Answer:
17ft wide
Step-by-step explanation:
The room is 9 by 19ft
Length (x) = 19ft
Width(y) = 9ft
Area of the rug = 119ft^2
x*y = 119 ...........(1)
For the second equation we will make sure the strip around the room is uniform in size
9 - x = 19 - y
-x = 19 - 9 -y
-x = 10 - y
x = y - 10 ..........(2)
Put the value x in equation 1
(y - 10)y = 119
y^2 - 10y = 119
y^2 - 10y - 119 = 0
a = 1, b = -10, c= -119
Use quadratic formula to solve the equation
y = (-b +/-√b^2 -4ac) / 2a
y = [-(-10) +/- √ (-10)^2 - 4(1)(-119)] /2(1)
y = (10 +/- √100 + 476) /2
y = (10+/-√ 576 ) / 2
y = (10 +/- 24) / 2
y = (10 + 24) /2 or (10 - 24)/2
y = 34/2 or -14/2
y = 17 or -7
y = 17 ft
Recall that x = y - 10
x = 17 - 10
x = 7ft
you multiply 35 to 72 to get 2520 and then multiply 23 to 94=2139 add both of the answers to get 4659
Answer: 3.75 ft
Step-by-step explanation:
Here we are given the measure of the length of a window. Generally the length is given in the International System of units format (meters); however, in this case we are given the length in feet and inches:
Now, before converting this whole measure to feet, we have to know that 
, then we can perform the conversion:
This means 
Hence:
This is the measure of the length of the window in feet.
So basically you would create an equation from y=mx+b, so you would put 40 in for m and to find x you convert 1.2 hours into minutes which is 72 minutes. so multiply 40 times 72 and that’s how far Jack will be i believe. Jack jogged 2,880m/min. Hope it’s correct.
