Tre determines the solution to the equation 3.57x + 1.61 = 2.63x is x = 0.5. He verifies his solution using the steps below. Step 1. 3.57(0.5) + 1.61 = 4.71 - 2.63(0.5)
Step 2. 1.785 + 1.61 = 4.71 - 1.315
Step 3. 3.395 = 6.025
Which statement most accurately describes Tre's Error
A. Tre made an error when determining the original solution of x = 0.5
B. Tre made an error when substituting the solution in for x.
C. Tre made an error when multiplying each coefficient by 0.5
D. Tre made an error when adding or subtracting.

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.

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)