The length of a room is 8 feet more than twice width. if it takes 124 feet of molding to go around the perimeter of the room, what are its dimensions?

Here's how we do it.

Let's say...

Width=W

Length=L=2w+8

Perimeter=2w+2(2w+8)=2w+4w+16=6w+16

6w=108

w=18

Now we know our width is 18...

L=(124-(18*2))/2=(124-36)/2=88/2=44

In conclusion,...

Length=44

Width=18

I hope this helps y'all out!

%40

step-by-step explanation:

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.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation: