Answer:
r=3.25
Step-by-step explanation:
Question: 0.5(r+2.75)=3
1) Distribute 0.5 to r and 2.75:
0.5r+1.375=3
2) Subtract 1.375 from both sides:
0.5r=1.625
3) Divide both sides by 0.5:
r=3.25
Footnotes:
1) The Distributive property says a(b+c)=ab+ac
