Answer:
m∠1 = 100°
Step-by-step explanation:
The system of equation which represent the scenario is;
x + y = 42
x + y = 420.13x + 0.18y = 6.66
<h3>Simultaneous equation</h3>
let
- number of 13 cent stamps = x
- number of 18 cent stamps = y
- Total cost of the stamps = $6.66
- Total number of stamps = 42
x + y = 42
x + y = 420.13x + 0.18y = 6.66
Therefore, the equation which represent the problem is;
x + y = 42
0.13x + 0.18y = 6.66
Learn more about simultaneous equation:
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Answer:
No.
Step-by-step explanation:
If they are proportional, they equal each other.
We can use a proportion.
200/40 = 242/44
Simplify.
5 = 5.5
So they are not proportional.
Answer:
The answer to your question is -3 and 2
Step-by-step explanation:
If an equation is factored, to find the roots, just equal each term to zero.
(x + 3)(x - 2) = 0
Equal each term to zero
x₁ + 3 = 0 x₂ - 2 = 0
Solve for x
x₁ = -3 x₂ = 2
The solutions to this quadratic equation are -3 and 2.
