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Try looking at this site

r+13/4=5/2

SUBTRACT 13/4 from both sides

r=5/2 - 13/4

r=10/4-13/4

r= -3/4

15% is 15 over 100. Your answer is x over 60. To find the answer, you multiply 60 and 15 and then divide it by 100. This will work for all 3 numbers.

If you have 13 divided by 4 the answer is 3 remainder 1  This is normally written as     $$3\frac{1}{4}$$

BECAUSE

If you have 13 cakes and split them between 4 people

they each get 3 cakes but there is 1 left over

If that one is cut into quarters then they also get 1/4 of a cake each.

OH

AND I LOVE YOUR BRIGHT PICTURE!!

I LOVE MATH TOO!!

13/4 = 3 1/4. 5/2 = 2 1/2. 

The question it self is not logical, and therefore, there is no answer to this question.

-Pauline. 

Is there a question here?

Or you can draw the right angled triangle and get the exact value on the 3rd side using pythagoras and 'read' the cos off the triangle.

1.75 equals 7/4, or if you want it in impromper fraction, its 1 3/4.

 $${\mathtt{1.75}} = {\frac{{\mathtt{7}}}{{\mathtt{4}}}}$$

-xMidnightPandax

Good one Chris. 

The question is incomplete. sorry

1/4 

that is the answer

Maybe you mean 9:30pm (night) to 6:45am (morning)

9:30 till midnight is 2 hours and 30minutes

midnight till 6:45 is 6 hours and 45 minutes

30 minutes +45 minutes = 30+30+15 = 1 hour 15 minutes

2hour+6hours +1hour+15minutes = 9 hours and 15 minutes

You can switch the calculator to "fractions" mode. 

If you have a remainder, then you have a remainder.

So, if the remainder is 7 and the answer is 54, write the answer as:

54 R7

1.5/100*60

there will be an infinite number of solutions

you need 2 equations for solve for 2 unknowns

subtract 5 and add 13 to both sides

then divide both sides by 3

$$slope=\frac{y_2-y_1}{x_2-x_1}$$

Slope-intercept form:

$$y=(slope)x+b$$

To find b, take one point, and put that in for y and x. Then, solve for b!

Let me know if you need any more help.

always look under the bed.  That is where most people can find everything.

wouldn't it be easier just to [press the button on you calc rather than ask here?

use the site calc on the home page

sup' i love saying hi too

asdfghjkl because it nee

3x^2+2x+1=0

lets look at the discriminate in the quadratic formula

$$\triangle =b^2-4ac\\\\
\triangle =2^2-4*3*1\\\\
\triangle =4-12\\\\
\triangle =-8\\\\$$

In the full formula you have to take the sqrt of this and you cannot take the sqrt of a negative number.

Therefore this has no solutions (it has imaginary ones but you probably don't need to worry about those. )