Answer: I have no idea
Step-by-step explanation:
Answer:
Step-by-step explanation:
we know that
The perimeter of rectangle is equal to
In this problem we have
substitute in the formula and solve for L
simplify
Answer:
just do 20 percent of 1200 then add it to 1200
Answer:
Ram: 21, Hari: 12
Step-by-step explanation:
To solve the problem, we can use the following notation. We call:
= Ram's age at present
= Hari's age at present
We know that:
- Ram is 9 years older than Hari --> mathematically, this can be written as
- Three years ago, Ram was two times as old as Hari was --> mathematically, this can be written as
where (r-3) is Ram's age 3 years ago, while (h-3) is Hari's age 3 years ago
Substituting eq.(1) into eq.(2), we find:
So, Hari's age is 12; therefore, Ram's age is
Answer:
Option A.
Step-by-step explanation:
The given expression is
We need to find the difference round to the less precise measurement.
Taking out the common factor.
Precise measurement of given expression is 81.2g.
A measurement with more decimal places is more precise and vice versa.
Now, approx the answer to the the nearest whole measure.
The less precise measurement of given expression is 81g.
Therefore, the correct option is A.