What should be done to these equations in order to solve a system of equations by elimination? I- 3x + 2y = 16
12x + 5y = 21
Choose one correct

Multiply the first equation by 2 and the second equation by 3.

Multiply the first equation by 3.

O Nothing needs to be done, since they both equal have 2's and 3's for coefficients.

O Multiply the first equation by
3 and the second equations by 2​

B is the correct answer

Step-by-step explanation:

Since it gets rid of the y so you could find the x and then work around to find the Y.

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.