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Answer:
160 lbs = 72.57kg
Step-by-step explanation:
This can be solved as a rule of three problem.
In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.
When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too.
When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease.
Unit conversion problems, like this one, is an example of a direct relationship between measures.
Each lb has 0.45kg. How many kg are there in 160lbs. So:
1lb - 0.45kg
160 lbs - xkg
kg
160 lbs = 72.57kg
Answer:
The mathematical statement can be written as follows
which has solution as
⇒
Step-by-step explanation:
Given:
Two thirds of a number decreased by 27 is at least 9.
This statement can be transformed into a mathematical statement.
Taking the unknown number as and putting the inequality
as the result is at least 9.
So, we have
Adding 27 both sides
Multiplying both sides by 3.
Dividing both sides by 2.
∴