X will equal -2
-10+ 8x= -26
8x= -16
x=-2
Let z be any number (like x would be)
if we set z equal to 2x-6y, then we get z = 2x-6y
The system
2x-6y = 8
2x-6 = 3
turns into this new system
z = 8
z = 3
but z is a single number. It can't be both 8 and 3 at the same time. So there are no solutions
Answer:
$6.03
Step-by-step explanation:
The question is asking us how much each pair of socks cost. With the information we are given, we know that there are 5 pairs and that they all cost the same amount. If the total were just the 5 socks, we could easily divide the total by 5 to get the price of each pair but that's not the case. The soccer ball is included in the final cost. To overcome this, we just have to subtract the soccer ball's cost ($45) from the total.
So we subtract $45 from $75.15, giving us $30.15, the total amount of all the socks. However we need to find out how much each pair costs and there are 5 of them, so we divide 30.15 by 5. This gives us the answer, $6.03.
Each pair of socks cost $6.03.
Simpler Explanation:
- $75.15 - $45 = $30.15
- $30.15 / 5 = $6.03
The answer is $6.03
speed of plane flying east = x
speed of plane flying west = x+75
total speed = 2x+75
distance after 4 hours ( 7-3) = 8x+300
8x+300 = 5460
8x = 5160
x = 5160/8 = 645
speed of plane flying east = 645 km/h
Answer:
Step-by-step explanation:
The question is faulty. It works once it gets to + 1, +2, +3
The other x values should be 0 and - 1 instead of -1 and -3.
Here's the formula I get.
f(x) = 2*3^(2x + 1)
f(0) = 2*3^(1)
f(0)= 6
f(-1) = 2*3^(-2 + 1)
f(-1) = 2*3^(-1)
f(-1) = 2/3
f(-2) = 2*3^(-2*2 + 1)
f(-2) = 2*3^(-4 +1)
f(-2) = 2*3^(-3)
f(-2) = 2/27
Since my answers do not agree with the given answers, I can do nothing more to help you. I will pass this along to someone I know who will see through it.
