hdfysdjsfu1235 hdfysdjsfu1235
  • 02-06-2018
  • Mathematics
contestada

One year ago liz was three times as old as her brother jack. in two years she'll be only twice as old as jack. how old are liz and jack now?

Respuesta :

a3541649783 a3541649783
  • 02-06-2018
now she is x,one year ago,she is x-1,he is 1/3(x-1),in two years,she is x+2,he is 1/2(x+2)
we can get
1/3(x-1)+3=1/2(x+2)
x=10
Answer Link

Otras preguntas

A una granja llegaron 54 ovejas 24 vacas 30 cerdos los cuales se quieren repartir en corrales con igual numero de animales de forma que haya la mayor cantidad p
The Spanish translation for "I'll do it right away" is: A. Ya está bien. B. Ya lo haré. C. Ya lo creo. D. Ya lo hice.
*provide details with your answer if its NECESSARY. * What is the perimeter of this triangle?
nth term of this sequence 1, 10, 19, 28
Which expression represents a factorization of 32m + 56mp?A. 8(4m +7p)B. 8(4 + 7)mpC. 8p(4 + 7m)D. 8m(4 + 7p)​
how does increase in temperature disturb water cycle ?
3. In the diagram, PQTU is a parallelogram with aperimeter of 24 cm and an area of 28 cm². Given thatUTS and PQR are straight lines, find the area of thewhole d
Find the product : 2p (4p² + 5p + 7)
Find SP when CP=Rs.400 and proft%=4%
What is the median of the following numbers? 1,2,10,6,4,4,6,3,1,4