Answer:
Each minute Seung fills one less bag than Razi.
Step-by-step explanation:
Find the rate of change.
<u>Razi's rate of change:</u>
![\dfrac{y(b)-y(a)}{b-a}\\ \\=\dfrac{y(2)-y(1)}{2-1}\\ \\=\dfrac{44-48}{2-1}\\ \\=\dfrac{-4}{1}\\ \\=-4](https://tex.z-dn.net/?f=%5Cdfrac%7By%28b%29-y%28a%29%7D%7Bb-a%7D%5C%5C%20%5C%5C%3D%5Cdfrac%7By%282%29-y%281%29%7D%7B2-1%7D%5C%5C%20%5C%5C%3D%5Cdfrac%7B44-48%7D%7B2-1%7D%5C%5C%20%5C%5C%3D%5Cdfrac%7B-4%7D%7B1%7D%5C%5C%20%5C%5C%3D-4)
<u>Seung's rate of change:</u>
![\dfrac{y(b)-y(a)}{b-a}\\ \\=\dfrac{y(4)-y(3)}{4-3}\\ \\=\dfrac{31-34}{4-3}\\ \\=\dfrac{-3}{1}\\ \\=-3](https://tex.z-dn.net/?f=%5Cdfrac%7By%28b%29-y%28a%29%7D%7Bb-a%7D%5C%5C%20%5C%5C%3D%5Cdfrac%7By%284%29-y%283%29%7D%7B4-3%7D%5C%5C%20%5C%5C%3D%5Cdfrac%7B31-34%7D%7B4-3%7D%5C%5C%20%5C%5C%3D%5Cdfrac%7B-3%7D%7B1%7D%5C%5C%20%5C%5C%3D-3)
This means Razi packs 4 bags per minute, Seung packs 3 bags per minute.
<u>Difference</u> = 4 - 3 = 1 bag
Each minute Seung fills one less bag than Razi.
-2y +5 < 9
-2y < 9 - 5
-2y < 4
y < 4/2
y < 2.
Answer: 160 chicken sandwiches were sold.
To convert a percentage into a decimal, move the decimal two places back.
40%=0.40, or 0.4
This means that 0.4 is still equivalent to 40%
Remember that "of" means multiplication.
So 0.4*400=160
160 chicken sandwiches were sold
By decomposing the figure in simpler shapes, we will see that the total area is:
a = 180 cm²
<h3>
How to find the area of the composite figure?</h3>
Remember that the area of a rectangle of width W and length L is:
A = L*W
And the area of a triangle with base B and height H is:
A = B*H/2.
Then, the upper part can be seen as a rectangle of length of 6cm and width of 6 cm, with two triangles on the sides, such that each triangle has a base of 3cm and a height of 6cm.
So the area of that part is:
A = 6cm*6cm + 2*(3cm*6cm/2) = 54cm²
Now, the bottom triangle has a base of 12 cm, and a height of:
15cm - 6cm = 9cm
Then its area is:
A' = 12cm*9cm/2 = 54cm²
This means that the total area of the figure is:
total area = 54cm² + 54cm² = 108cm²
If you want to learn more about area:
brainly.com/question/24487155
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Answer:
7.. option a is right
............................ .. sorry mate I also so busy so that. I can't all ur questions