sameakamou5wf8
sameakamou5wf8 sameakamou5wf8
  • 04-08-2017
  • Mathematics
contestada

Devaughn's age is two times Sydney's age. The sum of their ages is 30

. What is Sydney's age?

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 04-08-2017

D=2S

D+ S = 30

2s+S = 30

3S=30

S=30/3 = 10

Sydney is 10

Devaughn is 2*10 = 20

Answer Link

Otras preguntas

Words, phrases, and sentences that provide a smooth flow from one idea to the next are called
Sabina had 40$. She paid d dollars for lunch and 0.5d dollars for a snack. Which expression represents the amount of money Sabina has left? A. 40 + 1.5d B. 40 x
This is an individuals mental or moral quality
Make r the subject of the formula A=pie r squared
Show an equation and a solution for the problem. Arnold needs a 25% solution of nitric acid. He has 20 milliliters (ml) of a 30% solution. How many ml of a 15%
What is different about parasitism compared to the other biological relationships such as mutualism, predation, competition, and commensalism? A.) parasitic org
20 is what percent of 40 show ur work
If a cell is placed in salt water ,water leavesthe cell by what kind of transportation
solve the system of equation y=1/2x-2 and 3x+y=5
Many ancient civilizations believed that dreams were __________.