Question
There are 120 seats in the cinema. Eighth grades come with the same number of students. If three grades come, there will be 54 free seats left. How many seats will be left if four grades come? Can you solve the problem in the form of a proportion or ratio?
155
likes777 views
Answer to a math question There are 120 seats in the cinema. Eighth grades come with the same number of students. If three grades come, there will be 54 free seats left. How many seats will be left if four grades come? Can you solve the problem in the form of a proportion or ratio?
Andrea
4.581 Answers
Ako u dvoranu dolaze tri razredna odjela i ostaje 54 slobodna mjesta, to znači da dolazi 3x x
Broj zauzetih mjesta s tri razreda:
120 - 54 = 66
Dakle:
3x = 66 \Rightarrow x = \frac{66}{3} = 22
Broj učenika u jednom razredu je22
Ako dolaze četiri razreda to znači da dolazi4 \times 22 = 88
Broj slobodnih mjesta s četiri razreda:
120 - 88 = 32
Dakle, ostat će32
Broj zauzetih mjesta s tri razreda:
Dakle:
Broj učenika u jednom razredu je
Ako dolaze četiri razreda to znači da dolazi
Broj slobodnih mjesta s četiri razreda:
Dakle, ostat će
Frequently asked questions (FAQs)
What is the formula for calculating the mean (average) of a set of numbers?
+
Question: What is the derivative of the function f(x) = sin(2x) + cos(3x) with respect to x?
+
Math question: Find the limit as x approaches infinity of (3x^2 + 5) / (2x^2 + 1) using L'Hôpital's Rule.
+
New questions in Mathematics