Answer:
Step-by-step explanation:
lets rewrite the equations so that the x and y are on one side and the constant on the other.
2y-x=3
-y+x=0
(we can cancel out the x because one is positive and one is negative)
y=3
(now plug the y value into any equation you want to)
-(3)+x=0
x=3
so our values are
x=3,y=3
The answer should be 21 hope it helps
Exactly the same way you find any missing item in any other subject:
You take the information you're given, and you collect everything you know about
relationships between the information you have and the item you have to find.
Finally, you use the relationships and the given information to find the value of the
missing item.
The process you'll use to find the circumference of a circle will depend on what
information you DO have about the circle.
Answer:
19/ 143
Step-by-step explanation:
There are 19 rock songs out of 143 total
P(rock) = number of rock songs/ total
= 19/ 143
Parallel lines has equal slopes.
For line, 2x + 3y = 4
3y = -2x + 4
y = -2/3 x + 4/3
i.e. slope is -2/3
Equation of a line is given by y - y1 = m(x - x1), where m is the slope and (x1, y1) is a point on the line.
y - (-4) = -2/3 (x - 1)
y + 4 = -2/3 x + 2/3
3y + 12 = -2x + 2
2x + 3y = 2 - 12
Required equation in standard form is 2x + 3y = -10