Answer:
<h2>The easiest to solve for is x in the first equation</h2>
Step-by-step explanation:
Given the system of equation, x + 4 y = 14. and 3 x + 2 y = 12, to solve for x, we can use the elimination method of solving simultaneous equation. We need to get y first.
x + 4 y = 14............ 1 * 3
3 x + 2 y = 12 ............ 2 * 1
Lets eliminate x first. Multiply equation 1 by 3 and subtract from equation 2.
3x + 12 y = 42.
3 x + 2 y = 12
Taking the diffrence;
12-2y =42 - 12
10y = 30
y = 3
From equation 1, x = 14-4y
x = 14-4(3)
x = 14-12
x = 2
It can be seen that the easiest way to get the value of x is by using the first equation and we are able to do the substitute easily <u>because the variable x has no coefficient in equation 1 compare to equation 2 </u>as such it will be easier to make the substitute for x in the first equation.
B because the sum of 2 sides must be GREATER than the 3rd side
Answer:
8/12 or 66.6%
Step-by-step explanation:
If we have 12 sides to a die then there are 12 possible outcomes, as a result if the dice would have a total of 8 sides that is either 5 or more (5,6,7,8,9,10,11,12,) that means 8/12 of the dice would be a satisfy the outcome we are looking for and 8/12 is around 67%
PEMDAS = Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.
So multiplication first, 56*2= 112
Division second, 5/5=1
Subtraction last, so 112 - 1 = 111
111 is the answer.
Answer:
120
Step-by-step explanation:
i don't know if you still need help, but the answer is x=180-30-30=120 degrees
