Answer: 1 ) 20.58 cm^3
2 ) $0.09
3 ) $ 0.41
Step-by-step explanation:
Answer:
The cost of per kilogram of salami is = $9.1
Step-by-step explanation:
Given:
Hailey paid $13 for
kg of sliced salami.
To find cost per kilogram of salami.
Solution:
We will apply unitary method to find per kilogram cost of salami.
If
kg of salami costs = $13
Then 1 kg of salami will cost in dollars will be = 
In order to divide by mixed numbers, we will convert mixed numbers to fractions.
⇒ 
⇒ 
In order to divide by fractions we will take reciprocal of divisor and then multiply.
⇒ 
⇒ 
⇒ 
⇒ 
Thus, cost of per kilogram of salami is = $9.1
First we write the variables already defined:
m = the number of magazine subscriptions sold
n = the number of newspaper subscriptions sold
We now write the system of inequations based on the following facts:
"he earns $ 23 for each magazine subscription and $ 54 for each newspaper subscription that he sells. his goal is to make more than $ 642 per week"
23m + 54n> 642
"I have expectations to sell at least 10 subscriptions per week"
m + n> = 10
Answer:
A system of inequalities that models the given situation is:
23m + 54n> 642
m + n> = 10