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

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

identify the base of the expression x^5

8TH GRADE MATH! You dont have to explain it if you dont want to :> but i fr need help

A 28 -inch board is to be cut into three pieces so that the second piece is twice as long as the first piece and the third piece is four times as long as the f

Which of the following is not an open source organization or software? A. Eclipse Foundation B. Open Group Apache C. Software Foundation D. Freedom OS Group

What is the meaning of nativism

In the diagram to the left, A man pushes two creates, each with mass 50 kg. To the right with a force of 200 N. How fast will the accelerate

Aditya left home and cycled 20 kilometre South was then he turned right and cycled 10 km then he turned right and side equal to 20 km then he turned left and c

Compare and contrast artifacts and fossils

How is filling an appointed office different from filling an elected office?

Which of the following options have the same value as 65% of 20?