-step explanation:

soh= sin opposite/hypotenuse

sin (65°) 5/x

* x *x

x* (sin 65°)= 5

x (0.906308) =5

÷0.906308 = ÷0.906308

x≈ 5.51689

x≈ 5.5

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3 years ago