The answer is 7, 7 cds were purchased, hope this helps have a great day!
They gave you the slope and one point, m = 5 and (2, 3) so we have a formula that is,
y - y1 = m(x - x1) the 1s are under and then you simplify plug them in and find the answer
y - 3 = 5(x - 2)
y - 3 = 5x - 10
y = 5x - 10 + 3
y = 5x -7. << your answer
hope this helped, blessings!
Answer:
y= \frac{15}{7}x + 7
not sure if that will work so
y = 15x/7x + 7
Step-by-step explanation:
Answer:
x=5, y=2, z=2
Step-by-step explanation:
y=3x-13
-3x+4y+2z = -3x + 4(3x-13) + 2z = 9x+2z-52 = -3
9x + 2z = 49 ... (1)
2x-4y-z = 2x-4(3x-13)-z = -10x-z+52 = 0
10x + z = 52 ... (2)
(2)*2-(1): 11x = 55 <u>x = 5</u>
y = 3x-13 = 15-13 = 2 <u>y=2</u>
z = (49-9x) / 2 = 2 <u>z = 2</u>
24 miles =3 hours
Therefore 10 hours =24 multiple by 3 which is = 72 miles