Answer:
s=25
Step-by-step explanation:
8(5s-13)-16(2s+6)=0
40s-104-32s-96=0
40s-32s-104-96=0
8s-104-96=0
8s-200=0
8s=0+200
8s=200
s=200/8
s=25
1: Assuming this line is linear, the first thing to do is find the slope.
The slope formula is
![m=\frac{ y_{2} - y_{1} }{ x_{2} - x_{1} }](https://tex.z-dn.net/?f=%20m%3D%5Cfrac%7B%20y_%7B2%7D%20-%20y_%7B1%7D%20%7D%7B%20x_%7B2%7D%20-%20x_%7B1%7D%20%7D%20)
, so in this case, it is
![m=\frac{ (-7) - (-9) }{ 2 - (-5) }](https://tex.z-dn.net/?f=%20m%3D%5Cfrac%7B%20%28-7%29%20-%20%28-9%29%20%7D%7B%202%20-%20%28-5%29%20%7D%20)
, which comes to
![\frac{2}{7}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B7%7D%20)
. Then, use your slope and one of the points given to write the point-slope formula of the linear equation, and then written in standard form:
y=
![\frac{2}{7}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B7%7D%20)
x-
![\frac{53}{7}](https://tex.z-dn.net/?f=%20%5Cfrac%7B53%7D%7B7%7D%20)
.
2. Use the same process as in question 1 to find:
y=-7x+11
Answer:
Step-by-step explanation:
Area = 0.5(base)(height)
= 0.5(16.9)(10.4)
= 87.88 sq ft
Answer:$6.21
Step-by-step explanation:
57.93 - (4 X 7.99)
= $33.96
$33.96 - $18.50
= $15.46
![\frac{15.46}{2.49}](https://tex.z-dn.net/?f=%5Cfrac%7B15.46%7D%7B2.49%7D)
= $6.2088
=$6.21
Answer:
Sum is addition.
That's multiplication
Bcz im so nice, i'll put both answers
71904 = multiplication
845 = addition