Step-by-step explanation:
look at the picture shown
Answer:
The solution to the system that is created by the equation y = 2x + 10 is
( -8 , -6 )
Step-by-step explanation:
Given:
y = 2x + 10
Justification:
For a Point to be a solution of the system of the equation of a line then it must satisfy the equation by substituting the X coordinate and Y coordinate.
Left hand side = Right-hand side
For point (–8, –6)
Put x = -8 and y = -6 in the given equation then
Left hand side = y
= -6
Right-hand side = 2× -8 + 10
= -16 + 10
= -4
∴ Left hand side = Right-hand side
∴ Point (–8, –6) is the Solution for y = 2x + 10
For points (–4, –2), (0, 2), and (2, 4)
Left hand side ≠ Right-hand side
∴ Points (–4, –2), (0, 2), and (2, 4) are not a Solution.
Answer:
y = -27
Step-by-step explanation:
- Multiply the entire equation by 6
2*(y + 1) - (3y - 1 ) = 30
- Multiply (y +1) by 2 and (3y - 1) by (-1)
2y + 2 - 3y + 1 = 30
- Isolate y term by taking the constant term to RHS
2y - 3y = 30 - 2 - 1
-y = 27
y = -27
Answer:
Step-by-step explanation:
if Meredith bought 20 kg and Courtney bough 10 kg less you'd do 20-10 to find how much Courtney bought, hopefully that makes sense. We are going to do the same thing here.
That means 2/5 - 1/10. To subtract fractions you need common denominators, like 5/6 - 1/6 = 4/6. The bottom numbers need to be the same. So how do we do that? Well, that 4/6 can be rewritten as 2/3, they are the same number. So we want to do the same with either 2/5 or 1/10... or maybe both. Well 4/6 becomes 2/3 because 4/2 = 2 and 6/2 = 3, so we need to use that thinking.
in 2/5 - 1/10, do you see something we can multiply by to make the bottom numbers the same? What if you multiplied 2/5 by 3 on the top and bottom? that would get us 6/15. Well that's too high, maybe we try 2 then. 4/10. And hey, that got us a 10, so we idn't have to change 1/10. Now we can do the problem.
2/5 - 1/10 = 4/10 - 1/10 = 3/10.
So Courtney bought 3/10 kg
To find the total weight we add. So now we have a similar problem.
2/5 + 3/10 Well we know what to change 2/5 to to get a 10 at the bottom.
2/5 + 3/10 = 4/10 + 3/10 = 7/10.
So in total they bought 7/10 (seven tenths) of a kilogram.
Let em know if something didn't make sense.
Answer:
50% chance
Step-by-step explanation:
2/4 marbles = 0.50 = 50%
