Answer:
225
Step-by-step explanation:
a
- bx + c
225
= <em> - 30x + 225</em>
Answer:
A) The equation is <u>y = 5/6x</u>
B) The constant of proportionality is 5/6
Step-by-step explanation:
If it cost $5 to send 6 packages, you can write this as 5 over 6 (5/6), as 5 representing y and 6 as x. So the first equation is k = y/x, so in this case it can be written as k = 5/6. Then it can be written as y = kx, so in this case it will be y = 5/6x
Answer:
a = 25
b = 100
c = 17
d = 68
Step-by-step explanation:
-1/3 = -5/15
-2/5 = -6/15
-5/15 > -6/15, so -1/3 > - 2/5
Answer:
x = 8 or x = -8
Step-by-step explanation:
x^4 - 256 = 0
<=>x^4 - 4^4 = 0
<=>(x - 8)(x + 8)(x^2 + 64) = 0
Case 1 :
x - 8 = 0
<=>x = 8 (choose)
Case 2:
x + 8 = 0
<=>x = -8 (choose)
Case 3:
x^2 + 64 = 0
<=>x^2 = -64 (nonsense)
so x = 8 or x = -8
Done :))
