Use the matrix tool to find the solution to the system of equations. Enter the
y-value of the solution in the box below.
x+ y+ z = 2
y- 3z = 6
2x - 3y+ z= 6

48 / 6 = x

in this case, x will equal the amount of money in each card!

x therefore will be 8.

trent had $8 in each birthday card.

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5

-8,5

step-by-step explanation: