tylernimmo tylernimmo
  • 30-08-2018
  • Mathematics
contestada

a disk costs 3 more then a tape role bought five disks and two tapes. the total cost was 120

Respuesta :

me72003 me72003
  • 30-08-2018

5(x+3)+2x=120
5x+15+2x=120
7x+15=120
7x=105
x=15
Tape cost $15 disks cost $18

Answer Link

Otras preguntas

the teacher separated her class of twenty-eight student into two group. one group has 4 more than twice as many students as the other group. how many students
In 25 minutes Li can run 10 laps around the track find the constant of proportionality
what is the expanded form of 325
HOW DID THE NILE SHAPE THE ANCIENT EGYPT ?
Ismael is comparing cell phone plans before upgrading his phone. Ameri-Mobile offers a low activation fee, but a high monthly payment. Cell-U-Later offers a l
Explain the role that Eli Whitney played in America's industrial revolution. What impact did his inventions have on the South and what impact was felt in the No
What must the slope of a line be if it is parallel to the line 8y+12x=-6
Between which pair of numbers is the exact product of 379 and 8?
How do you write 57 in word form
What are the two main factors that determine an area's biome
ACCESS MORE