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enot [183]
3 years ago
5

15-kilogram ham costs $9/kg. Find the cost per pound. Round to the nearest hundredth

Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
5 0

Answer:

$4.08/lb

Step-by-step explanation:

$9/kg × (0.45359237 kg/lb) = $4.08/lb

_____

<em>Comment on conversion factors</em>

The conversion factor is chosen to have a value of 1, that is 0.45359237 kg = 1 lb (by definition). It is also chosen so that when we multiply by it, we cancel the units of kg and leave units of lb.

mina [271]3 years ago
4 0

The thousandth’s place of \$ {\text{4}}{\text{.08233133}}/{\text{lb}} is 2 and the nearest hundredth is \boxed{{\mathbf{\$ 4}}{\mathbf{.08/lb}}}.

Further explanation:  

The problem can be solved by the unit conversion and by the concept of nearest thousand.

Given:

The cost of 15{\text{ -  kilogram ham}} is \$ 9/{\text{kg}}.

Step by step explanation:

Step 1:

First we determine that the number of pounds in one kilogram.

The unit of pound can be written as {\text{lb}} and the unit of kilogram can be written as {\text{kg}}.

The relation between number of pound and the kilograms is 1{\text{ lb}} = 0.45359237.

Step 2:

It is given that the cost of 15{\text{ -  kilogram ham}} is \$ 9/{\text{kg}}.

Now multiply 0.45359237 with \$ 9/kg to obtain the cost per pound as,

\begin{aligned}\$ 9/kg &= \left( {0.45359237 \times 9} \right)\$ /{\text{lb}}\\&= \$ {\text{4}}{\text{.08233133}}/{\text{lb}}\\\end{aligned}  

Therefore, the cost per pound is \$ {\text{4}}{\text{.08233133}}/{\text{lb}}.

Step 3:

Now determine the cost \$ {\text{4}}{\text{.08233133}}/{\text{lb}} to the nearest hundredth.

To round the number to nearest hundredth the following criteria has to be followed.

Round down the number if the thousandth’s place of the given number is 0,1,2,3{\text{ or 4}}.

Round up the number if the thousandth’s place of the given number is 0,1,2,3{\text{ or 4}}.

It can be better explained through an example.

Consider an example 2487.3493{\text{ and 8754}}{\text{.9213}}.

In the number 2487.3493, the thousandth’s place is 9 that we need to round up.

The rounded hundredth number of 2487.3493 is 2487.35.

In the number {\text{8754}}{\text{.9213}}, the thousandth’s place is 1 that we need to round down.

The rounded hundredth number of {\text{8754}}{\text{.9213}} is {\text{8754}}{\text{.920}}.

Similarly in this way the nearest hundredth of \$ {\text{4}}{\text{.08233133}}/{\text{lb}} can be found.

As we can the thousandth’s place of \$ {\text{4}}{\text{.08233133}}/{\text{lb}} is 2 therefore, the nearest hundredth is \$ {\text{4}}{\text{.08}}/{\text{lb}}  

Learn more:  

  1. Learn more about the distance between the points brainly.com/question/6278187
  2. Learn more about the equivalent fractionhttps://brainly.com/question/952259
  3. Learn more about midpoint of the segment brainly.com/question/3269852

Answer details:

Grade: Junior school

Subject: Mathematics

Chapter: Round off the numbers

Keywords: 15-kilogram ham, cost, pound, nearest hundredths, thousandths, multiply, place, round up, round down, unit, conversion, cost.

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