nyjarieusherp4lxcc nyjarieusherp4lxcc
  • 02-03-2018
  • Mathematics
contestada

Which expression is equivalent to 2 3 (3x + 9y) + 1 2 (4x - 2y)? A) x + 4y B) 8x - y C) 4x + 5y D) 2x + 5y

Respuesta :

MsEHolt MsEHolt
  • 28-03-2018
The correct answer is C) 4x + 5y.

We use the Distributive Property on both parts of this:

2/3(3x + 9y) + 1/2(4x - 2y)
= 2/3(3x) + 2/3(9y) + 1/2(4x) - 1/2(2y)
= 6/3x + 18/3y + 4/2x - 2/2y
= 2x + 6y + 2x - 1y

Combine like terms and we have:
4x + 5y
Answer Link
midiou midiou
  • 28-03-2018
the correct answer is c 


Answer Link

Otras preguntas

What's the word for wandering about; tending to move around, travel
If X is the set of negative numbers and Y is the set of positive numbers, then the union of X and Y and 0 is the set of (A) all real numbers (B) all integers (C
Molecular scientists can read the DNA code and compare the DNA of different organisms. This concept is used in molecular clocks to determine which of the follow
What's the other term for: lacking respect; scornful
What's the other word stubborn; inflexible
How do we use the Pythagoras theorem in "everyday life".
A sound wave of 70 cm travels 840 m in 2.5 sec. What is the velocity and frequency of sound?
Choose the more precise measurement in the pair.  A .) 6.7 mi or  B.) 6 mi
What's the other term for: lacking respect; scornful
What is the highest mountain on each continent?