yaksh235 yaksh235
  • 04-04-2019
  • Mathematics
contestada

the pair of variables x=5, y=7 is the solution to the equation ax–2y=1. Find the coefficient a.

Respuesta :

pr3tz81scut2
pr3tz81scut2 pr3tz81scut2
  • 04-04-2019

Answer:

a=3

Step-by-step explanation:

This should be very simple, just substitute xy and y for 5 and 7 respectively, so 5a-2*7=1, or 5a-14=1, or 5a=15, if we divide both sides by 5, we get a=3

Answer Link
kennethmcclure71
kennethmcclure71 kennethmcclure71
  • 05-04-2019

Answer:

A=3 5a-14=1

Step-by-step explanation:

Add 14 to both sides then divide 5 and 15 to get 3

Answer Link

Otras preguntas

Is it possible to still become a pro soccer player when you are 13
(10 7)x(8-6)-8 square
____ is the process of converting a message into a secret code and changing the encoded message back to regular text.
which function below is the inverse of f(x)= 3x+5/7
divide 33 photos into two groups so that the ratio is 4 to 7
3x-12+10=8-2x what does x equal?
why was the free coinage of silver was to weak
If the distance traveled is 14.25m, what is the average velocity?
What is the value of y when x= 2y 4x-3=0.4-2y
Solve for x. y=7x−7z−9