A printer takes 2 and a half seconds to print a flyer. It took 75 secons to print a batch of flyers with out stopeding. How many flayers are in a batch

30 flyers

Step-by-step explanation:

A printer prints:

1 flyer = 2 1/2 seconds = 2.5 seconds

1 batch of flyers = 75 seconds

The number of flyers in a batch is:

2.5 seconds = 1 flyer

75 seconds = x

Cross Multiply

2.5 × x = 75 × 1

x = 75/2.5

x = 30 flyers.

Therefore, the number of flyers in a batch is 30 flyers

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

it would take 7/10 of an hour too fill the pool.

step-by-step explanation: