Asked by K
In a cupboard there are pencils, rulers and books. The number of pencils is 15 more than that of rulers. The number of books is three time that of rulers. If the number of pencils is p, which one the total number of items in the cupboard?
Answers
Answered by
tyger2020
p = 15 + r where p = pencils and r = rulers.
b = 3r where b = books
total number of items = p + b + r =
15 + r + 3r + r =
15 + 5r.
p - 15 + 3(p-15) + p is how you express in terms of p.
p - 15 + 3p - 45 + p =
5p - 60 is the total in terms of p.
b = 3r where b = books
total number of items = p + b + r =
15 + r + 3r + r =
15 + 5r.
p - 15 + 3(p-15) + p is how you express in terms of p.
p - 15 + 3p - 45 + p =
5p - 60 is the total in terms of p.