Find the value of y for the following system of equations. 1/2x + y = 7 -1/3x + y = 7 (2, 7, or 7/2)

(x,y)=(0,7)

Step-by-step explanation:

1/2x + y = 7

-1/3x + y = 7

As we either of the equation is equal to 7

So we can combine them

So

1/2x+y=-1/3x+y

1/2x+1/3x=0

x(1/2+1/3)=0

x=0

1/2×0+y=7

y=7

answer: 1,380

step-by-step explanation:

1: you turn %15 into a decimal by moving the decimal point two places to the left.

2: and then you multiply .15 by 1,200 , which will get you 180.00

3: from there you will add 180 to 1,200

4: which will get you 1,380

hope it *im kind of slow so idk if my answer is right*

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.