Charger421

Plug in your numbers:

In this case you can read the math right in the sentence. Where you see "is" substitute "=", where you see "more" substitute "+" and times is multiplication. So, Y is 2 more than 4 times X becomes Y = 2 + 4X

The second part if straight forward. Their sum is 51. X+Y=37.

Now substitute 2+ 4X for Y in the second equation.

X + 2 + 4X = 37 Combine like terms.

5X + 2 = 37 Subtract 2 from both sides.

5X = 35 Divide both sides by 5.

X=7 Substitute 7 for X into either equation to get that Y =30

Plug in your numbers:

https://www.quora.com/Consider-f-x-g-x-and-h-x-where-h-x-fog-x-Given-that-g-3-7-g-3-4-and-f-7-5-find-the-gradient-of-the-normal-to-the-curve-of-h-at-x-3-How-can-I-solve-this-question

AB = 10since ABC is a 6-8-10 triangle. 6^2 = 10x

3.6 = x

AD        AB

----   =  ------

AB        AC

Please could you send a picture or word it better?

presale = p

door = d

(1) p + d = 850

(2) 5p + 9d = 6050

(1) * 5 = 5p +5d = 4250

(2)- (1) = 4d = 1800

d = 450 tickets

The probability of exactly two tails is

7C2 (1/2)^7 = 21/128 

since there are 7C2 = 21 ways to choose 2 from 7, and every specific sequence of 7 throws has probability (1/2)^7.

Here you go:

Here you go

Use this as a format and plug-in your numbers: