Second-year 69854

There are p first-year students in the school. There are 18% fewer sophomores than first-year students. There are 7 more third graders than sophomores and twice as many fourth graders as first- and second-year students combined. Express the number of pupils in the 1st grade.

Correct answer:

x = 6.28p + 7

Step-by-step explanation:

r=100%18%=110018=0.82  x = p + r p + (7+r p) + 2 (p+r p)  k=1+r 1+r 1+2 (1+r 1)=1+0.82 1+0.82 1+2 (1+0.82 1)=25157=6257=6.28 x= k p+7 x=6.28p+7



Did you find an error or inaccuracy? Feel free to write us. Thank you!










Tips for related online calculators
Our percentage calculator will help you quickly calculate various typical tasks with percentages.

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: