armitchell123 armitchell123
  • 15-11-2018
  • Mathematics
contestada

Ted bought seven CDs. A week later half of all his CDs were destroyed in a fire. There are now only 20 CDs left. With how many did he start?

Respuesta :

josie311251
josie311251 josie311251
  • 15-11-2018

Answer: 33 CDs

Since half the CDs were destroyed, you need to find the total CDs Ted had before the fire.

20 CDs = 1/2 of what Ted had

20*2=40 CDs

Now, subtract 7 from the 40 CDs to find the amount he had in the beginning.

40-7=33

Answer Link
hanahleekim
hanahleekim hanahleekim
  • 15-11-2018

33CDs

20 is half. 40 he had after buying 7. 40-7 is 33.

Answer Link

Otras preguntas

The steps of how to do it
Line JK passes through points j(-4, -5) and k(-6,3) If The Equations of the line is written in slooe intercept form y=mx+b what is the value of b?
What is perpendicular to y=-1/2x+11
help me someone!!!!!!!!!!!!!!!!!!!!!!!
A dance floor is in the shape of a rectangle. It is 26 meters long and 21 meters wide. What is its perimeter?
Kent is twirling a ball attached to a string in a clockwise direction. If Kent lets go of the string, which of the following describes the motion that the ball
Draw the amide formed when isopropylamine (ch3ch(ch3)nh2) is heated with each carboxylic acid.
How did Germany react to the increased demand for weapons ? who oversaw this effert
Jack just opened a checking account at the bank. Within the first month, he deposited three checks for $34.98, $51.02, and $51.22. He withdrew $3.23 for new pen
twind is considered to be an abiotic factor because it.?