Carolyn was asked to solve the following system of equations. Her work is shown.
Problem:
3x...
Mathematics, 07.05.2021 19:20 lusciousl
Carolyn was asked to solve the following system of equations. Her work is shown.
Problem:
3x - 2y = 7
y = x + 2
Carolyn's Work:
3x - 2(x+2) = 7
3x - 2x + 4 = 7
x + 4 = 7
X = 3
y = x + 2
y = 3 + 2
y = 5
(3,5)
What error did Carolyn make?
O A. Carolyn did not subtract 4 from both sides of the equation.
O B. Carolyn did not substitute 3 for x to find the value of y for the solution.
O C. Carolyn did not distribute the -2 to both terms.
O D. Carolyn did not substitute x + 2 for y.
Answers: 1
Mathematics, 21.06.2019 18:30
If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.
Answers: 1
Mathematics, 22.06.2019 01:00
Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?
Answers: 2
Mathematics, 22.06.2019 01:00
Pentagon abcde is dilated according to the rule do,3(x,y) to create the image pentagon a'b'c'd'e', which is shown on the graph. what are the coordinates of point a of the pre-image? a) (-1, 1)b) (-1, 2)c) (-9, 6)d) (-9, 18)
Answers: 3
English, 15.07.2019 04:00
Chemistry, 15.07.2019 04:00
Social Studies, 15.07.2019 04:00
Geography, 15.07.2019 04:00
Social Studies, 15.07.2019 04:00
Biology, 15.07.2019 04:00
Mathematics, 15.07.2019 04:00
Mathematics, 15.07.2019 04:00
Mathematics, 15.07.2019 04:00