use the row operations tool to solve the following system of equations, obtaining the solutions in fraction form.
12x + 2y + z = 4
3x + 3y - 4z = 5
2x - 2y + 4z = 1
give the values for x, y, and z with the fractions reduced to lowest terms (for example 4/7 rather than 8/14).
x =
y =
z =

Step-by-step explanation:

We start by putting our equation in a matricial form:

Then, we multiply the second row by 4 and substract the first row:

Now, multiply the third row by 6 and substract the first row:

Next, we will add times the second row to the third row:

Now we can solve to obtain

Then wich implies that

Finally

.

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

true

step-by-step explanation: