Answer:
x=-19
y=55
Step-by-step explanation:
y=-3x-2.
5x+2y=15
substitute y into 5x+2y =15
5x +2 (-3x-2) = 15
distribute
5x -6x-4 = 15
combine like terms
-x-4 =15
add 4 to each side
-x-4+4 = 15+4
-x=19
multiply by -1
x = -19
now lets find y
y= -3x-2
y = -3(-19) -2
y = 57-2
y =55
Angle sum of a triangle = 180°
Therefore:
Equation No. 1 -
2 ( 2x - 4 ) + 5y = 180°
2 ( 2x - 4 ) + 5 [ ( 2x - 4 ) / 5 ] = 180
4x - 8 + [ 5 ( 2x - 4 ) / 5 ] = 180
4x - 8 + 2x - 4 = 180
4x + 2x = 180 + 8 + 4
6x = 192
x = 192 / 6
x = 32°
Equation No. 2 -
5y = 2x - 4
y = ( 2x - 4 ) / 5
ANSWER:
x = 32°
Answer:
7
down
3x-6
Step-by-step explanation:
g(x)=3x-6
f(x)=3x+1
Thus, g(x) is just f(x)-7
Answer:
or 
Step-by-step explanation:
5 1/4 divided by 2 3/8 basically means
÷
. Reduce the expression by cancelling the common factors.
Answer: 18%
Step-by-step explanation: Percentage of 9 in 50=
9/50 × 100= 0.18×100= 18%
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