All categories

3 years ago

Solve this question 4-6n=8(n+7) do the distribute property

Mathematics

1 answer:

Molodets [167]3 years ago

6 0

Answer:

n=3 5/7

Step-by-step explanation:

8(n+7) Multiply each term in the parenthesis by 8

8n + 8 x 7

8n + 56

4 - 6n = 8n + 56

move variable to the left by adding its opposite to both sides

-6n - 8n + 4 = 8n - 8n +56

eliminate the opposites

-6n - 8n + 4 = 56

collect like terms by calculating the sum or difference of their coefficients

-6n - 8n

(-6 - 8)n

calculate the difference

-14n

divide both sides of the equation by -14

-14n / (-14) = 52 / (-14)

n = 52 / (-14)

n = -52/14

n= -26/7

alternative form of writing the answer is

n= -3 5/7 or n= 3.71429

You might be interested in

Factor the expression.

grigory [225]

Hey!

First, let's write the problem,
$4r^2-64$
Factor out the common term, which is 4,
$=4\left(r^2-16\right)$
Then, let's factor this part: $r^2-16$
We are going to factor it using the difference of squares rule.
$=\left(r+4\right)\left(r-4\right)$
Our final factored answer would be,
$=4\left(r+4\right)\left(r-4\right)$

Thanks!
-TetraFish

8 0

3 years ago

Read 2 more answers

Ron's factory is currently producing 30 chairs in a day. how many chairs will be produced if production is to be increased by 13

Anika [276]

Your answer is 39 chairs per day.

$\frac { 130 }{ 100 } \cdot 30\\ \\ =\frac { 3900 }{ 100 } \\ \\ =\frac { 39\cdot 100 }{ 100 } \\ \\ =39$

5 0

3 years ago

Read 2 more answers

Write (8,3)m=-7 in point slope and slope intercept form

Lerok [7]

Answer:

The slope intercept form is y=-7x+59

Step-by-step explanation:

y-y=m(x-x1)

y-3=-7(x-8)

y-3=-7x+56

+3 +3

y=-7x+59

8 0

3 years ago

A radar gun was used to record the speed of a swimmer (in meters per second) during selected times in the first 2 seconds of a r

Natalka [10]

Trapezoidal is involving averageing the heights
the 4 intervals are
[0,4] and [4,7.2] and [7.2,8.6] and [8.6,9]

the area of each trapezoid is (v(t1)+v(t2))/2 times width

for the first interval
the average between 0 and 0.4 is 0.2
the width is 4
4(0.2)=0.8

2nd
average between 0.4 and 1 is 0.7
width is 3.2
3.2 times 0.7=2.24

3rd
average betwen 1.0 and 1.5 is 1.25
width is 1.4
1.4 times 1.25=1.75

4th
average betwen 1.5 and 2 is 1.75
width is 0.4
0.4 times 1.74=0.7

add them all up
0.8+2.24+1.75+0.7=5.49

5.49
t=time
v(t)=speed
so the area under the curve is distance
covered 5.49 meters

8 0

3 years ago

How much is 0.97 to 0.465?

RoseWind [281]

It is a decrease by .505

3 0

3 years ago