This is the answer to your question
I think it’s 5 I’m not really sure
area = 2x² + 7x - 4
the area (A ) of a rectangle = length × width
A = (2x - 1 )(x + 4 ) ← expand using FOIL
= 2x² + 8x - x - 4 = 2x² + 7x - 4
The weight of 9 bags is 5.4 blocks
<em><u>Solution:</u></em>
Given that,
5 bags weigh the same as 3 blocks
We have to find how many blocks will 9 bags weigh
Let "x" be the weight of 9 bags
Then,
5 bags weigh the same as 3 blocks
9 bags weight the same as "x" blocks
From proportion we can say,
5 : 3 : : 9 : x
Therefore,
Thus the weight of 9 bags is 5.4 blocks
Answer:
That's the worksheet answers