Rodrigo practiced playing the guitar 15 1/3 hours over the past 3 weeks. he practiced for 6 1/4 hours during the first week and 4 2/3 hours during the second week. how much time did rodrigo spend practicing the third week? use the numbers and symbols to write an equation that represents the problem. symbols may be used more than once or not at all. [ 15 1/3 ] [ 6 1/4 ] [4 2/3 ] [x (multiply)] [= (equals) ] [ + (add) ] solve the equation.

Use this data in the problem below. follow the steps carefully. round to the nearest tenth. lot 3: week 1: 345 week 2: 340 week 3: 400 week 4: 325 step 1. jim enters the data and calculates the average or mean. step 2. jim calculates the deviation from the mean by subtracting the mean from each value. step 3. jim squares each deviation to remove negative signs. step 4. jim sums the squares of each deviation and divides by the count for the variance. step 5. jim takes the square root of the variance to find the standard deviation.

Fabian harvests 10 pounds of tomatoes from his garden. he needs 225 pounds to make a batch of soup. if he sets aside 2.8 pounds of tomatoes to make spaghetti sauce, how many batches of soup can fabian make?

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.