87 x 57 = 4959
20000/4959 = 4.033071184
density = 4 fans per yard²
Answer:
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.
The area of the rectangle is 47 1/2
Answer:
a
Step-by-step explanation:
the line model shows 2 halfs of 4/10
5,7,8 they all equal 21, 21 divided by 3 is 7
