Answer:
x = -4
y = 4
Step-by-step explanation:
Subtract the two equations
be sure to take the minus sign through the whole bottom equation
the 6y's will cancel and you are left with 3x = -12 or x =-4
Then take the x= -4 and plug it back into the top equation to get y = 4
The solution is x = 2 , y = 3.5
<h3>What is Equations?</h3>
An equation is a mathematical statement that is made up of two expressions connected by an equal sign
Given:
2y= - x+9 ......................( 1)
3x-6y=-15 ........................ (2)
From (1),
x = 9 - 2y ........................... (3)
Put x = 9 - 2y into (2) , then becomes :
3 ( 9 - 2y ) - 6y = - 15
27 - 6y - 6y = - 15
27 - 12y = - 15
27 + 15 = 12y
42 = 12y
y = 3.5
Now, put y = 3.5
x = 9 - 2y
x = 9 - 2 (3.5 )
x = 9 - 7
x = 2
Hence, x = 2 , and y = 3.5.
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Answer:
its is a geometric sequence not arithmetic
58 to x should be the ratio of 6/3 or 1/2 if they are similar.
Find out how much bigger 58 is compared to 6, the matching side on the other polygon.
58/6 = ~9.7
The x side should be half of this, just like it is on the smaller polygon.
9.7/2 = 4.85
4.85 x 3 = 14.55