I think the answer its 1.8 percent because if you subtract 15-13.2 comes out to be 1.8.
The answer is 87. Feel free to ask questions :)
Use a property of proportions that states that their reciprocals are equal if the two ratios are equal you get
x : 1
Answer:
x = 9
Step-by-step explanation:
since the terms are in AP then there is a common difference between consecutive terms, that is
a₂ - a₁ = a₃ - a₂ ( substitute values )
x - 7 = 11 - x ( add x to both sides )
2x - 7 = 11 ( add 7 to both sides )
2x = 18 ( divide both sides by 2 )
x = 9