Let the price of 1 liter of milk be m, and let the price of 1 loaf of bread be b.
3 liters of milk cost 3m.
5 loaves of bread cost 5b.
The total is $11.
That gives us the first equation:
3m + 5b = 11
4 liters of milk cost 4m.
4 loaves of bread cost 4b.
The total is $10.
That gives us the second equation:
4m + 4b = 10
We have a system of two equations.
3m + 5b = 11
4m + 4b = 10
Multiply the first equation by -4.
Multiply the second equation by 3.
Then, add the equations.
-12m - 20b = -44
+ 12m + 12b = 30
---------------------------
-8b = -14
b = 14/8 = 7/4 = 1.75
Now substitute b with 1.75 in the first original equation.
3m + 5b = 11
3m + 5(1.75) = 11
3m + 8.75 = 11
3m = 2.25
m = 0.75
Answer: A liter of milk costs $0.75, and a loaf of brad costs $1.75.
100%=15
increae by 60%
100+60=160
160% of 15
15 times 1.60=24
24 liters
Rosie went to the mall to buy new shirts for school. The store she was shopping in had a sale in which all the shirts were $8 each as long as she also bought one pair of shorts for $6. If Rosie spent $38 how many shirts did she buy?
Management information system requires tables, Tables are used only if a person is trying to analyse data and understand its business by summarizing.It is the 1st step of data analysis collecting data. Scatter plot is used when there is a question of association of two or three variable.
Step-by-step explanation:
- Table is the matrix to stack up the data in there respective columns.
- It is the most important setup to analysis.
- It's better used collecting data for any projects or business.
- Tables are even used for Bio statistics and Analytics.
- Databases uses tables for one query table to another query table.
- Scatter plot is dotted plot which analyse two variables.
- Example if a project is eating chocolates in gram in x axis.
- Gaining weight in y axis two variables are used to predict and outcome.
- If a person eats this amount of chocolate it will gain this wait.
- Association rules, contingency statistics and rest.
Answer:
3 odd numbers can make 169, for an example,
33 + 63 + 73
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