One fifth of a number plus three times the number is equal to twice the number plus 42. What is the number

Question

14-01-2017
Mathematics

contestada

One fifth of a number plus three times the number is equal to twice the number plus 42. What is the number

Respuesta :

Otras preguntas

one very important tool in the ability of president's to make public appeals is mandated in the constitution and is called a. the state-of-the-union speech.b. t

would you use the same wavelength of light to do spectroscopy experiments with different colored solutions?

A simple random sample of items resulted in a sample mean of. The population standard deviation is. Round your answers to two decimal places.

Which observation is consistent with michael porter’s theory of national competitive advantage?.

What was "Yellow Journalism?" a. Reporting of events using sensational, and sometimes false, headlines. b. The very best journalism in the United States, consid

During the first half of the nineteenth century, the central and western areas of new york were known as the “burned-over district” because ______

Mercury, an environmental contaminant if consumed, can accumulate in fish tissue. It is advised that pregnant women avoid the four highest-mercury fish. These i

hebb’s idea of long-term potentiation, which provides a physiological mechanism for the long-term storage of memories, includes the idea of?

from the poem chimney sweeper what did the angel tell the little boy

if a squash plant homozygous for white is crossed with one homozygous for yellow, what will be the appearance of the f1 generation

pxg5022 pxg5022 · Answer 1 · 2017-01-14T22:21:16+01:00

One Fifth of a Number = 1/5N
N=Number
3 Times the Number =3N
Equals - =
Twice the Number = 2N
Plus 42 = + 42

1/5N + 3N = 2N + 42

Now We have to solve

There are many ways you can solve of course. I personally don't like Fractions so I am going to multiply the whole thing with 5.

(1/5N+3N = 2N + 42)5

1N+15N= 10N + 210 -------- Add Like Terms

16N = 10N +210 -------- Now subtract 10 N on -. both side
6N = 210 ------------------ Divide 6 On both sides

N = 35 ------------- The Number is 35

apologiabiology apologiabiology · Answer 2 · 2017-01-14T23:55:00+01:00

apologiabiology apologiabiology

14-01-2017

x is the number
(1/5)x+3x=2x+42
minus 2x both sides
(1/5)x+x=42
(6/5)x=42
times both sides by 5
6x=210
divide both sides by 6
x=35

the number is 35

Answer Link