Answer:
39;45
Step-by-step explanation:
students on the floor;total students
Answer:
3
Step by Step:
Subtract the tip ($6) from the total ($39)
11x=33
Then divide 33 by 11, leaving you with the value of x.
x=3
The lesson was 3 hours long.
<span>6x+7=6
Subtract both sides by 7
</span>6x+7-7=6-7
6x=-1
Divide both sides by 6 to isolate x
6x/6=-1/6
x=-1/6
F(6) = 7(6) - 4
f(6) = 42 - 4
f(6) = 38
Hope this helps!