You won a $100 gift card to purchase music and videos through an online store. you bought $48.40 worth of movies and 40 songs. write an equation that represents your purchase using s to represent the cost of each song.   how much did each song cost?

Equation

Total = movies plus songs.

Givens

Total = 100

Movies = 48.4

Songs Cost = x

Number of Songs = 40

Solve

100 = 48.4 + 40x       Subtract 48.4 from both sides.

100 - 48.4 = 40x

51.6 = 40x                  Divide by 40

51.6 / 40 = x

1.29 = x

Conclusion

Each song cost $1.29

x = 25

step-by-step explanation:

a^2+b^2=c^2

7^2+24^2=c^2

49+576=625

sqrt625=25

x=25

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2