Answer:
x= -4 & y=-12
Step-by-step explanation:
multiply y=3x by 2
giving you 2y=6x
subtracting 2y=x+20 from 2y =6x
=> 5x=-20
dividing through by 5
=> x=-4
put x=-4 into y=3x
=> y=3(-4)
<em>y</em><em>=</em><em>-12</em>
Answer:

<h3>The rate of change is <u>29/5</u>.</h3>
Answer:
Step-by-step explanation:
Given: 39 = 0.01n
Move the decimal point on each side two places to the right: 3900 = n
Answer:
x=
2
/3
y+2
Step-by-step explanation:
Let's solve for x.
−6x+4y=−12
Step 1: Add -4y to both sides.
−6x+4y+−4y=−12+−4y
−6x=−4y−12
Step 2: Divide both sides by -6.
−6x
/−6
=
−4y−12
/−6
x=
2
/3
y
=x=
2
/3
y+2
<h3><u>
brainliest please?</u></h3>
<u />
Answer:
D. x = √17
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
<u>Trigonometry</u>
- Pythagorean Theorem: a² + b² = c²
Step-by-step explanation:
<u>Step 1: Define</u>
leg <em>a</em> = 4
leg <em>b</em> = 1
hypotenuse <em>c</em> = <em>x</em>
<em />
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute: 4² + 1² = x²
- Exponents: 16 + 1 = x²
- Add: 17 = x²
- Isolate <em>x</em>: √17 = x
- Rewrite: x = √17