the length of a rectangle is equal to triple the width.
find the width of the rectangle if the perimeter is 80 centimeters.

10 cm

Step-by-step explanation:

Let Length be denoted by L and Width be denoted by W

given Length is triple the width , or L = 3W

By definition:

Perimeter of rectangle,

= Length + Length + Width + Width

= 2L + 2W   (substitute L = 3W)

= 2 (3W) + 2W

= 6W + 2W

= 8W

Given perimenter is 80 cm,

8W = 80 cm

W = 80 / 8 = 10 cm

10 cm

Step-by-step explanation:

If the length of a rectangle is equal to triple the width, the width of the rectangle is 10 cm if the perimeter is 80 centimeters.

L = 3w

P = 80

Formula: a = l × w

8W = 80 cm

W = 80 / 8 = 10 cm

Therefore, the width of the rectangle is 10 centimeters.

the answer is 375 miles

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.