Ernesto tried to determine the solution for the system of equations using substitution. his work is shown below.
x _ y = 7
3x _ 2y = 8
step 1: x = y + 7
step 2: 3(y + 7) _ 2y = 8
step 3: 3y + 7 _ 2y = 8
step 4: y + 7 = 8
step 5: y = 1
in which step did ernesto make the first error?
step 1
step 2
step 3
step 4

Write each fraction as an equivalent fraction with a denominator of 120then write the original fractions in order from samllest to largest

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

How do you find the circumfrance of a circle?