Answer:
2×3=6
or 6×5=30
Step-by-step explanation:
Theres a lot!
To get the amount you need to subtract from 840, just turn 5% into a decimal, which is 0.05, then just multiply 0.05 by 840 and subtract that number from 840
Answer: 15/7 2 1/7
Step-by-step explanation: First divide 8x-3=x+12 Then add 3 to both sides.
8x=x+15 Subtract x from both sides. 7x=15 Then divide again so 7/7 and 15/7. If you simplify it become 2 1/7
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