geebahsando geebahsando
  • 18-01-2022
  • Mathematics
contestada

solve the system of equations. 2 burger and 5 hotdogs for $12.75 total and 3 burger and 2 hotdogs for $12.25 total?

Respuesta :

keencar18
keencar18 keencar18
  • 18-01-2022

Lets define the variables

x - burger

y - hotdogs

Now lets write our equation

2x+5y=12.75

3x+2y=12.25

Now we solve by subsitution or elimination.

2x+5y=12.75

0.4x+y=2.55

y=-0.4x+2.55

3x+2(-0.4x+2.55)=12.25

3x-0.8x+5.1=12.25

2.2x=7.15

x=3.25

Plug in X

3(3.25)+2y=12.25

9.75+2y=12.25

2y=2.5

y=1.25

Your final answer is 3.25, 1.25

Plug it in to check!

Answer Link

Otras preguntas

Scientists best apply critical thinking in their work through _______. a. the scientific method b. observation c. hypotheses d. experimentation
what nation started world war 1, and what two nations escalated the conflict
594 7/25 + 89 37/100= please help with this math problem
Why did congress need to form a "real" army
Why did Spanish leaders want to push Spanish control into North America in the mid-1500's?
what term is used to describe limiting the federal government to the constitutional
What formal mean in a sentence?
At what points during the year are fish—which need a large amount of dissolved oxygen—most likely to be evenly distributed throughout the water of a lake that f
Ignoring a conflict is a sign of _____. escalation and intensity weakness and intimidation isolation and confusion self-confidence and maturity
what is the adjectives tu trouves le magasin chic