Answer:
a=19
Step-by-step explanation:
First we have to distribute the parenthesis; multiply (a+5) by 1/3
8=1/3*a+1/3*5
Now we just solve the equation regularly
8=1/3a+5/3
8-5/3=1/3a
6 1/3=1/3a
8=1/3(a+5)
I do not know if you meant to put the (a=5) in the denominator or in the counter, so I'll try both.
if 8=1/3(a+5) and (a+5) is in the counter, this would get us;
8=(a+5)/3
<=> 8.3 = (a+5) = 24
<=> 24-5 = a = 19
is 8=1/3(a+5) and (a+5) is in the denominator, this would get us;
<=> 3.8.(a+5) = 1 = 24(a+5) = 24a + (5.24)
<=> 1/24 = a+5
<=> 1/24 -5= a
the average is 168
3z
2
20-5 11/12= 9 11/12
we do (3 2/3 + 2 1/4+ 2 1/3 )which is
3 8/12. 2 3/12 2 4/12 (common denominator)
then add 3 8/12 and 2 3/12 and 2 1/3 to get 10 1/12 then we get 20- 10 1/12 to get a final answer of 9 11/12
6-2+4-8 = 4+4-8 = 8-8 = 0
Correct answer just took the quiz
