Answer:
The length is 
The width is 
Step-by-step explanation:
we know that
The area of rectangle is equal to
we have
so
-----> equation A
------> equation B
substitute equation B in equation A and solve for L
using a graphing tool------> solve the quadratic equation
The solution is 
see the attached figure
<em>Find the value of W</em>
Answer:
<h2>Let the number is = X </h2><h2>Two thirds of the number = 2x/3</h2><h2 /><h2>According to the problem given,</h2><h2>x+ 2x/3 = 55</h2><h2>( 3x + 2x ) /3 = 55</h2><h2>5x /3 = 55</h2><h2>x = ( 55 × 3 ) /5</h2><h2>x = 11 × 3</h2><h2>x = 33 </h2>
<h2>Therefore,</h2><h2>Required number = x = 33</h2>
Answer:
F is reduced by 31%
Step-by-step explanation:
F = 1/(d²)
now, we increase the distance by 20% (multiply by 1.2).
F new = 1/(1.2×d)² = 1/(1.44×d²) = (1/1.44) × (1/(d²)) =
= 1/1.44 × old F = 0.69 × old F
100 - 69 = 31%
Answer:
b=-4a-52 or -b=4a+52
Step-by-step explanation:
because you can subtract 4a to the other side or you can subtract 52 to the other side then subtract b to get the second equation.
hope this helps :)
Answer:
At least 4
Step-by-step explanation:
Photo of my work and where I got the equation from
