rachel breaks up a large array into two smaller arrays. the two smaller arrays show 3 times five and 4 times 5. what was the large array that rachel started with?

So the bigger array is 12 and 25

Step-by-step explanation:

Let's do a multiplication of this array first and Know it's result.

3 times five and 4 times 5. = (3*5) and (4*5)

= 15 and 20

Multiplying further gives us

= 15 * 20=300.

So to combine to get the bigger array.

We must get back 300 as the result of our product.

Let's multiply the row (x) with the row (x)

And the column (y) with column (y)

3 times five and 4 times 5. = 3*4 and 5*5

So the bigger array is 12 and 25

To check.

12*25 = 300

Proved.