Answer:
Width = 7units
Step-by-step explanation:
The area of a rectangle
A = h * w
A - area of a rectangle
h - height of a rectangle
w - width of a rectangle
Or
A = length * breadth
It's all the same
Given :
h = 1 + w
w = w
A = 56
56 = ( 1 + w) * w
56 = ( 1 + w)w
56 = w + w^2
56 = w^2 + w
w^2 + w - 56 = 0
Find a factor that can be multiplied to give -56
and added to give + 1
The factor is 8 and -7
Substitute 8w - 7w for w
w^2 + 8w - 7w - 56 = 0
( w^2 + 8w) - (7w - 56) = 0
w( w + 8) - 7( w + 8) = 0
( w - 7) = 0
( w + 8) =0
w - 7 = 0
w = 7
w + 8 = 0
w = -8
Since a side of any rectangle can not be negative
w = 7
The width of the rectangle is 7units
The length of the rectangle is 1 + w = 1 + 7 = 8units
Answer:
d represents distance
d = -16.8
Step-by-step explanation:
From the question, we are to find the vale of d from the expression
12+d = -4.8
Subtract 12 from both sides
12+d-12 = -4.8-12
d = -4.8-12
d = -16.8
Hence the value of d that makes two equation true is 16.8
d represents distance
Answer:
Infinite
Step-by-step explanation:
2(x-6)+2x=4(x-3) would turn into:
2x-12+2x=4x-12 which would turn into:
4x-12=4x-12 then you could keep going if you wanted:
add 12 to both sides and subtract 4x from both sides:
0=0 (and zero does equal zero so it is unlimited solutions)
Answer:
The percentage of country A population to the world population
= 3.05%
Step-by-step explanation:
Country A population as of 2016
= 226 million
= 226000000
The world population as of 2016
= 7.4 billion
= 7400000000
The percentage of country A population to the world population
= Country A population /The world population
The percentage of country A population to the world population
= 226000000/7400000000
The percentage of country A population to the world population
= 0.03054
Now multiplying by 100
= 3.05%
