X=2, y=4. Easiest way to solve this problem is to have the y's cancel out. Multiply the first equation by -2 and the bottom by 3. You'd want to do one as a negative number since both are already negative; making one positive makes everything easier.
Here you should find x = 2.
Then plug it back into one of the equations to solve for y.
y = 4. Check you work by plugging it back in.
If the L.H.S would be equal for both equations, and R.H.S would be unequal, then they don't have any solution,
so,c = 2
In short, Your Answer would be Option A
Hope this helps!
Answer:
Explanation:
Work out the equation:
1st row is 11 seat and the seat after it will be 6 more and 6 more after the second row and so on. This can be written:
6(x - 1) + 11 =
Where x determine the number of row.
Ex: if x = 1 thus, 6(0) + 11 = 11 seat which is the first row.
Find the number of seats in row 18:
6(18 - 1) + 11
6(17) + 11
= 102 + 11
= 113 seats
Answer:
Your slope of the line is -3/10.
Step-by-step explanation:
Use the following equation:
<em>m</em> (slope) = (y₂ - y₁)/(x₂ - x₁)
Let:
(x₁ , y₁) = (-2 , 7)
(x₂ , y₂) = (18 , 1)
Plug in the corresponding numbers to the corresponding variables:
<em>m</em> = (1 - 7)/(18 - (-2))
Simplify. First solve the parenthesis, then divide:
<em>m</em> = (-6)/(18 + 2)
<em>m</em> = -6/20
Simplify.
<em>m</em> = (-6/20)/(2/2) = -3/10
Your slope of the line is -3/10.
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It's graph B, remember you can use desmos