Seudónimo Seudónimo
  • 03-05-2017
  • Mathematics
contestada

A pack of gum costs 75 cents. That is 3 cents less than three times what the pack cost 20 years ago. Which equation could be used to find the cost of the gum 20 years ago?

Respuesta :

tiza
tiza tiza
  • 03-05-2017
let's assume the cost 20 years ago equals x

3x - 3 = 75

or

x = 75 / 3 + 3
Answer Link
Аноним Аноним
  • 03-05-2017
75=3c-3
(c stands for cost 20 years ago)
Answer Link

Otras preguntas

name one specific instance where science was or is being used to make decisions
What is honour rationing?
What is the perimeter of a basement floor that is 40 feet long and 24 feet wide
Which words in the sentence below are nouns? I dropped my phone in the pool.
What is a reflected Ray?
Is little available food a characteristic of Athens, Sparta, or both?
How did the Cold War lead to armed weapon conflict?
The Eighteenth Amendment, "Prohibition," was reversed by the _______ Amendment. A. Twenty-second B. Twenty-first C. Twentieth D. Nineteenth
The Eighteenth Amendment, "Prohibition," was reversed by the _______ Amendment. A. Twenty-second B. Twenty-first C. Twentieth D. Nineteenth
What is the source of the oxygen released into the air as a product of photosynthesis?