John had $5.00. His mom gave him $5.00 for washing dishes. John went to the store and bought a CD for $6.00. How much money does John have left? Nancy wants to sell 54 CD's to her 6 friends for $5.00 each. How much will Nancy receive from selling her CD's? If each friend buys the same amount of CD's, how many will each friend buy?

$4

Step-by-step explanation:

$5.00+$5.00=$10.00 (when his mom gave him money)

$10.00-$6.00= $4.00 (when he bought the CD)

John has $4.00 left.

Have a great day! :)

the answer to this question is 3/19

step-by-step explanation:

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.