.
0.85*x = 51 ====> x = .
Use your calculator.
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On percentage, see the lessons
- Percentage problems
- Percentage word problems (Type 1 problems, Finding the Part)
- Percentage word problems (Type 2 problems, Finding the Rate)
- Percentage word problems (Type 3 problems, Finding the Base)
- More complicated percentage problems
- Problems on percentage that lead to unexpected results
in this site.
They are written specially for you.
Read them and become an expert in this area.
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It is just SECOND problem of this type posted to the forum today.
The first one was at this link
https://www.algebra.com/algebra/homework/percentage/percentage.faq.question.1120119.html
Please do not post same type problems again.
Thank you.