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

Help me please. Help me please
There were 350 apples on the tree in March. By September there were 420 apples on the tree. What was the percentage of change of apples on the tree? Round your
HELP WILL GIVE BRAINIEST AND 20 POINTS!!! EXPLAIN THROUGHLY AND GIVE 5-6 SENTENCES, WHY DID PEOPLE WANT/VOTE KAMALA HARRIS BECOME VICE PRESIDENT, WHAT DO THEY S
How many miles are in 10 kilometers? (1 mile = 1.609 km)
Snowstorms form when: the temperature in the upper atmosphere is too warm warm, moist air hits cool, dry air wind changes direction and speed clouds start twist
Solve for x in the diagram shown. A) 2.67 B) 4.5 C)5.625 D) 34.375
How many cells are in the human body?
If the Quarterback throws the football to a defensive player, what is that called? 1. Interception 2. Hand Off 3. Offsides
can some please help me !will mark brainliest !
Explain how the dynamics of the country shape the core and the periphery.