0.3(n-5)=0.4-0.2n solve for n

Answers

Answer 1

Answer: n=3.8

Step-by-step explanation:

It is long but does a good job of explaining it

Let's solve your equation step-by-step.

0.3(n−5)=0.4−0.2n

Step 1: Simplify both sides of the equation.

0.3(n−5)=0.4−0.2n

(0.3)(n)+(0.3)(−5)=0.4+−0.2n(Distribute)

0.3n+−1.5=0.4+−0.2n

0.3n−1.5=−0.2n+0.4

Step 2: Add 0.2n to both sides.

0.3n−1.5+0.2n=−0.2n+0.4+0.2n

0.5n−1.5=0.4

Step 3: Add 1.5 to both sides.

0.5n−1.5+1.5=0.4+1.5

0.5n=1.9

Step 4: Divide both sides by 0.5.

0.5n

0.5

=

1.9

0.5

n=3.8

Answer 2

Answer:

3.8

Step-by-step explanation:


Related Questions

Decrease 950 by 36%.

Answers

Answer:

342

Step-by-step explanation:

950×0.36=342.....

Answer:

608

Step-by-step explanation:

100-36 =64 which means you want the answer to be 64% of the original value.Find 10% of 950 = 95Mulitply by 6.4 because 10 times 6.4 = 6495 * 6.4 =608

4 and 3/5 equals what percent

Answers

Answer:

460%

Step-by-step explanation:

Amir can run 15 kilometers in one hour. How many kilometers can Amir run per minute?
There are 60 minutes in 1 hour.
Label your answer in km.

Answers

Answer:

0.25km

Step-by-step explanation:

3x * -2y= -100
Solve for y and x.

Answers

Answer:

x=50/3y

y=50/3x

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

R - 27 / 6 = 7
SOLVE FOR R
PLEASE I WILL GIVE THE HIGHER POINTS

Answers

Answer:

R=28.15

Step-by-step explanation:

R-27\6=7

6R-27=7

6R=7+27

6R=34

R=34÷6

R=28.15

Yes I believe the person above me is correct

Are these rational or irrational? Please help ASAP!

Answers

Answer:

√25 is a rational number

√1 is rational number

√7 is irrational number

Step-by-step explanation:

first one is √25

=√25

=√5² ( 25 is the square of 5)

= 5

another one is √1

= √1

=√1² ( 1 is the square of itself)

= 1

last one is √7..... and it is irrational

The delivery fee is $35 plus rental fee of $10 per hour find x the number of hours jasmine parents can rent the snow cone machine and spend $80 or less

Answers

Answer:

They can rent it for 4 hours.

Step-by-step explanation:

35+10x4

Answer:

4 1/2 hours

Step-by-step explanation:

you start with $35 and then add 10 per hour so

10x4=40+5(this 5 comes from the 1/2) =45+35= $80

* just put 4 hours if you cant use a fraction

Lin runs 5 laps around a track in 6 minutes.

How many minutes per lap is that?
How many laps per minute is that?
If Lin runs 21 laps at the same rate, how long does it take her?

Answers

Answer:

1.2 minutes is per lap

0.33 laps per minute

I can only do this much hope it helps.

Quien me ayuda por favor dime gracias

Answers

que esta? i don’t see anything sorry this is confusing

Please help with both and leave a small explanation! I wanna double check my answers!

Answers

Answer:

(1)Hoops shadow would be 6 ft (2) model would be 3 cms

Step-by-step explanation:

9 / 3 = 3   3 x 2 = 6 ft

15 / 5 =3    3 x 1 = 3 cm

what percent is eqilivent to 3/10

Answers

30% because 3/10 equals to 30/100 which is 30%

(-2, 1) and (2, -3)
Slope intercept form

Answers

y=1/2x+2 can i get brainliest

Answer:

y=-1x-1

Step-by-step explanation:

m=y2-y1/x2-x1

(-3)-1=-4

2-(-2)=4

-4/4=(-1)

y=mx+b

-3=-1(2)+b

-1*2=-2

-2-(-2)=0

(-3)-(-2)=(-1)

b=-1

hope this helps :3

if it did pls mark brainliest

Maria's dog weighs 8 times as much as her rabbit. Together they weigh 81 pounds. How much does the dog Weigh?​

Answers

The dog weighs 72 pounds and the rabbit 9 pounds together they are 81
I just plugged in numbers plus the number I multiplied by
So 8 times 9 :72 +9: 81

Stuck on this problem for awhile​

Answers

Answer:B

Step-by-step explanation: 1/3*5=5/3*2/9=10/27

Evaluate each of the following values for the f(×)=[×]:

Answers

It’s um um.......y......e......a.......h. Yeah

Which point is a reflection of Z(5 1/2,3) across the y axis

Answers

Answer: C?

Step-by-step explanation:

Because reflecting means like think of a mirror it’s reflecting you so the opposite side would be the bottom right quadrant please tell me if I’m right?

What is the ratio of 5
footballs to 9 Baseballs

Answers

Answer:

5:9 If that's what you meant

Step-by-step explanation:

Answer:

5:9

Step-by-step explanation:

Ratio is as follows

n1 to n2 = n1:n2

Therefore,

5 footballs to 9 baseballs = 5:9

Hope this helps :)

i need help with this ^

Answers

Answer:

I think it's 3

Step-by-step explanation:

If 2 is c than subtract  it and it's 3?

What is the Pythagorean Theorem?

a.
a2 + b2 = c2
b.
x + y = z
c.
a + b = c
d.
y = mx + b

Answers

Answer:

a squared plus b squared=c squared. The answer is A.

Step-by-step explanation:

Hope I helped!

Please mark Brainliest!!!

Answer:

A. The Pythagorean Theorem is A² + B² = C²

Step-by-step explanation:

I hope that this helps! :)

You go to the movies and buy drinks and popcorn for your friends popcorn cost $3 and drinks cost $2 you spent $31 in total you bought 13 items how many popcorn did you buy and how many drinks did u buy ?

Answers

Answer:

5 popcorn and 8 drinks is the answere

Write the next three terms in each sequence. Make sure your
answers are separated by a comma and a space; like 1, 2, 3

25, 26, 27, 28, ...


Answers

Answer:

29,30,31

this is basically like counting just add 1

7a/9bc divided by 21a/12b

Answers

Answer:

Step-by-step explanation:

I dont know if you meant to punch in a c into the equation but if you didnt mean to i have both answers

The one that contains a c in the fraction that you asked for!

Which ordered pair is a solution to the system of inequalities?
y > 3x
y <2 +5

Answers

The ordered pair which is the solution of the given inequalities is (A) (1,5).

What are inequalities?An inequality in mathematics is a relation that compares two numbers or other mathematical expressions in an unequal way. The majority of the time, size comparisons between two numbers on the number line are made. A difference between two values indicates whether one is smaller, larger, or simply not equal to the other. If a and b are equal, then an is greater than b.

So, to find the correct values we need to use the hit-and-trial method:

Then, taking (1, 5):

y > 3x5 > 3(1)5 > 3 (Satisfied)

Similarly,

5 ≤ x + 55 ≤ 1 + 55 ≤ 6 (Satisfied)

So, option (A) (1, 5) is correct.

Therefore, the ordered pair which is the solution of the given inequalities is (A) (1, 5).

Know more about inequalities here:

https://brainly.com/question/24372553

#SPJ1

Create Write a real-world problem that can be
solved using the equation 9 + 4x = 21 - 2x

Answers

1. you have to subtract 9 from both sides. 21-9= 12
2. you have to add 2x to both sides. 4x+2x= 6x
3. 6x divided by both sides =
4.x=2

The required real-world problem is below that can be solved using the equation.

What is the equation?

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

A construction company is building a new housing development and wants to know how many houses they need to build to reach a certain profit margin. They know that each house costs $9 to build and they want to sell each house for $21.

If they build x number of houses, the equation to calculate their profit is:

21x - (4x + 9) = profit.

To reach a certain profit margin, the company can set that equation equal to a specific value and solve for x.

Learn more about the equation here:

brainly.com/question/10413253

#SPJ5

what is the probability of getting an A and then a 2?

Answers

Answer:

it would techically be a 50/50 chance of getting either an A or a 2

ctice
Select the correct answer.
The weight of a baby every month since birth is indicated by segments A, B, and C on the graph below.
Weight of Baby
25
20
С
Weight (pounds)
15
B
10
А
5
10
2 4 6 8
Age (months)
Select the segments in the correct order from the least to greatest rate of increase in the weight of the baby
B, C, A
A, B, C
C,
BA
С, А, В

Answers

Answer:

C,B,A

Step-by-step explanation:

The segments that would correctly show the sequence of the baby's increase in weight would be as follows:

C). C, B, A

What is a graph?

A graph is characterized as a visual display of a particular set of data for a better understanding of the readers.

As per the given data, the baby's gain of weight would range in descending order i.e. C, B, A.

The weight changed or increased as the baby turned older from 2 to 4 to 6 to 8 months old.

Thus, option C is the correct answer.

Learn more about "Graph" here:

brainly.com/question/14375099

Mr. White can walk 3 miles in 45 minutes. How far can he walk in 1 hour

Answers

Answer:

i hyave no clu

Step-by-step explanation:

abh

Answer:

Mr. White can walk 4 miles in 1 hour.

Step-by-step explanation:

If Mr. White can walk 3 miles in 45 minutes, we can assume that he can walk 1 mile in 15 minutes. From this, we can conclude that Mr. White can walk 4 miles in 1 hour. There are 60 minutes in 1 hour, and 15 goes into 60 four times.

I hoped this helped! If it did, please feel free to rate and press thanks! Have a great day!

what is the slope and y-intercept of 5x + y =6

Answers

Answer:

y int is 6

the slope is -5

Step-by-step explanation:

you write the equation out to slope intercept form, which is y=-5x+6

-5 is the slope because thats the transformation x goes through

6 is the constant which is the y intercept

Please help ASAP please thank you

Answers

Answer:

7

Step-by-step explanation:

A circle is centered at the point (5,-4) and passes

Answers

Answer:

it is c

Step-by-step explanation:

You have to line up the graph and see then your gonna wanna solve it from there hope this helps

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