Carina Taveras

problems/variables.js

@@ -7,6 +7,14 @@
 //  * 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 = 1990
+ let futureYear = 2026
+ let ageMax = futureYear - birthYear 
+ let ageMin = ageMax - 1
+
+ console.log(`I will be either ${ageMin} or ${ageMax} in ${futureYear}.`)
+
+
 // ## Problem Two
 
 // Snack Supply Calculator:
@@ -16,14 +24,27 @@
 //  * 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 = 7
+let areaOfCircle = (radius * radius * Math.PI)
+let circumferenceOfCircle = (Math.PI * radius * 2)
+console.log(`The circumference is ${circumferenceOfCircle} and the area is ${areaOfCircle}.`)
 // ## Problem Four
 
 // Temperature Converter:
@@ -32,6 +53,14 @@
 //  * Now store a fahrenheit temperature into a variable.
 //  * Convert it to celsius and output "`tempInFahrenheit`°F is `tempInCelsius`°C."
 
+let celsius = 23
+let cToF = (celsius * 1.8 + 32)
+let fahrenheit = 56
+let fToC = ((fahrenheit - 32) / 1.8)
+
+console.log(`${celsius}° C is ${cToF}° F`);
+console.log(`${fahrenheit}°F is ${fToC}°C`)
+
 
 // ## Problem Five
 
@@ -44,6 +73,16 @@
 //  * 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)
+let dee = 90
+average = ((bob + cam + alice + dee) / 4)
+
+if(dee > average ) console.log(`Dees grade is higher than average`)
+
+
 // ## Problem Six
 
 // Find the last number:
@@ -53,6 +92,11 @@
 // * a = 123
 // * Output:
 // * 3
+
+let a = 6790
+let output = a % 10
+
+console.log(`The last digit of ${a} is ${output}.`)
 
 // Hint:
 // Use the remainder % operator.
@@ -82,6 +126,13 @@
 // * alice + x = y * (bob + x)
 // * Solve for alice
 
+let x = 2;
+let y = 4;
+let bobA = 12
+let aliceA = y * (x + bobA)- x 
+console.log(aliceA)
+
+
 // ## Problem Eight
 
 // * Cat and Dog Percentages
@@ -95,6 +146,15 @@
 // * 25% of the daycare animals are cats
 // * 75% of the daycare animals are dogs
 
+let numberOfCats = 20
+let numberOfDogs = 60
+
+let catPerc = ((numberOfCats / (numberOfCats + numberOfDogs))*100)
+let dogPerc = ((numberOfDogs / (numberOfCats + numberOfDogs))*100)
+
+console.log(`The percentage of dogs in the daycare is ${dogPerc}% and the percentage of cats is ${catPerc}%.`)
+
+
 // ## Problem Nine
 
 // * Leap Year Calculator
@@ -107,6 +167,20 @@
 // * For example 1900 was not a leap year, but 2000 was. Print "Leap year!" or "Not a leap year!" depending on the year you are provided.
 
 
+function leapYear(yr) {
+if ((yr % 4 == 0 ) && ( yr % 100 != 0))
+{
+     console.log("Leap year!")}
+else  if  (yr % 400 == 0)
+ {
+    console.log("Leap year!")
+    }
+else 
+{
+    console.log("Not a leap year!")
+    }
+}
+console.log(leapYear(2000))
 // ## Problem Ten: Predict the output
 
 // For this section write what you think will be logged as a comment next to `console.log` like so: `console.log('Cat') //'Cat'` before running the code. Then execute your file and compare with your prediction.
@@ -116,22 +190,20 @@
 //     let num1 = 2
 //     let num2 = 5
 //     let num3 = num1 * num2
-//     console.log(num3)
+//     console.log(num3)// 10
 //     ```
 
 // b. 
 //     ```js
 //     let str = 'jel' 
 //     str += 'lo'
-//     console.log(str)
+//     console.log(str) //jello
 //     ```
 
 // c. 
 //     ```js
 //     let string =  'My favorite number is ';
 //     let number = 42
 //     let sentence = string + number
-//     console.log(typeof(sentence))
+//     console.log(typeof(sentence))/string
 //     ```
-
-