Amelie solves the following system of equations.
x+y=20
3x-3y+30
which values of x and y satisfy this system of equations?
x = 0, y = 20
x = 5, y = 15
x = 10, y = 0
x = 15, y = 5

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.

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5