A man wishes to to fence a rectangular lot which ensures 80 feet by 140 feet. The fence along the front (80 ft) of the lot costs one and one-half times as much per foot as that along the three other sides. If the total cost of the fence is $960, find the cost per foot of each type of fence.

$2 per foot for all 3 sides standard and if the front fence is standard cost is multiplied by 1 1/2 would costs $3 at the front

Step-by-step explanation:

80ft + 80ft + 140ft + 140ft = 1 1/2( 80ft) + (80ft) + (140ft) + (140ft) = 960  = 120 + 80+ 140+ 140= 480 (2)  =  $2 per foot for all three sides and  2( 1 1/2) = $3 per foot for front fence

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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step-by-step explanation:

the first option is the answer.