kayleeeann kayleeeann

04-05-2017
Mathematics

contestada

What is the value of 8 of a in the equation 5a-10b=45, when b=3

Respuesta :

Equanimity Equanimity

04-05-2017

Since B=3, we'll plug in 3 for B.
5a - 10(3) = 45.
Multiply 3 by 10 since it was "10b".
5a -30 = 45
Add 30 to each side to get 5a by itself.
5a = 75
Divide by 5 on each side.
a = 15
I hope this helps!

Answer Link

Otras preguntas

Sarah has going to work for 60 days. On 39 of those days she arrived at work before 8:30 AM. On the rest of the day she arrived after 8:30 AM. What is experimen

-3x-8y=20 -5x+y=19 substitute

How might Congressman Steve King respond to "Brutus'" statements on natural rights?

how do I solve this 2(4x^3+9m+3x^2)

Who is the most misunderstood person in history?

grain is stored in cylindrical structures called silos. which is the best estimate for the volume of a silo with a diameter of 12.3 feet and a height of 25 feet

How did expanding democracy bring Andrew Jackson to power?

Does wind have atoms and molecules in it?

Which personal pronoun correctly completes the sentence? What is its use? Because so many leaves had fallen, their parents helped __________ rake the yard. A. t

Explain why the reflection of light off ground glass changes from diffuse to specular if you spill water on it