This process is very simple. All you are doing is creating a table of values somewhere to help you graph this function. As you can see, the coordinates of ![\displaystyle [-6, -2], [1, -1], [2, 0], [3, 1],](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5B-6%2C%20-2%5D%2C%20%5B1%2C%20-1%5D%2C%20%5B2%2C%200%5D%2C%20%5B3%2C%201%5D%2C)
and ![[10, 2]](https://tex.z-dn.net/?f=%5B10%2C%202%5D)
are all touched on this graph, letting you know that this information is accurate.
I am joyous to assist you at any time. ☺️
<span>Solve the system
9x = 27-9y
20x=71-9y
Let's use the "elimination through addition/subtraction method.
Multiply the first equation by -1 so as to obtain +9y:
-9x = -27 + 9y
</span><span>20x= 71- 9y
--------------------
Add these 2 equations together:
</span>-9x = -27 + 9y
20x= 71- 9y
--------------------
<span> 11x = 44
Solve this for x: x = 44/11 = 4.
Now find y by subst. 4 for x in either of the original equations.
Using the second equation: </span><span>
</span>20x=71-9y
20(4) = 71 - 9y
80-71 = -9y
9 = -9y. Then y = -1.
The solution set is (4,-1).
Answer:
a. <u>saletax</u><u> </u>= 98.75
100
<u>5</u><u> </u> = <u> </u><u>9</u><u>8</u><u>.</u><u>7</u><u>5</u>
100 1
we cross multiple
5(1) = 100(98.75)
5 = 100(98.75)
<u> </u><u> </u>divide both side by 5
<u>5</u><u> </u><u> </u>= <u> </u><u>1</u><u>0</u><u>0</u><u>(</u><u>9</u><u>8</u><u>.</u><u>7</u><u>5</u><u>)</u>
5 5
since 100 can divide 5 so we divide them
= 20(98.75)
amount sale tax = 1975
b. 98.75 × 5 =493.75$
Answer:
sorry I dont know
Step-by-step explanation:
I do not know
Answer:
c
Step-by-step explanation:
