Question

# The load capacity of a certain washing machine is 12 pounds. What is the approximate load capacity of the same washing machine, in kilograms?

( 1 kilogram = 2.2046 pounds)

- 2.2
- 5.4
- 9.8
- 26.5

Hint:

**Hint:**

We simply need to convert the unit of measurement of mass. We are given the conversion factor in the question itself. We need to write the given units and the required units in an equation and get the result by converting that equation into a fraction with required unit in the numerator and the given unit in denominator, then we just solve the equation to get the required result

## The correct answer is: 5.4

### It is given that,

1 kilogram = 2.2046 pounds

This is the unit conversion factor. We use unitary method to solve the problem. So we find the value of a single unit first.

So, we get

1 pound = kilograms

Given,

Load capacity of a washing machine = 12 pounds

We need to convert this into kilograms.

As

1 pound = kilograms

So, we have,

12 pounds = 12 kilograms

Thus, the correct option is B)

**Note:**

There are many other units of weight such as ton, ounce, gram, stone, grain, milligram, etc. There is conversion formula for each of these pairs, for eg.

1 kilogram = 35.27 ounce= 0.16 stone= 1000 gram

1 pound= 16 ounce= 0.07 stone= 435.60 gram

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For the solution of the system of equations above, what is the value of ?

**Note:**

The equations can be solved in many other ways like substitution

method which is: to eliminate one variable in any one of the

equations with the help of other equation. As we need to find the

value of x, we try to find the value of y in terms of x from one

equation. Then put that value of y in the other equation to get a linear equation in one variable , which is x.

For the solution of the system of equations above, what is the value of ?

**Note:**

The equations can be solved in many other ways like substitution

method which is: to eliminate one variable in any one of the

equations with the help of other equation. As we need to find the

value of x, we try to find the value of y in terms of x from one

equation. Then put that value of y in the other equation to get a linear equation in one variable , which is x.