Step-by-step explanation:
Given:
The solution of the system of equation is (-2 ,2).
<h3>What is a System of Equation ?</h3>
A system of equation is defined as the equation that have a common solution.
The system of equation is
x+y = 0
y = 2x+6
2x-y = -6
3x = -6
x = -2
y = 2
The graph of both the equations are plotted and the common point is the solution of the equations.
The solution of the system of equation is (-2 ,2).
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Sorry I don’t know what the answer is
Answer:
26.13716694
Step-by-step explanation:
the area of a semi cirlce is 1/2(π*r^2) so it was 14.13716694 and then you find the area of the triangle witch is H*B/2 and then add them 3 numbers together whitch is 6+6+14.13716694=26.13716694
Answer:
70x + 490 = 40x +670
Step-by-step explanation:
Let's start with Tom's equation. So we'll start with y=mx+b. b is the amount Tom has started with(aka $490), m is the gain(aka how much money is he getting that month? it's $70) and x is month, plug in the values and you'll get:
y = 70x + 490
Okay do the same thing for Tammy, just change the values accordingly:
y = 40x + 670
Now when are they going to have the same amount of money? This will be the equation to show when they will have the same amount of money. We'll use equal values method:
70x + 490 = 40x +670
subtract 490 and 40x from both sides
30x = 180
divide both sides by 30
x = 6
So, we know now that in 6 months they will have the same amount of money.