Solving Mathematical Problems: Find the Answers Here

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SUMMARY

This discussion addresses four mathematical problems involving number theory and basic algebra. The first problem requires finding a three-digit number that, when added to its inverse, exceeds 1900. The second problem involves calculating attendance-related earnings over four weeks, factoring in specific days off. The third problem focuses on determining the dimensions of a rectangle and the cost of turf based on given perimeters. The fourth problem calculates profit margins and sales quantities for chocolates sold at specified prices. Each problem presents unique challenges that require analytical problem-solving skills.

PREREQUISITES
  • Understanding of basic algebraic concepts
  • Familiarity with number theory, specifically inverses
  • Knowledge of perimeter and area calculations
  • Basic principles of profit and loss calculations
NEXT STEPS
  • Study inverse operations in number theory
  • Learn how to calculate profit margins in business scenarios
  • Explore perimeter and area formulas for various geometric shapes
  • Practice solving word problems involving algebraic expressions
USEFUL FOR

Students, educators, and anyone interested in enhancing their mathematical problem-solving skills, particularly in algebra and geometry.

premoh
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I have some problems.


Number 1)

Two people are playing, they take a three digit number, at this number, we add its inverse, and wins the number before arrives a sum > 1900, what sum or sums are these? What number is that?



Number 2)

A person receives 1 euro if He arrive on time to school, but it loses if It arrives late. In 4 weeks has won 11 euros, knowing that the 4 weeks are both 5 days and Wednesdays are asleep, that there were two days when won 6 euros and 11 euros to win in 4 weeks, calculate how many have stayed Wednesday and date of those days (with 6 euros).


Number 3)

The price per square foot of turf costs 4.5 euros, the gardens in which you want to implement grass, is a square and a rectangle, both of perimeter 120 (m), knowing that the base of the rectangle is twice the height , calculate the dimensions of the rectangle and the price would lead to implement the lawn.

Number 4)

A pastry made chocolates, to 20 euros a kilo, and distributes 50 to 45 grams (the weight in chocolates), and decides to sell euros to 1.10 and 1 respectively, what is the percentage of profit? What is the gain if sold 100 candy for each? How many chocolates have to sell to reach this amount, referring to 20 euros?


Sorry, what's the template ?

I am spanish and I don't understand, the traductor is very poor.
 
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welcome to pf!

hi premoh! welcome to pf! :smile:
premoh said:
Sorry, what's the template ?

I am spanish and I don't understand, the traductor is very poor.

the template is the a b c fomrat which you seem to have deleted …

the idea is that first you show us what you have done, and then we help! :wink:

(try 3 and 4 first … i don't understand 1 and 2 :redface:)
 

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