autumnxng13061 autumnxng13061
  • 01-01-2018
  • Mathematics
contestada

The square of sophie's age is 16 less than joanna's age. it is also the case that joanna's age is 8 times that of sophie. how old is joanna?

Respuesta :

jorel1380
jorel1380 jorel1380
  • 01-01-2018
Let s be Sophie's age. Then joanna is s²+16. Joanna is also 8s, if  Sophie is s. So:
s²+16=8s
s²-8s+16=0
(s-4)²=0
s=4
Sophie is 4; Joanna is 32
☺☺☺☺
Answer Link

Otras preguntas

"In the years between 1815 and 1848, two rival political programs appeared, reflecting rival sets of hopes. Some Americans felt largely satisfied with their soc
I need help with question 8 please
Which statement about the lawmaking process is accurate?
This pattern repeats every 5 terms. The pattern is trapezoid, square, triangle, pentagon, square. What is the 17th term of this pattern? a pattern of shapes, tr
PLEASE HELP ! what is the grand total ?
Which pair of expressions has equivalent values? 113 and 115 61 and g? 78 and 87 g2 and 43
Colors opposite on the color wheel a)Cool Colors b)Analogous c)warm colors d)Monochromatic e)Complimentary
According to crooks why does a person need a companion
What is the trend through vertebrates from fish to mammals in terms of their circulatory function?
PLZ I NEED URGENT HELP