1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Olegator [25]
3 years ago
11

4(5n -7) =10+2 i need step by step explanation i dont get it

Mathematics
1 answer:
ser-zykov [4K]3 years ago
7 0

Answer:

n=2

Step-by-step explanation:

4(5n-7)=10+2

1) First, distribute (multiply out 4)

20n-28=10+2

2) Combine like terms (add 10 and 2)

20n-28=12

3) Isolate the variable (Add 28 to 12)

20n=40

4) Isolate the variable (Divide by 20)

n=2

You might be interested in
An electrician needs to run a cable from the top of a 40​-foot tower to a transmitter box located 30 feet away from the base of
grin007 [14]
The cable should be 50 feet.

If you draw the picture, you will see that you have a right triangle.

Let's just use the Pythagorean Theorem to find the hypotenuse (or cable).

30^2 + 40^2 = c^2
2500 = c^2
50 = c
3 0
3 years ago
If four pounds of potatoes cost $6.00, how much would 10 pounds of potatoes cost.
alexira [117]

Answer:

10 pounds of potatoes would cost $15.

Step-by-step explanation:

Set up proportion.

4/6=10/x

simplify 4/6 into 2/3,

2/3=10/x

cross product,

2*x=3*10

2x=30

x=30/2

x=15

3 0
3 years ago
Read 2 more answers
What is an equation of the line that passes through the point (1,6) and is perpendicular to the line x+3y=27
nadezda [96]

Answer:Which of the following is true about fiber in foods?

Group of answer choices

it is not digested

it helps one's muscles grow weaker

it is always thin and threadlike

it is bad for our bodies

Step-by-step explanation:

5 0
3 years ago
Please help will give brainliest
omeli [17]
H = 6 in

V=bh

H=v/b

H=36/6

H=6
5 0
3 years ago
What is the probability of flipping a coin twice and landing on heads both times?
valkas [14]

Answer:

I think it would be B.

Step-by-step explanation:

Since you aready have a 50% chance of landing on both heads or tails once. To land it on heads twice you would have a twenty five percent chance if you look at logic.  in which my dad would often say. <u>Please mark the brainliest</u>

4 0
3 years ago
Other questions:
  • The volume of a fish tank is 20 cubic feet. If the density is 0.2fish over feet cubed, how many fish are in the tank?
    5·2 answers
  • Jill Hartman earns $750 per week plus 3% of sales in excess of $6,500. If Jill sells $25,000 in the first week, her earnings are
    11·1 answer
  • PLEASE HELP I'M DESPERATE &lt;3
    11·2 answers
  • If a cube is divided into two equal parts by a plane parallel to a face of the cube, which of the following best describes the c
    6·1 answer
  • What is 2/42 simplified?
    11·2 answers
  • A set of data has been organized using the stem-and-leaf plot below. What is the range of the data?
    13·1 answer
  • Find the area of a Parallelogram if it was 2 cm and 6 cm
    5·1 answer
  • How to do this with steps please help !
    9·2 answers
  • Help pls area of compound figures
    11·1 answer
  • The annual number of burglaries in a town rose by 50% in 2012 and fell by 10% in 2013. hence the total number of burglaries incr
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!