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The first term is 12.

Since I cannot edit my post, I have to repost it.

Someone's playing games with me; the base CD was 38 and now is 32. 

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AB = 25       CD = 32

MN = 57        MO = 25          MR = 28.5            OR = 3.5 

XY = OR = 3.5     

Can someone please hide this question? Thank you

Also please hide any other problems I have posted

Thanks in advance :)

thx I just got it XD

w + w    + L + L =  8w

2L = 6w

L = 3w

w * 3w = 243

3w^2 = 243

w = 9  in           

I just calculated it and thats what i got

wait is it 9?

 2  4/6    +   1   1/6   =   3  5/6 cups needed

3  *  36 =  $108

This is a linear graph that goes through 0,0

 so look at 36 dollars......scan across to the graph and then go down to find 16 notebooks for 36 dollars

you have THREE   36 dollars     so THREE x 16 = 48 notebooks

As shown in the diagram, PQ is the median of trapezoid ABCD where AB = 25 inches and CD = 32 inches. Find XY in inches.

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I find CPhill's method to be very clever, so I'll use and simplify this method even more.

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AB = 25          CD = 38                  

MN = 63        MO = 25         MR = 31.5        NO = 38        OR = 6.5        AM = 12.5

Important: Triangles ABO and OXY are similar.

Eureka!   If AB = MO then XY = OR

XY = 6.5 inches          

there are (2010-2)/2+1=1005 circled red, and (2010-5)/5+1=402 circled blue, and there are (2010-10)/10+1=201 circled both blue and red, so

1005+402-201=$\boxed{1206}$ are circled once

thanks but I already solved it 

Oops!

so the answer for Shara is actually

4.2x5 = 21 hours per week for Shara

7/40 day  * 24 hr/day * 5 days = 21 hrs per week for Shara

7/80 wk   x 7 day/week  x 24 hr/day= 14 .7 hrs per week for Saul

You did do something wrong 

Shara works 5 days a week so it should be 4.2*5 but you did 4.2*7 

If it were SOLID it would be made of   8 x 8 x 8  cubes  = 512

   to make a hollow shell you have to remove a 6 x 6 x 6 core = 216

512 - 216 = 296 cubes remain

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Search up your question online before posting it here, it probably has been solved before

b = 3a

p = 3a + 4

l = a - 2

Assuming she has any lemons  'a'  would have to be at least 3 

so      3   apples     1 lemon     13 pears   9 bananas =   26 fruits

7/40 a day means that Shara works (7/40)*24=4.2 hours a day.

Multiplying 4.2 by 7, we get 29.4 hours per week, so Shara works 29.4 hours per week

Saul works 7/80 week each week

There are 168 hours in a week, so we multiply 7/80 by 168 to get 14.7 hours per week

Shara works more than Saul each week

Shara works 29.4 hours a week and Saul works 14.7 hours a week

Let me know if I did anything wrong 

Let  m  be the mystery number.

9x² + 6x + m  =  (3x)² + 2(3x) + m

Now we can substitute  a  for  3x  like this:

a² + 2a + m

Now we don't have to worry about the coefficient of  9  on the first term....and so  m  is half the coefficient of the middle term squared.

m  =  ((1/2) * 2)^2   =   1^2   =   1

Check:

9x² + 6x + 1   =   (3x + 1)(3x + 1)   =   (3x + 1)²

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search up your question online before asking for help on here, it probably has already been solved before 

(3x+1)^2 =   9x^2 + 6x + 1

3a - 15 = 6

Add 15 to both sides to cancel out the 15 on the left side

3a = 21

Divide 21 by 3

a = 7

$10-k^3$