The values of x and y vary directly and one pair of values are given. write an equation that relates x and y. simplify completely.
x=-5,y=10
need

y = - 2x

Step-by-step explanation:

Given that x and y vary directly then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition x = - 5, y = 10

k = = = - 2

y = - 2x ← equation of variation

y=mx+b is the final answer!   : )

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐