there are 21000 seats in a stadium, the seats are divided into blocks of either 450 or 400 seats, there are three times as many 450 blocks of seats as there 400, how many blocks of seats are there?
Answers
Answer:
Let the x-blocks have 400 seats Then 3х-blocks for 450 seats 400∗x+450∗3x=21000400x+1350x=210001750x=21000x=12400*x+450*3x=21000\ 400x+1350x=21000\ ...
Answer:
In a school, two exams are set.
The mark out of 100 for the Term 1 exam is added to twice the mark out of 100 for the Term 3 exam.
The students must get at least 150 marks to achieve a pass grade.
A student obtains x marks in the Term 1 exam.
a)Write an appropriate inequality to show the mark,y, that the student must obtain in the Term 3 exam in order to pass.
b) Solve this inequality for y when:
i) x=35
ii) x=49
2. A large stadium has 21000 seats
The seats are organised in blocks of either 400 or 450 seats.
There are three times more blocks of 450 seats than blocks of 400 seats.
How many blocks of seats are there? (of each type: 400 and 450)