Andres Ballares

problems/variables.js

@@ -7,23 +7,47 @@
 //  * For example, if you were born in 1988, then in 2026 you'll be either 37 or 38, depending on what month it is in 2026.
 //  * Log them to the screen like so: "I will be either `ageMin` or `ageMax` in `futureYear`", substituting the values.
 
+const birthYear = 1977
+let futureYear = 2021
+let minimumAge = 44 
+let maximumAge = 45
+console.log("I will be either "  +  minimumAge  +  " or "  +  maximumAge  +  " in " + futureYear)
+
 // ## Problem Two
 
+
 // Snack Supply Calculator:
 //  * Store your current age in a variable.
 //  * Store a maximum age in a constant variable.
 //  * Store an estimated snack amount per day (as a number).
 //  * Calculate how many snacks you would eat total, from your current age until the maximum age.
 //  * Log the result to the screen like this: "You will need `snackNumber` to last you until the age of `maxAge`".
 
-// ## Problem Three
+let curAge = 30
+const maxAge = 99
+let snackCount = 3
+let snackNumber = ((maxAge - curAge)*(snackCount * 365))
+
+console.log("You will need "+snackNumber+ " snacks to last you, until the age of "+maxAge)
 
+
+// ## Problem Three
 // Calculate properties of a circle, using the definitions: http://math2.org/math/geometry/circles.htm 
 //  * Store a radius into a variable.
 //  * Calculate the circumference based on the radius, and log "The circumference is `circumferenceResult`".
 //  * Calculate the area based on the radius, and log "The area is `areaOfCircle`".
 //  * Hint: https://www.w3schools.com/jsref/jsref_pi.asp
 
+
+
+let radius = 2
+let circumferenceOfCircle = Math.PI * (radius + radius) 
+let areaOfCircle = Math.PI * (radius * 2)
+
+console.log("The circumference is " +circumferenceOfCircle)
+console.log("The area is " +areaOfCircle +".")
+
+
 // ## Problem Four
 
 // Temperature Converter:
@@ -32,6 +56,19 @@
 //  * Now store a fahrenheit temperature into a variable.
 //  * Convert it to celsius and output "`tempInFahrenheit`°F is `tempInCelsius`°C."
 
+let celsius = 23 
+let celsiusToFahrenheit = (celsius * 9/5) + 32 
+
+console.log(celsius+"°C" +  " is "  + celsiusToFahrenheit+"°F.")
+
+fahrenheit = 90.5
+let fahrenheitToCelsius = (fahrenheit - 32) * 5/9
+
+console.log(fahrenheit+"°F  is " + fahrenheitToCelsius +"°C.")
+
+
+
+
 
 // ## Problem Five
 
@@ -44,6 +81,16 @@
 //  * Find the average grade of all students
 //  * Print out if Dee's grade is higher than the class average
 
+let alice = 70
+let bob = 50
+let cam = 30
+let average = (bob + cam + alice) / 3
+console.log(' The averages of all students is ' + average)
+let dee = 90 
+average = (bob + cam + alice + dee) / 4
+console.log ( ' The new average of the all students is ' + average)
+if(dee > average ) console.log("Dees grade is higher than average")
+
 // ## Problem Six
 
 // Find the last number:
@@ -53,6 +100,11 @@
 // * a = 123
 // * Output:
 // * 3
+
+let a = 123
+let output = 123 % 10
+console.log(output)
+
 
 // Hint:
 // Use the remainder % operator.
@@ -70,6 +122,14 @@
 // * Expected values: 
 // * alice = 27
 // 
+
+x = 3
+y = 2
+bob = 12
+alice = (y * (bob + x)- x)
+console.log(alice)
+
+
 // * Example 2
 // * Input: 
 // * x = 1
@@ -82,6 +142,15 @@
 // * alice + x = y * (bob + x)
 // * Solve for alice
 
+x = 1
+y = 3
+bob = 12
+alice = (y * (bob + x)- x)
+console.log(alice)
+
+
+
+
 // ## Problem Eight
 
 // * Cat and Dog Percentages
@@ -95,6 +164,12 @@
 // * 25% of the daycare animals are cats
 // * 75% of the daycare animals are dogs
 
+let numberOfCats = 100
+let numberOfDogs = 150
+let percentageOfCats = (numberOfCats/(numberOfDogs + numberOfCats))* 100
+let percentageOfDogs = (numberOfDogs/(numberOfDogs + numberOfCats))* 100
+console.log( + percentageOfCats + "% of the daycare animals are cats and  " + percentageOfDogs + "% of the daycare animals are dogs") 
+
 // ## Problem Nine
 
 // * Leap Year Calculator
@@ -118,13 +193,26 @@
 //     let num3 = num1 * num2
 //     console.log(num3)
 //     ```
+//     10
+
+let num1 = 2
+let num2 = 5
+let num3 = num1 * num2
+console.log(num3)
 
 // b. 
+
 //     ```js
 //     let str = 'jel' 
 //     str += 'lo'
 //     console.log(str)
 //     ```
+//     "jello"
+
+let str = 'jel'
+str += 'lo'
+console.log(str)
+
 
 // c. 
 //     ```js
@@ -133,5 +221,11 @@
 //     let sentence = string + number
 //     console.log(typeof(sentence))
 //     ```
+//     "My favorite number is 42"
+//      string
 
+let string = 'My favorite number is';
+let number = 42
+let sentence = string + number
+console.log(typeof(sentence))