-2 (x-2y=-5)
-2x+4y=10
2x+3y=4
0+7y=14
/7. /7
y=2
2x+3 (2)=4
2x+6=4
-6. -6
2x=-2
/2. /2
x=-1
Answer:
the last one
Step-by-step explanation:
Answer:
$2.20
Step-by-step explanation:
11 pounds of rice for $5.
Divide the $5 by 11.
11 divided by 11 is 1.
So 1 pound of rice is $2.20.
(PS i might be wrong, SO SORRY IF I AM)
Answer:
Both of the angles will add up to 180 degrees so let’s make an equation.
5x-5+2x+10=180
First we collect like terms
5x+2x-5+10=180
Add them up
7x+5=180
Move the constant to the right
7x=180-5
7x=175
7x/7=175/7
x=25
So yes it’s true x=25.
Now we find the respective angles,
5x-5
5(25)-5
125-5
120
So angle one is 120 degrees.
2x+10
2(25)+10
50+10
60
So angle two is 60 degrees.
Now to check,
120+60=180
Step-by-step explanation:
Answer:
Slope is 2/3
Y-intercept is (0, 0)
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
y = 2/3x
