During a sale at the electronics store, movies sold for $5 and CDs sold for $4.50. Declan spent $28 and bought a total of 6 movies and CDs. How many of each did he buy?

4 CDs and 2 Movies

Step-by-step explanation:

Set up variables

M = Movies

C = CDS

We can infer from the question these two equations :

5M + 4.5C = 28

M + C = 6

Solve :

C = 4

M = 2

answer: do you still need this?

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.