Given:
An equation in a coincidental system of two linear equations:
2x + 3y = -27
The other equation is
_y = _x - 102
Rearrange the second equation to be identical to the first
_y - _x = -102
Determine the factor, -102/-27 = 3.78
for x, 2 * 3.78 = 7.56
for y, 3 * 3.78 = 11.33
The second equation, 11.33y - 7.56x = -102
Suppose ABC be a triangle such that ∠A = 4x + 7 ,
∠B = 3x + 5 & ∠C = 6x + 12
We know, the sum of interior angles of a Triangle is 180°, therefore, ∠A + ∠B + ∠C = 180°
or, 4x + 7 + 3x + 5 + 6x + 12= 180°
or, 13x = 180 - 24
or, x = 156/ 13 = 12
Answer:
a: $392.28
b: $112.08
Step-by-step explanation:
The decimal form of 40% is 0.4. Multiply 0.4 by 280.20, and you get 112.08
Because it is a markup, you add this 112.08 to your original price, 280.20
280.20+112.08=392.28
Your answer to letter a is $392.28
The rate of the markup is how much was added, so 112.08
1 radian is 57.2958 degrees
pls mark as Brainliest
Answer:
Step-by-step explanation:
first the formula for frequency is f=1/t
some then the answer is f= 1/40
f= 0.025