3 years ago

Lloyd solves the equation 24x + 18(x – 2) = 216 for x. Some of his steps are shown.

Mathematics

1 answer:

ANTONII [103]3 years ago

4 0

Answer:

24+18x-36=216

-12+18x=216

18x=216+12

18x=228

x=228/18

x=30/3

Step-by-step explanation:

You might be interested in

If r=0.5 and a6=0.03125 what is the value of a1?

andre [41]

I guess this is a geometric series:

a6 = a1 * r^5 so

a1 = 0.03125 / 0.5^5

= 1 answer

5 0

2 years ago

Read 2 more answers

What is the surface area of this rectangular prism?

morpeh [17]

All of the surfaces are rectangular

7 0

2 years ago

Read 2 more answers

What is an equivalent expression for 3(x-12)? * O 3x-12 3x+12 O 3x-36 3x+36

Doss [256]

The correct answer is
3x - 36

7 0

2 years ago

Read 2 more answers

Please help with this Math Question...

Nataly [62]

Answer: A

Step-by-step explanation:

f(x) = x³ + 4x² + 7x + 6

possible rational roots are ±{1, 2, 3, 6}

Try x = -2

-2 | 1 4 7 6

| ↓ -2 -4 -6

1 2 3 0 ← remainder is 0 so x = -2 is a root ⇒ (x + 2) = 0

The factored polynomial x² + 2x + 3 = 0 is not factorable so use the quadratic formula to find the roots.

a=1, b=2, c=3

$x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}$

$x=\dfrac{-(2)\pm\sqrt{(2)^2-4(1)(3)} }{2(1)}$

$x=\dfrac{-2\pm\sqrt{4-12} }{2}$

$x=\dfrac{-2\pm\sqrt{-8} }{2}$

$x=\dfrac{-2\pm2i\sqrt{2}}{2}$

$x = -1 \pm i\sqrt{2}$

$x = -1 + i\sqrt{2}$ $x = -1 - i\sqrt{2}$

$x - (-1 + i\sqrt{2})=0$ $x - (-1 - i\sqrt{2})=0$

The factors are:

$(x - 2)[x - (-1 + i\sqrt{2})][x - (-1 - i\sqrt{2})]$

5 0

2 years ago

Twelve diminished by six times a number

Vilka [71]

Twelve diminished by six times a number

12 - 6x

3 0

3 years ago