Answer:
8% increase
Step-by-step explanation:
The length after the increase:
30 x 1.1 = 33cm
The width after the increase:
20 x 1.05 = 21cm
New perimeter:
2(33 + 21) = 108 cm^2
Old perimeter:
2(30 + 20) = 100 cm^2
Percentage increase of area:
108 / 100 = 1.08 = 8% increase
Answer:
a)
is greatest fraction.
b)
is greatest fraction.
c)
is greatest fraction.
d)
is greatest fraction.
Solution:
To compare two fraction we need to make denominator of both the fraction same.
a)Given fraction are
and 

So
is equivalent to 
So 
Hence
that is
is greater than 
b)Given fraction are
and 

Similarly we get 
So 

That is 
Hence
is greater than 
c) Given fraction are
and 

So 
That is 
Hence
is greater than 
d)Given fraction are
,
and 


Similarly we get

So 
That is 
Hence
is greatest fraction.
Answer:
5859375
Step-by-step explanation:
These are the terms of a geometric sequence with n th term
=

where r is the common ratio and
the first term
here r =
=
=
= 5 and
= 3, hence
= 3 ×
= 5859375
Answer: 67.5 meters
Step by step explanation
I think you meant the scale drawing is 9 cm so all you have to do is multiple 9 times 7.5 because 1 cm is 7.5 so if you multiple 9 times 7.5 you get how much it is in real life which is 67.5