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Here are five cards. 1 5 7 9 11 One of the cards is removed. The mean of the numbers on the remaining four cards is 6 Which card was removed    

If four cards average 6, then they must total 24. 

18 & 6 will do it, so the removed card was the 9.     (18=7+11 and 6=5+1)  

_.

Answer:

27
Explanation: 

40% is written as a decimal, 0.40

decreasing $75 is 75 - 0.4*75

again decreasing the new amount is (75-0.4*75) - 0.4*(75-0.4*75)

I have more questions could you answer them pls?

Sry it is 120 is what percent of 40 extremely apologise!!! And yes CalTheGreat the answer is right it is 300%

Odd wording       but  120% of 40 =   1.2 (40)  = 48

Find the slope between the two marked points

(1- -5 ) / (5-0) =  6/5

then use one of the points for point slope form

(y-1) = 6/5 (x -5)      which you can re-arrange to slope intercept form

y = 6/5 x -5

enjoy the conversation LOL!

Note that triangle DEC is isosceles  with angles EDC and ECD  =31°

So angle  DEC  =180  - 2 (31)   =  180  - 62   =  118°

And angle BEC  is supplemental to DEC =  180  - 118  =   62°

Yea well, if half the population gets inoculated it might be enough to protect the other half as well.

It will certainly cut down on infection rates anyway, so the hospitals will have more chance of coping.

I will get inoculated when I am told to but I don't care how long away that is. 

I hope our government starts demanding people are inoculated before they return, or visit Australia. I know that is being looked at.

We  have a large supply.......what we DON'T  have is a high vaccination rate.......some  people  are still balking at getting the vaccine.......go figure   !!!!

Gee you two got in quick!

I know none of my friends in Germany have theirs yet.  Not even the first one. 

And very few in Australia have it.  Our supply of vaccine has been partially blocked by Italy.

Which is not all that unreasonable.   Europeans need it far more than we do.

Life is almost normal here in Australia.

To continue  Varxaax's  solution

10 - 5x  >  0

10  > 5x       divide both sides by  5

2 > x      which also means that

x <  2 

x ( x + 2)  = 3(x + 1)  + 17           simplify

x^2  + 2x   =  3x  + 20         rearrange   as

x^2 - x  -20   =  0       factor as

(x -5) ( x + 4)   =20

The first factor is what we need

x  - 5 =    0

x = 5

x + 1  = 6

x + 2 =  7

Proof

5*7  = 3 (6) + 17

35  =  18  + 17    (true)

4-2x>3x-6

Move things around and we get 10-5x>0

Put that into a grpahing calculator or something cause I don't know what heebee jeebies CPhill does to bend desmos as his will.

Yay!

Ok thanks! That's all I needed!

5.  Note  that since  p(x)  has degree 11  and q(x)  =  7

Then  p(x)  + g(x)   will  have  a degree of   11....in other words.....the degree  of q(x)  is irrelevant in the addition