Consider the system of equations. 3x − y = 5,

2x + 3y = −15

1. Which value can the first equation be multiplied by to form opposite values on the y-term?
A.-3
b.-2
c.3
d.4
The solution to the system of equations is _
A.-5,0
B. 5,0
C.0,-5
D.0,5
.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?