Answer: x=68/11 and y=-72/11
Steps:
2(x+4y=-20)
2x+8y=-40
2x - 3y = 32
- 2x + 8y = -40
-11y=72
y=-72/11
x + 4(-72/11) = -20
x - 288/11 = -20
x=68/11
Simplifying
4x + 16 + -1x = 22 + 6
Reorder the terms:
16 + 4x + -1x = 22 + 6
Combine like terms: 4x + -1x = 3x
16 + 3x = 22 + 6
Combine like terms: 22 + 6 = 28
16 + 3x = 28
Solving
16 + 3x = 28
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-16' to each side of the equation.
16 + -16 + 3x = 28 + -16
Combine like terms: 16 + -16 = 0
0 + 3x = 28 + -16
3x = 28 + -16
Combine like terms: 28 + -16 = 12
3x = 12
Divide each side by '3'.
x = 4
Simplifying
x = 4
Answer:
Tip = $10.60
Step-by-step explanation:
<u>Step 1: Round to the nearest dollar</u>
$52.56
<em>$53</em>
<em />
<u>Step 2: Find the tip</u>
$53 * %20 is same as $53 * 0.2
<em>$10.60</em>
<em />
Answer: Tip = $10.60
Answer:
Wish I could help!
Step-by-step explanation:
Answer:
12%
Step-by-step explanation:
140/125= 1.12
Now ignore the one that lies before the decimal because technically percentage is based on hundreds so both 125 and 140 are over 12%
