Answer:
x = -6
Step-by-step explanation:
y + 64 + 27 = 180
y + 91 = 180
y = 89
x + 97 + y = 180
x + 97 + 89 = 180
x + 186 = 180
x = -6
Answer:
We need to find 5 + 10 + 15 + ... + 485 + 490 + 495. There are 99 numbers that are being added. To add this we can do 5 + 495, 10 + 490, 15 + 485 and so on. These pairs have a sum of 500 and since there are 98 / 2 = 49 pairs their sum is 500 * 49 = 24500. Since there is an odd number of numbers that are being added, there is one number that does not belong to a pair. That number is the 50th number in the list which is 50 * 5 = 250. Therefore the answer is 24500 + 250 = 24750.
Answer:
Five hours at both ski resorts cost the same
Step-by-step explanation:
Let x = hours Let y = cost
Black Diamonds Ski Resort: 25 + 10x = y
Bunny Hill: 50 + 5x = y
Since the cost should be equal, we can substitute for these two equations.
25 + 10x = 50 + 5x
Solve for x:
x = 5
Check: Plug in for x
Black Diamonds Ski Resort: 25 + 10(5) = 25 + 50 = $75
Bunny Hill: 50 + 5(5) = 50 + 25 = $75
The cost is the same, so we know that five hours has the same cost at both ski resorts.
I hope this is correct! Please mark me as brainliest if this is correct :3