Answer:
C. 3x+6y=9 and-2x-4y=4
Step-by-step explanation:
Given
Steps:
The attachment completes the question
(a): -2x+4y=4 and -3x+6y=6
Multiply by 2:
Multiply by 3:
Add together
B. 3x+y=12 and -3x+6y=6
Multiply by 2:
Multiply by 3:
Add together:
C. 3x+6y=9 and-2x-4y=4
Multiply by 2:
Multiply by 3:
Add together:
This is the equation the student could have used because 0 = 30 means the equation has no solution.
6hrs = 360 minutes
360/7.5 = 48 bottles required
500g = 0.5kg
48x0.5 = 24 kg
24x 5 = 120p
Answer:
Surface area of a square prism = 4 × (s × h) = 4sh, where, s is the length of the side of the square and h is the height of the square prism.
Answer:no because 2 sides of a triangle have to be equal to the other angle or greater than the other angle
Step-by-step explanation:
Sort of, say you take 99% off of something that is $100. You will end up paying $1. Then if you take another 99% off, you wil pay $0.01. Takig another 99% off will give you $0.001, but money only goes to two decimal points, so its free from a money standpoint, but there is still a cost.