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3 years ago

What Is the answer?

x < 14" alt="6x + 2 + 6x < 14" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

timofeeve [1]3 years ago

5 0

6x+2+6x<14

add 6x+6x

12x+2<14

subtract 2 from both sides

12x<12

divide by 12

x<1

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Can anyone please help me with this???

ira [324]

Answer:

x=8a

Step-by-step explanation:

(3/a) x - 4 = 20

add 4 to both sides

(3/a) x = 24

Divide by 3/a

x = 24 / (3/a)

Use KCF (keep change flip)

x = (24/1) x (a/3)

x = 24a / 3

simplify

x = 8a

3 0

3 years ago

Yolanda is buying supplies for school. She buys n packages of pencils at $1.10 per package and m pads of paper at $2.30 each. Wh

Nikitich [7]

The first answer is C
The second answer is C
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Hope this helps!

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3 years ago

What is greater 1/4 or 0.4?

Alik [6]

1/4 in decimal form is 0.25, so 0.4 is definitely greater.

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3 years ago

A thermometer is taken from an inside room to the outside, where the air temperature is 20° f. after 1 minute the thermometer re

fomenos

The change in the temperature is proportional to the difference in temperatures. Let's call the initial temperature of the room and the thermometer $E_0$ and the current temperature $E(t)$ where $t$ is the elapsed time in minutes. The outside temperature is 20 F.

Newton's Law of Cooling:

$E(t) - 20 = (E_0 - 20) e^{- k t}$

We're given $E(1)=70 \textrm{ and } E(5)=45$

$70-20 = (E_0 - 20) e^{-k}$

$45-20 =(E_0 - 20) e^{-5k}$

Dividing,

$\dfrac{50}{25}=e^{4k}$

$k = \dfrac 1 4 \ln 2$

Now,

$E(t) - 20 = (E_0 - 20) e^{- k t}$

$E_0 = 20 + (E(t) - 20)e^{k t}$

$E_0 = 20 + (E(1) - 20)e^{k}$

$E_0 = 20 + (70 - 20)e^{\ln 2/4}$

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4 years ago

How do you Factor this problem 24x^3+4x^2-4x

adoni [48]

Factor out 4x first

4x(6x² + x - 1)

factor the rest as normal, knowing that what adds to give the middle term multiplies to give the last term.

4x(2x + 1)(3x - 1)

4 0

3 years ago

Read 2 more answers