Question

A student is attempting to evaluate the literal equation below. Which statement best applies to the sample mathematical work shown?

http://media.education2020.com/evresources/2065744_steps.jpg\

A. The student's substitution in step 1 is invalid or incorrect.
B. The simplification performed in step 2 is invalid or incorrect.
C. Raising 4 to the second power in step 3 before multiplying it by 3 is an invalid or incorrect.
D. The mathematical work is correct as written.

Answer 1

@texaschic101

Answer 2

That would be B....it should be x = -4 instead of 4

Answer 3

thanx i'm on a timer right i'm starting to panic

Answer 4

be calm....you can do it :)

Answer 5

thanx

Answer 6

can you help me with2 more i have 5 more minutes @texaschic101

Answer 7

lets see them

Answer 8

ab/a+b=c Given the literal equation , with b = –1 + a, what is the value of c if a = 5?

Answer 9

A.20/9 B.25/9 C.4 D.11

Answer 10

2 minutes left

Answer 11

41 seconds

Answer 12

14 sec

Answer 13

b = -1 + a
b = -1 + 5
b = 4

ab/a + b = c
5(4)/5 + 4 = c
20/5 + 4 = c
4 + 4 = 8

sorry..I got wrong answer

Answer 14

it okay it got automatically submitted thanks for the help. :D

Answer 15

I see what I did....20/(5 + 4) = 20/9
I am sorry about that....

Answer 16

it's fine i just really appreciate that u helped me the best that u could.