dsmith538 dsmith538
  • 01-04-2019
  • Mathematics
contestada

the sum of three numbers is 125. the second number is 5 less than the first. the third number is 4 times the second. what are the numbers​

Respuesta :

desperatesmile
desperatesmile desperatesmile
  • 01-04-2019

Answer:

The numbers are 25, 20 and 80

Step-by-step explanation:

125=a+b+c

b=a-5

c=4b

c=4(a-5)

c=4a-20

125=a+a-5+4a-20

125=6a-25

150=6a

25=a

b=a-5

b=25-5

b=20

c=4b

c=4(20)

c=80

✓:

80+20+25=125✓

Answer Link

Otras preguntas

What kind of information do the seismic stations collect
Help please!! Please show work too.
What was gained by the Korean War?
The greatest expression of the lac operon occurs when lactose levels are _____.
How does the poet develop the extended metaphor of the caged bird in the last two lines?
Which topic might interest a sociologist? how to motivate people in the workplace how to counsel a student who is failing school why people in groups tend to fo
How many people have served as President, but were never elected to that office as President or VP?
What is equivalent to (81m^6)^1/2
The " Patriots" were Americans fighting for freedom.is this true or false​
Which sentence uses the correct verbs? A. Anyone joining our dojo, including the kids, soon learn the importance of discipline in aikido. B. Anyone joining ou