atx3udnspn atx3udnspn

25-01-2021
Mathematics

contestada

Devon is five years younger than Sydney the sum of their ages is 57 what is Sydney

Respuesta :

usnepal0 usnepal0

25-01-2021

Answer:

Sydney is 31 years old.

Step-by-step explanation:

LET age of Devon be x years

and let age of Sydney be y years

if x=y-5-------(i)

x+y= 57 (sum)

Using (i)

(y-5)+y=57

2y=62

y=31

Answer Link

Otras preguntas

The area of a rectangular barnyard is given by the trinomial 4x2 + 8x - 21. What are the possible dimensions of the barnyard? Use factoring.

what is the 360 cubic inch cakes or fourth inches thick and any whole number length and width are possible how many different case could be made suppose that th

Why is phosphorus so essential to living organisms??

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. The tree was based on biochemical comparisons, including D

Triangle WXY, with a vertex ∠X at (3, 0), is rotated clockwise 90° about the origin. Which of the following rotations is equivalent to 90° clockwise rotation ab

There are 24 pizzas. each person gets 1/3 of a pizza. how many people can be fed from the 24 pizzas?

write a 150-200 word essay on the factors that account for germanys early success in world war 2

Use the discriminant to determine the number and type of solutions the equation has. x2 + 8x + 12 = 0 a. no real solution b. one real solution c. two rational s

how do I work out 4 + 2 x 2²

tranchulas food and what eats it please asap