Answer:
-4/5 = x
Step-by-step explanation:
Answer:
s= 2( lw + hw+ hl)
298
Step-by-step explanation:
w = 8inched
l=12inches
h=4inches
s = 2 ((12×8)+(4×8)+(4×12))
=2 (96+32+48)
= 2 (149) =298
Answer:
$520.96
Step-by-step explanation:
The composite is made up of 2 semicircles and a rectangle:
⇒ Radius of the circle = 2 ft
⇒ Length of the rectangle = 5 ft
⇒ Width of the rectangle = 4 ft
Area
⇒ π(2)² + (5 x 4)
⇒ 4π + 20
⇒ 32.56 ft²
Cost
= 32.56 x 16
= $520.96
<h2>
Part a) </h2><h2>
Explain the error in this simplification.</h2>
Given the simplified expression
<u><em>Identifying the Main Error</em></u>
← ERROR Starts here
<u><em>Here is the Explanation of the Error </em></u>
<u><em /></u>
<u><em /></u>
<em>. </em>In your case you wrongly multiply the equation.
<em><u>CORRECTION</u></em>
<em>HERE IS HOW YOU SHOULD HAVE MULTIPLIED BY </em><em>LCM = (x-2)(x+2):</em>
<em />
<h2>
Part b) </h2><h2>
Show your work as you correct the error</h2>
Here is the complete correction of the error.
Considering the expression
Answer: t = (3/4)h hours.
Therefore, it takes both of them (3/4)h hours to complete the task.
Step-by-step explanation:
Let
t1 represent the time taken for the one worker to complete a task.
t2 represent the time taken for the second worker to complete a task
And t represent the time taken for both.
t1 = h
t2 = 3h
Let x represent the task.
x = rate × time
r1,r2 and r are the rates at which first, second and both worker works
x = r1(t1). .....1
x = r2(t2). ....2
x = r(t) ....3
And,
r = r1 + r2. ( Rate of both equals sum of rates of the two)
From eqn 1 and 2
r1 = x/t1 = x/h
r2 = x/t2 = x/3h
r = r1 + r2 = x/h + x/3h = 4x/3h
Substituting r = 4x/3h into equation 3
x= r(t)
x = (4x/3h)t
Making t the subject of formula
t = x/(4x/3h)
t = 1/(4/3h)
t = 3h/4
t = (3/4)h hours.
Therefore, it takes both of them (3/4)h hours to complete the task.
