A man wants to enclose a rectangular garden adjacent to a river. The length of the rectangle is two times the width. How many linear feet of fence must he buy if he does not need fencing along the river and the perimeter of the rectangle is 240 feet?

Answer

200, 160

Step-by-step explanation:

if the perimeter is 240 it means sides are 40 by 80.

if he does not need to place fencing on one side, they remove one 80 or 40,

40+80+80=160 or 40+40+80=200

Boom Answer!

ryan had a head start of 10 meters.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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