Hello,
<u>Perimeter of a rectangle :</u> 2 * (length + width)
<u>Area of a rectangle :</u> length * width
We know that the perimeter of the rectangle is equal to 10 feet and its area is equal to 6 square feet.
Let's call x the length of the rectangle and y the width of the rectangle. The pair (x ; y) verifies the following system :
2 (x + y) = 10 ⇔ x + y = 5 ⇔ x = 5 - y
x * y = 6 ⇔ (5 - y) * y = 6 ⇔ 5y - y² - 6 = 0 ⇔ y² - 5y + 6 = 0
⇔ y² - 3y - 2y + 6 = 0 ⇔ y(y - 3) - 2(y - 3) = 0 ⇔ (y - 2)(y - 3) = 0
⇔ y = 2 ou y = 3
x = 5 - y ⇔ x = 5 - 2 or x = 3 - 2 ⇔ x = 3 or y = 2
S = {(3 ; 2) ; (2 ; 3)}
The width of the rectangle is 2 or 3 feet.
:-)
Answer:
bucket one- 1:28
bucket two- 1:31
Step-by-step explanation:
you have to subtract 5- the number then you have to add it to the time remember 60 mins in a hour
8/7 each side of the expression both go up by 1
Answer:
The answer is D
Step-by-step explanation:
Step-by-step explanation:
the number divisible by 3 is the digit add together can divisible by 3.
778 is 7+7+8=22 (can't divisible by 3)
339 is 3+3+9=15 (can)
483 is 4+8+3=15 (can)
2747 is 2+7+4+7=20 (can't)
829 is 8+2+9=19 (can't)
438 is 4+3+8=15 (can)
51.979 (can't) because it isn't intiger number.
1116 is 1+1+1+6=9 (can)
...
So 339 483 438 1116 1857 57 3417 divisible by 3.