(b) a machine in a food canning factory produces 250 cans every hour. how many cans
would be produced in 25 minutes?
(c) if 14 pens cost $5.60, find the cost of 3 pens.

B ) The number of cans produce in 25 minutes is 104

C) The cost of 3 pens is $1.2

Step-by-step explanation:

Given as :

B) The number of cans produce every hour = 250

Let The number of cans produce in 25 minutes = x

Applying The unitary method

∵ 1 hour = 60 minutes

∵ The number of cans produce in 60 minutes = 250

So, The number of cans produce in 1 minute =

∴ The number of cans produce in 25 minutes = × 25

Or, x = 104.167

Or, x ≈ 104

Hence, The number of cans produce in 25 minutes is 104 . Answer

C) The cost of 14 pens = $5.60

Let The cost of 3 pens = y

Applying unitary method

∵ The cost of 14 pens = $5.60

So, The cost of 1 pen =

∴ The cost of 3 pens =   × 3

i.e y = × 3

Or, y = $1.2

Hence, The cost of 3 pens is $1.2   Answer

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

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.