Answer:
140
Step-by-step explanation:
Solve 40% of 350.
Answer:
Where is it I don't see it?
Step-by-step explanation:
Answer:

Step-by-step explanation:
Let the
be the first number,
be the second number and
be the product of the first and second number.
i.e




Now,

Hence, 
The idea is to use the tangent line to
at
in order to approximate
.
We have


so the linear approximation to
is

Hence
and
.
Then

We know that speed * time = distance
Before we start we need to make sure the units for all three numbers are right
The time is 1/3 of a hour, 1/3*60 = 20 minutes
x * 20 = 22.5
x *2 * 10 = 22.5
2x = 2.25
x = 1.125