Question

Hailey paid \$13$13dollar sign, 13 for 1\dfrac3{7} \text{ kg}1 7 3 ​ kg1, start fraction, 3, divided by, 7, end fraction, start text, space, k, g, end text of sliced salami. What was the cost per kilogram of salami?

Answer 1

Hailey paid \$13$13dollar sign, 13 for 1\dfrac3{7} \text{ kg}1 7 3 kg1, start fraction, 3, divided by, 7, end fraction, start text, space, k, g, end text of sliced

Answer 2

Concept:
One of the fundamental mathematical operations is division, which involves breaking a bigger number into smaller groups with the same number of components. How many groups will be created, for instance, if 30 students need to be separated into groups of five for a sporting event? The division operation may be used to quickly and simply fix such issues. In this case, we must divide 30 by 5.
i.e. 30 / 5 = 6 will be the outcome. There will thus be 6 groups with 5 students each.

Given
Hailey paid $ 13 for $1\dfrac{3}{7}$ kg.

Find:
Determine the cost per kilogram of salami.

Solution:
Hailey paid $ 13 for $1\dfrac{3}{7}$ kg.
Let, x be the price of the salami per kg.

$1\dfrac{3}{7}x=13\\\implies \dfrac{10}{7}x=13$

$\implies x= \dfrac{13\times 7}{10}$
$\implies x = \dfrac{91}{10} = 9.1$

So, the cost of salami per kilogram of salami is  $9.1

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