colemansanti colemansanti
  • 02-10-2020
  • Mathematics
contestada

Andrew is 61 years. Erica is 31 years old. how many years ago was Andrew’s age 4 times Erica’s age

Respuesta :

Аноним Аноним
  • 02-10-2020

Answer:

21 Years Ago

Step-by-step explanation:

61 - 21 = 40

31 - 21 = 10

40/10 = 4

Answer Link

Otras preguntas

What is the probability that when a coin is flipped six times in a row, it lands heads up every time?
How many sides for a polygons whose interior angle sum is 5400
Question#1 Please simplify.. 6x+5(x-2) 3x-5-x+9 With steps... it's urgent... Fyi I am in 7th grade, please don't do with complicated steps! Question#2 if a= -1
Can somebody please help me with this problem:Mark has 312 books in his bookcases.He has 11 times as many fiction books as nonfiction books.How many fiction boo
What percentage of a sample original radioactive remains after 5 half-lives?
8. Tell whether the slope from A to B is parallel, perpendicular, or neither to the slope from C to D. Be Sure to Show the slope for both in your answer. A(-3,2
what is the difference between lycopodium and equisetum
Max weber's thesis on the protestant work ethic and the spirit of capitalism highlighted the importance of what factor in the process of social change?
Can you please help me with a and b
How is StartRoot 11 ​classified? is it real and rational? or is it real and irrational? or its not a real number?