selahiwilliams selahiwilliams

10-12-2017
Mathematics

contestada

Ella simplifies (4b+4r)+(-2b-r) and says the result is b + 5r. What error did Ella make?

Respuesta :

valeriazapata200 valeriazapata200

10-12-2017

4b+4r-2b-r

4b-2b+4r-r

2b+3r

the mistake was that she add the 2 with 3 and got b+5r

Answer Link

dvikhan dvikhan

08-07-2018

Ella incorrectly combined the r coefficients. The correctly simplified expression is b + 3r

Answer Link

Otras preguntas

What is the domain of the following relation? {(a, b), (b, c), (c, a), (a, c), (c, d)}

He glanced the old flag met his sight what do the action words in this sentence tell the reader?

What is 2/3 divided by 4??

(x^3+6x^2+8x-3) (x-3)^-1

If the sequence of bases in one strand of dna is attcgac, what will be the base sequence on the strand that is formed during replication?

3.85 g of an unknown gas at 31 °C and 1.00 atm is stored in a 1.15-L flask. what is the density?

Sentence structure explain me in detail

Does the PLANT CELL have a NUCLEOLUS? A. Yes B. No

Order from greatest to least 10.9, 10 2/5, 10 1/4

The Art of Getting the greatest benefits from limited Financial Resources is called