mjj2027 mjj2027
  • 23-02-2024
  • Mathematics
contestada

a copy machine can copy a report in 30 minutes. When a second copy machine is used at the same time, the copying can be done in 18 minutes. How long does the second machine take alone?

Respuesta :

Otras preguntas

f(x)=9x-6 what is f(1)
What figurative language is "Silence stretched over us?"
which document set up the basic principles and laws that determine the power and duties of the government
why would smith add on to his earlier story?
Ski club members are preparing identical welcome kits for new skiers. the ski club has 60 hand-warmer packets and 48 foot-warmer packets. find the greatest numb
Rachel found some lumps in her breast. she immediately decided to undergo diagnostic test for breast cancer. Which diagnostic procedure would be most useful?
jerusalem straddles what border
what is 60 divided by 1.79
Which number is not written in scientific notation??
Which of the following groupings contains only representative elements: a. cu, co, cd or b. al, mg, li??