Answer:
Your answer is <em>6x</em>
Step-by-step explanation:
Given,
length(l) = 3x
breadth(b) = 2x
area of a rectangle(A) = ?
Now,
A = l*b
A = 3x*2x
A = 6x ans.
Hope its helpful!
Please mark me as brainlist.
If you draw a diagram of this, your given values of the resulting triangle give you the sides opposite and adjacent of the angle. The formula that uses these sides is tangent.
The tangent of an angle is equal to the ratio of the opposite side over the other non-hypotenuse side (adjacent).
Therefore;
![tan(40)=70/x](https://tex.z-dn.net/?f=tan%2840%29%3D70%2Fx)
![0.83909963117=70/x](https://tex.z-dn.net/?f=0.83909963117%3D70%2Fx)
![0.83909963117x=70](https://tex.z-dn.net/?f=0.83909963117x%3D70)
![x=70/0.83909963117](https://tex.z-dn.net/?f=x%3D70%2F0.83909963117)
![x=83.4227514823](https://tex.z-dn.net/?f=x%3D83.4227514823)
Where x is the length of the string in feet.
Answer:
28 students
Step-by-step explanation:
Work backwards.
First, subtract 3:
115 - 3 = 112
Then, divide by 4:
112 ÷ 4 = 28
So, there are 28 math students in his class.
Answer:
875cm^2
Step-by-step explanation:
since opposite sides are equal
3x-y=2x+y
x=2y
y=x/2 ....(i)
thus new length=2x+y
=2x+(x/2) [using (i)]
=(4x+x)/2
l=5x/2 .....(ii)
now,
perimeter=2(l+b)=120cm
l+b=60cm
from figure and using (ii)
[5x/2]+2x-3=60
[5x+4x-6]/2=60
9x-6=120
9x=126
x=126/9
x=14 ..........(iii)
substitute (iii) in (i)
y=14/2
y=7 ...........(iv)
From figure,
length=2x+y [using (iii) and (iv)]
=2x14+7
length=35cm
breadth=2x-3
=2x14-3 ....[using(iii)]
=28-3
breadth=25cm
now,
Area=lxb
=35x25
=875cm^2