The table can be used to determine the solution of equations, 2x - 2y = 6 and 4x + 4y = 28.
original
system
equivalent
system
sum of
equations in
equivalent
system
solution
to
system
new
system
using sum
solution to
new
system
4x + 4y = 28
2x-2y = 6
4x+4y = 28
4x - 4y = 12
4x+4y= 28
8x = 40
8x = 40
which solution can be used to fill in both blanks in the table?
(2,5)
(5,2)
(5, -8)
(-8,5)

i believe the correct answer is b.

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

sites:

b

step-by-step explanation: