mrpjams7364 mrpjams7364
  • 01-01-2018
  • Mathematics
contestada

If shane mailed out 40% of his holiday cards, and he still has 18 cards left to mail, how many total cards did he have to mail?

Respuesta :

mreijepatmat
mreijepatmat mreijepatmat
  • 01-01-2018
Let x be the total number of holiday's cards:

1st, he mailed 40% of x → 0.4x
2nd, he still have 18 cards
3rd, x =  0.4x + 18 → x-0.4x = 18 → 0.6x = 18 and x = 18/0.6 → x = 30

Answer Link

Otras preguntas

Evaluate πr² when r = 4.5. Use 3.14 for π. 1) 63.585 2) 199.6569 3) 14.13 4) 28.26
Why has Grendel been exiled? * A. Grendel was exiled by God for killing Cain.B. Grendel has been exiled, together with all monsters, goblins, and forms of evil-
Please help! I’ll give brainliest to whoever answers also! Thank you!
You need at least $635 to go on a trip to Washington, DC. You already have $75 saved for the trip. You decide to save an additional $65 per week. Which inequali
How much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 10% ​antifreeze? To obtain a 10% antifreeze​ solution, _ ​gallon(s) o
what is the function or protons, neutrons, and electrons? someone help please
What is the frequency of a wave that has a period of 0.5 seconds
Which 2 Nations colonized South Africa?
Do you agree with the saying,“anything worth anything takes hard work?” Why or why not?
At the 2010 Olympics in Vancouver, Yu-Na Kim scored 226.56 points in woman's figure skating. Akiko Suzuki scored 181.44 points in the event. About how many more