The work of a student to solve a set of equations is shown below:
Equation 1: x + 2y = 10
Equ...
Mathematics, 22.01.2021 07:50 ezellcarly
The work of a student to solve a set of equations is shown below:
Equation 1: x + 2y = 10
Equation 2: 2x + 5y = 15
Step 1: -2(x + 2y) = -2(10)
2x + 5y = 15
Step 2:
- 2x - 4y = -10
2x + 5y = 15
Step 3:
1y = 5
Step 4:
x + 2(1) = 10
Step 5:
X = 8
In which step did the student first make an error?
Answers: 3
Mathematics, 21.06.2019 13:30
Ily begins solving the equation 4(x – 1) – x = 3(x + 5) – 11. her work is shown below. 4(x – 1) – x = 3(x + 5) – 11 4x – 4 – x = 3x + 15 – 11 3x – 4 = 3x + 4 how can her partial solution be interpreted?
Answers: 2
Mathematics, 21.06.2019 14:50
Apair of ordinary dice is rolled. what is the probability that each die will show a number higher than 4. 1. (1/36) 2. (1/12) 3. (1/6) 4. (1/4) 5. (1/3)
Answers: 2
Mathematics, 21.06.2019 18:00
Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?
Answers: 1
Mathematics, 21.06.2019 18:30
Identify the polynomial. a2b - cd3 a.monomial b.binomial c.trinomial d.four-term polynomial e.five-term polynomial
Answers: 1
Biology, 16.11.2020 18:10
Mathematics, 16.11.2020 18:10
Chemistry, 16.11.2020 18:10
English, 16.11.2020 18:10
Mathematics, 16.11.2020 18:10
Mathematics, 16.11.2020 18:10