Answer:
12
Step-by-step explanation:
4x + 5y = 3 ................ (i)
kx + 15y = 9................(ii)
Dividing eqn (ii) by 3, we get,
k/3 x + 5y = 3.............(iii)
Subtracting eqn (iii) by eqn (i), we get,
-4x - k/3 x = 0
or, -(4 - k/3 )x = 0
or, 4 - k/3 = 0/x
or, 4 - k/3 = 0
or, 4 = k/3
or, k = 4*3
:. k = 12 (Ans)
Answer:
The length of the hypotenuse is 
Step-by-step explanation:
we know that
In a right triangle
Applying the Pythagoras Theorem
where
c is the hypotenuse
a,b are the legs of the right triangle
substitute the values
Simplify
Answer:
26/144
Step-by-step explanation:
Answer:
Surface area: 18,144m
Volume: 139,968m³
Step-by-step explanation:
Surface area:
72x72 = 5184m on bottom, as well as top
5184+5184= 10368
27x72 for side length = 1944
1944 x 4 sides = 7776
7776+10368 = 18,144m surface area
Volume:
72x72x27 = 139,968m³
It is elastic since when it is 5 dollars it is 1 dollar per 20 lattes but when you add 2 dollars and 50 you pay 1 dollar for 25
