Answer:
C or A
Step-by-step explanation:
Answer:
In 29 1/2 days, the total pipe laid is
mile.
Step-by-step explanation:
The length of pipe laid in 1 day = 1/8 mile
So, the length of pipe laid in half day = half of (1/8 mile)
= 
Now, 29 1/2 days on simplification means 29 and half day.
So, length of pipe in 29 days =
mile
Now adding the length laid in half day = 
So, in 29 1/2 days, the total pipe laid is
mile.
Answer:
y = 48
Step-by-step explanation:
given y is directly proportional to x then the equation connecting them is
y = kx ← k is the constant of proportionality
To find k use the condition y = 36 when x = 30
k =
=
= 
y =
x ← equation of proportionality
When x = 40 then
y =
× 40 = 48
3x3x3x3 = 81
x.x.x.x = x^4
2x2x2x2 = 16
B. 81x^4/16