# math gr 2

posted by .

P(n,5)=20P(n,3)

Solve for n

• math gr 2 -

N!/(N-5)! = 20n!/(n-3)!

1=20(n-5)(n-4)

multiply out the last two terms, then find n with the quadratic formula.

## Similar Questions

Q=2000-20P
2. ### 12 math

solve for n a. c(n,2)=28 b. p(n,5)=20p(n,3)
3. ### math (factoring quadratic trinomials)

i am doing factoring with quadratic trinomials, And I don't understand any of it! The problem im working on is 5p2-22p+8 I factored it out to be (5p2-20p)(40p2-2p) I am so stuck, can anyone help
4. ### Math

Lydia wants to buy picnic tables, benches, and permanently installed grills. On one page she notices that 5 picnic tables, 10 benches, and 3 grills sell for \$1330. On another page she sees that 20 picnic tables, 30 benches, and 20 …
5. ### ALGEBRA!!!!

16p³+12p²+20p+15
6. ### maths-urgently

An arc of a circle is of length 5p cm and the sector is bounds has an area of 20p cm^2 find the radius of the circle.
7. ### Macroeconomics

Suppose the demand curve is given by Q=200-20p. What is the price elasticity at P=\$4?
8. ### algebra

Help me Solve 1. (2p2 + 7p - 39) ÷(2p-7) 2 (n3 + 7n2 + 14n + 3) ÷ (n +2) 3. (p3-10p2 + 20p + 26) ÷ (p-5) 4. (v3- 2v2 -14v - 5) ÷ (v + 3) 5 ( x3 - 13x2 + 40x + 18) ÷ (x -7)
9. ### algebra

4p^3 + 20p^2 - 45 = 9p
10. ### math

How many degrees did the minute hand turn. 4.20p.m

More Similar Questions