The answer would be 2.9 (rounded to the tenth)
Answer:
set middle number=x
then left side number=x-1
and right side number=x+1
(x-1)+x+(x+1)=30
3x=30
x=10
x-1=9
x+1=11
numbers are 9,10,11
Answer:
a
Step-by-step explanation:
Answer:

General Formulas and Concepts:
<u>Pre-Alg</u>
Step-by-step explanation:
<u>Step 1: Define equation</u>
rt - 2n = y
<u>Step 2: Solve for </u><em><u>t</u></em>
- Add 2n to both sides: rt = y + 2n
- Divide both sides by r: t = (y + 2n)/r