sgreenfield90 sgreenfield90

23-11-2017
Mathematics

contestada

ray is 23 years older than his sister Carol. in 20 years he will be twice as old as Carol. how old is each of them now?

Respuesta :

Аноним Аноним

23-11-2017

r = c+23

r+20 = 2(c+20)
(c+23)+20 = 2(c+20)
c+43 = 2c+40
c = 3 : r = c+23 = 26

Carol is 3 years of age, and Ray is 26 years of age.

Answer Link

23-11-2017

Ray is going to be 86 and Carol is 43.
23+20=43 x 2=86
86/2=43

Answer Link

Otras preguntas

35$ soccer cleats marked up 95%

How do european nations compare to the u.s. in terms of number of slaves and timelines for banishment of slavery?

19. Which of the following accurately describes a characteristic of fungi?A. Parasitic fungi are responsible for helpful benefits to plants. B. Parasitic fungi

Which of the following would increase friction? A. Water B. Motor oil C. Sand D. Soap

Write a word problem whose solution is |-70| = 70.

I have 2 questions: Sulfur has an atomic number of 16 and belongs in Group 6 on the periodic table. Calcium has an atomic number of 20 and belongs in Group 2 o

Which item is responsible for joining nucleotides to build a new strand of DNA? A. Nitrogenous bases B. Telomere C. DNA polymerase D. Hydrogen-bond breaking

multiply to find an equivalent fraction 1/2equal

2.95 notebook with 5% tax

Words for signals are important clues to text purpose and content. a. True b. False