2x - y = 0
2x = y
3x - 2(2x) = -3
3x - 4x = -3
-x = -3
x = 3
2(3) = y
6 = y
Let the price of one CD be c.
The 5 CDs cost 5c.
The cost of 5 CDs and a $12 DVD is
5c + 12
Answer:
.09×30=2,70 20.50-2.70=17.80
Somewhat true but I need more information to this problem
Step-by-step explanation:
the height from the right angle in a right-angled triangle is the square root of the product of the segments of the Hypotenuse the height is splitting it into.
so,
x = sqrt(7×9) = sqrt(63) = 3×sqrt(7)