riosluisa118
riosluisa118 riosluisa118
  • 24-07-2021
  • Mathematics
contestada

The sum of two numbers is 10. Five times the first number plus three times the second number is 36

Respuesta :

mhanifa
mhanifa mhanifa
  • 24-07-2021

Answer:

  • 3 and 7

Step-by-step explanation:

  • a + b = 10
  • 5a + 3b = 36

5 times the first equation minus the second one:

  • 5(a + b) - 5a - 3b = 5(10) - 36
  • 2b = 14
  • b = 7

Find a:

  • a + 7 = 10
  • a = 3

Answer Link

Otras preguntas

if you were Orpheus, would you have locked back? why or why not?
what number can 13 and 7 go into?
What is 1/5 reduce to its lowest term
why weren't slave marriages considered legal
Steve grows taller each year. Is this a transitive verb or a intransitive verb?
If two parents that are heterozygous (Aa) at a single locus give rise to offspring that are 25 percent AA, 50 percent Aa, and 25 percent aa, then all of the fol
Jeanne makes hair bows to sell at the craft fair.  Each bow requires 1.5 yards of ribbon.At the fabric store, ribbon is sold by the foot.  If Jeanne wants to ma
How so I show my work with 624 Divided by 3
Find the number of solutions : 4x-2y=8 y=2x+8
How is a euglena like a plant cell? How is it like an animal cell?Like a plant cell:Like an animal cell: