Answer:
5P5×20P15
Step-by-step explanation:
A school bus has 25 seats, with 5 rows of 5 seats.
15 students from the first grade and 5 students from the second grade travel in the bus.
second-grade students occupy the first row.
The 5 students of second grade are to be seated in 5 seats,this can be done in:
5P5 ways where P is the permutation
Now 15 students from first grade are to be arranged in remaining 20 seats
This can be done in:
20P15 ways
Hence, total ways student can be seated is:
5P5×20P15
Plot these points
vertex: (-4,-7)
x intercepts: (-5.5,0), (-2.5, 0)
and those two other points
the graph should look something like this:
Answer: 4x+y=567, x+y=279, where x=96 and y=183. X represents the large bags and y the small bags
Explanation: We know that our two totals are 279 and 567, so they will be on their own sides of the equation.
The number of large bags (x) plus the number of small bags (y) equals 279 bags in total.
As it relates to price, the price of the large bags (4x) plus the price of the small (y) gives us $567.
30:45
6:9
10:15
I believe that’s it,
hope this helps
