The work of a student to solve a set of equations is shown:
2 answers:
<span>If you would like to know in which step did the student first make
an error, you can find this using the following steps:
y = 4 - 2z
4y = 2 - 4z
________________
-4(y) = -4(4 - 2z)
</span>4y = 2 - 4z<span>
________________
-4y = -16 + 8z ... Step 2
</span><span>4y = 2 - 4z</span><span>
________________
0 = -16 + 8z + 2 - 4z</span>
<span>16 - 2 = 4z</span>
<span>14 = 4z</span>
<span>z = 14/4 = 7/2</span>
<span>
The correct result would be: Student made an error in Step 2.</span>
Answer:
Step 2
Step-by-step explanation:
y = 4 - 2z
4y = 2 - 4z
________________
-4(y) = -4(4 - 2z)
4y = 2 - 4z
________________
-4y = -16 + 8z ... Step 2
4y = 2 - 4z
________________
0 = -16 + 8z + 2 - 4z
16 - 2 = 4z
14 = 4z
z = 14/4 = 7/2
You might be interested in
The number pi is a constant, it's the ratio of a circles circumference to it's diameter.
$810 because if you use the simple interest formula (s=p*r*t), you get $810 hope this helped!
Answer:
46
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
Answer:
i think is b sorry if im wrong
