You are going to hang strands of lights around each room. The perimeter of each om is 48 ft. How many strands of 50 in. lights will you need to decorate your 4

poms? What would be your unit rate of strands of lights to rooms.

47 strands

12 strands

Step-by-step explanation:

Given that:

Perimeter of a room = 48 feets

Number of rooms = 4

Strands of light to be used = 50 in

Converting the perimeter of a room to inches :

1 foot = 12 inches

48 feets = (12 * 48) = 576 inches

Total perimeter of the rooms in inches ;

576 inches * 4 = 2304 inches

Strands of 50 in light required for the 4 rooms;

2304 inches / 50 inches

= 46.08

= about 47 strands

Strands of light per room :

46.08 / 4

= 11.52 (about 12 strands)

= 12 strands

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.