Cesar arranges 12 notecards into rows of 6 for his presentation. draw an array to represent the problem.

An array is a model to represent multiplication and division problems by using rows and columns.

In which, rows show the number of groups and columns show the number in each group or the size of each group,

Here, we have to arrange 12 note cards into 6 rows,

Thus, 2 note cards in each row and number of rows are 6,

( shown in the below diagram )

idk the answer but just put a

step-by-step explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: