Let L = Length, and W = Width. We are given the fact that L = 2W, and also know that the area = L x W = 50 square feet. So, by substitution: 2W x W = 50 sq ft, or 2W^2 = 50 sq ft, so W = sq rt (50/2) = 5 ft. Now, L = 2W = 2(5) = 10 ft. The perimeter of the fence is given by: 2L + 2W = 2(10 ft) + 2(5 ft) =20 ft + 10 ft = 30 ft. So, Ben needs 30 ft of fencing.
When dividing an inequality with a negative value , the inequality sign changes direction.
The original Less than or equal to sign should heave been changed to greater than or equal to.
The answer is: When dividing by −8, she did not change the direction of the sign.
A- 56
because it could be simplified to 28 where as the others would become decimals
It will take 36 days for 20 men to complete the building
