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pshichka [43]
4 years ago
11

Solve forn: -6(n-8) = 4(12-5n)+14n

Mathematics
2 answers:
Dominik [7]4 years ago
6 0

\huge\text{Hey there!}

\huge\text{-6(n - 8) = 4(12 - 5n)}

\huge\text{First, \bf{distribute}}\text{ the terms}

Formula is: a ( b + c) = a(b) + a(c) = ab + ac  

\huge\text{First set}\downarrow

\text{-6(n - 8)}\\\text{-6(n) - 6(-8)}\\\text{-6(n) = -6n}\\\text{-6(-8) = 48}\\\boxed{\text{Result for the left side:-6n +48}}

\huge\text{Second set}\downarrow

\text{4(12-n)}\\\text{4(12 - 5n)}\\\text{4(12)-4(-5n)}\\\text{4(12) = 48}\\\text{4(-5n) = -20n}\\\boxed{\text{Result for the right side 48 + (-20)}}

\text{We get:-6n +48 +20n=-20n+ 48+ 20n}

→ = 14n+48 = 48

\huge\text{Now, you have to SUBTRACT by 48 on your}\\\huge\text{sides.}

\text{14n + 48 \bf{ - 48}}\text{ = 48 - \bf{48}}

\text{Cancel out the second: 48 - 48 because it equals 0}

\text{Keep the first one because it helps us solve for our answer}

\text{14n = 0}\\\text{Divide both sides by the number \bf{14}}

\dfrac{\text{14n}}{14} = \dfrac{0}{14}\\\\\text{Cancel out}\dfrac{\text{14n}}{14}\text{ because it equals to one and we don't need it for this problem}\\\\\\\text{Keep: }\dfrac{0}{14}\text{ because it helps us solve for our answer.}

\dfrac{0}{14}=0\div14 = 0\\\\\boxed{\boxed{\text{Answer: \bf{ n = 0}}}}\checkmark

\text{Good luck on your assignment and enjoy your day!}

~\frak{LoveYourselfFirst:)}

Irina-Kira [14]4 years ago
5 0

Answer:

0

Step-by-step explanation:

-6(n-8) = 4(12-5n)+14n

-6(n-8)=-6n+48 =  4(12-5n)+14n= 48-20n+14n

then 48-20n+14n<em> = 48-6n</em>

so you have

-6n+48 = <em>48-6n</em>

-6n+6n= n

n+48=48

n-48=48-48

n=0

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A hummingbird can travel up to 15 meters per second what is the hummingbirds speed in miles per hour
dexar [7]
I think it's 240 mile per hour

60sec.= 1min

60min.=1hour

60×60=3600secs.

3600÷15=240
5 0
4 years ago
The height of an object off the ground, h (in feet) t seconds after it is launched into the air is given by
creativ13 [48]

The average rate of change of h over the interval is -48 feet per second.

Given,

The height of an object off the ground, h (in feet) t seconds after it is launched into the air is given by

h(t) = −16t2 + 96t, 0 ≤ t ≤ 6.

We need to find the average rate of change of h over the interval [3, 6].

<h3>How do we find the average rate of change of a function over an interval?</h3>

If we have an interval [a, b] and a function f(x).

The rate of change is given by:

= f(b) - f(a) / b - a

We have,

h(t) = −16t² + 96t and [3, 6].

h(6) = -16 x 6² + 96 x 6 = -576 + 576 = 0

h(3) =  -16 x 3² + 96 x 3 = -144 + 288 = 144

The average rate of change of h is:

= h(6) - h(3) / 6 - 3

= 0 - 144 / 3

= -144 / 3

= -48

Thus the average rate of change of h over the interval is -48 feet per second.

Learn more about the average rate of change here:

brainly.com/question/23780823

#SPJ1

3 0
1 year ago
A catalog of scientific equipment states that the lens of a particular telescope has a circumference of 6.28 yards. What is the
nexus9112 [7]

The area of lens is 3.14 square yards.

Step-by-step explanation:

Given,

Circumference of lens = 6.28 yards

Circumference = 2πr

6.28=2*3.14*r\\6.28=6.28r\\6.28r=6.28

Dividing both sides by 6.28

\frac{6.28r}{6.28}=\frac{6.28}{6.28}\\r=1

Area of lens = πr²

Area of lens = 3.14*(1)^2=3.14*1

Area of lens = 3.14 square yards

The area of lens is 3.14 square yards.

Keywords: area, circumference

Learn more about area at:

  • brainly.com/question/10414011
  • brainly.com/question/10483199

#LearnwithBrainly

7 0
3 years ago
Find x. Round your answer to the nearest tenth of a degree.
viktelen [127]

Answer: x=52.6°

Step-by-step explanation:

To find the value of x, we have to use our SOHCAHTOA. We can eliminate sine and cosine because both uses hypotenuse, which is not labelled. Therefore, we use tangent.

tan(x)=\frac{17}{13}

To find x, we want to use inverse tangent.

x=tan^{-1}(\frac{17}{13} )      [plug into calculator]

x=52.6

Now, we know that x=52.6°.

3 0
3 years ago
Please help!!!!!!!!​
kolbaska11 [484]

Answer:

1 \frac{14}{15}

Step-by-step explanation:

Given

\frac{4}{5} × 2 \frac{5}{12} ← change the mixed number to an improper fraction

= \frac{4}{5} × \frac{29}{12} ( cancel 4 and 12 by 4 )

= \frac{1}{5} × \frac{29}{3}

= \frac{29}{15}

= 1 \frac{14}{15}

8 0
3 years ago
Read 2 more answers
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