Rob is asked to simplify the expression below.
10x-2(4x+6y)+3y
he states th...
Mathematics, 06.10.2019 09:30 adorsey846
Rob is asked to simplify the expression below.
10x-2(4x+6y)+3y
he states that the simplified expression is 2x+15y because using the distributive property yields 10x-8x+12y+3y, and then combining like terms yields 2x+15y.
explain the error in rob' s reasoning.
write the correct simplified expression for 10x-2(4x+6y)+3y. show your work.
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 14:00
In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?
Answers: 2
Mathematics, 21.06.2019 16:00
Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187
Answers: 1
Mathematics, 21.06.2019 17:00
The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?
Answers: 1
Mathematics, 21.06.2019 20:00
Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,
Answers: 3
You know the right answer?
Questions
History, 22.09.2019 05:50
Business, 22.09.2019 05:50
English, 22.09.2019 05:50
Health, 22.09.2019 05:50
