Answer:
Equivalent systems of equations review
Step-by-step explanation:
We're given two systems of equations and asked if they're equivalent.
x + 4y = 8 (1)
4x + y = 2 (2)
Interestingly, if we sum the equations in System A, we get:
Replacing the first equation in System A with this new equation, we get a system that's equivalent to System A:
This is System B, which means that System A is equivalent to System B.
C. octagon but even though u dont have no picture
You would add up the percentages first, which would bring everything up to 35%. You would then take the original cost of the item, which is $30 and multiple it by the 35%.
The equation would look like...
30 x .35 =
This will give you $10.50, which isn't the final answer.
You would then subtract 10.50 from the $30 that was asked for at the beginning by the retailer.
Your final answer is $19.50. :) Which isn't a bad deal if I say so myself.
Answer:
12742π Km
Step-by-step explanation:
The length of the rope is the circumference of the circle, that is
C = 2πr ( r is the radius ) Here r = 6371
C = 2π × 6371 = 12742π Km
Answer:
6
Step-by-step explanation:
the top and the bottom line on the squares and with the top and the bottom line on both of the arrows
