Answer:
n=6
Step-by-step explanation:
13.5n + 8 = 89
13.5n = 89 - 8
13.5n = 81
13.5n/13.5 = 81/13.5
n = 6
I hope this helps
2/3 is greater than 3/5 because if you cross multiply, you'll get 10 on left side and 9 on the right, which means 3/5 is less than 2/3.
Answer:



Step-by-step explanation:
From the question we are told that
The grade is 
The variation is 
Generally the absolute value equation is mathematically represented as

=> 
So


And

=> 
<u>Answer:</u>
x = 20; ∠5 = 120°
<u>Step-by-step explanation:</u>
∠1 and ∠8 are alternate angles and therefore are equal, which means that if m ∠1 = (4x + 40)° and m ∠8 = (2x + 80)°, then 4x + 40 = 2x + 80
Solve for x:
4x + 40 = 2x + 80
2x = 40
x = 20
∠5 is corresponding to ∠1 and vertical to ∠8, therefore equal to both; To find it's measure:
Plug x into either ∠1 or ∠8's respective equations:
2x + 80
2(20) + 80
120
∠5 is 120°