2 [-3x+2y=8]
6x-2y=-20
-6x + 4y = 16
6x - 2y = -20
2y = -4
y = -2
use the first eq (u can use any) then substitute the value of y
-3x + 2(-2) = 8
-3x -4 = 8
-3x = 12
x = -4
Multiply "7" by each term inside the parentheses.
7(x-20) = 7x-140
answer: 7x-140
Answer:
n = 3
Step-by-step explanation:
<u>Equation: 17.1 = 5.7 * n</u>
<em>Divide both sides by 5.7 to get n by itself.</em>
<u>Step 1: Divide both sides by 5.7</u>
17.1 = 5.7 * n
17.1 <u>/ 5.7</u> = 5.7 * n <u>/ 5.7</u>
divide divide
<em>3 = n</em>
Answer: n = 3
Answer:
<u>Option A:</u>
Explanation:
The revenue, R(x) is the product of the number of teams who entered the tournament, T(x), times the entry fee paid by each team, F(x); then you can write:
Thus you must multiply the two functions (polynomials):
Use distributive property:
Simplify:
Add like terms:
All you have to do is divide 61,640 by 8
61640/8=7705
There are, on average, 7,705 electric guitars sold in Alaska each year.
