Answer:
x = 9/25, y = 7/25, z = 4/25
Explanation:
step 1: solve for y in first equation to use substitution
y = -2x + 1
step 2: insert into second equation to eliminate y variable and work with two variables
3(-2x+1) + z = 1 (now distribute)
-6x + 3 + z = 1 (bring over the -3)
-6x + z = -2
step 3: now left with -6x + z = -2 and x + 4z = 1, so eliminate z
-6x + z = -2 (multiply by 4)
4(-6x + z = -2)
-24x + 4z = -8
-
x + 4z = 1 (brought down third equation)
-25x = -9
x = 9/25
then just plug in x into the third equation to solve for z, followed by plugging it into the first equation to solve for y. you should end with y = 7/25 and z = 4/25
Answer:
<h3>33.3%</h3>
Explanation:
profit percent = Sp-Cp/Cp * 100%
Sp is the selling price
Cp is the cost price
Let the selling price of the article be x
If it is sold with a profit of 25% of selling price, then;
Profit = 0.25x
Since Profit = Sp - Cp
0.25x = x - Cp
Cp = x - 0.25x
Cp = 0.75x
Substitute into the formula
Profit percent = 0.25x/0.75x * 100
Profit percent = 0.25/0.75 * 100
Profit percent = 1/3 * 100
Profit percent = 33.3%
Hence the profit percent is 33.3%
Answer:
I think its to eliminate inequalities of class and gender
Explanation:
I think tho!! :)
Coming from a kid who does virtual learning, I can truly say I’m slowly losing brain cells.
