y= 2x-10
y=4x-8
------------subtract
0 = -2x - 2
-2x=2
x = -1
y= 2x-10
y= 2(-1)-10
y = -2 - 10
y = -12
answer: x = -1 and y = -12 or (-1,-12)
Answer: it's c
Step-by-step explanation:The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
56+21+55+30+33/5=39
Perimeter is the sum of the sides which is 9n-12 and since all 3 sides are equal then the length of one side is (9n-12)/3= 3n-4
Answer:
I'm pretty sure it already is rounded to the nearest thousandth.
Step-by-step explanation:
Answer:
B) $28.25
Step-by-step explanation:
To solve this problem, you need to find how much the discount is.
To find the discount you multiply 75% by $112.99, which equals $84.74.
Now you have to find how much the bike will cost with the discount.
So you have to subtract $112.99 by $84.74, which equals $28.25
So the discounted price of the bike is $28.25.