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

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

Multiplication two digits by two digits 73x45

true or false, and explain: (a) If a die is rolled three times, the chance of getting at least one ace is 1/6 + 1/6 + 1/6 = 1/2. (b) If a coin is tossed twice,

Plzzz help with 14 :))

2x^5+7x^4-18x^2-8x+8 find zeros

From where do green plants get energy(a air(b soil(crater (d glucose

Which correctly describes the current gender gap in voter turnout? a. the difference between those who register to vote, but do not cast ballots. b. the numbe

A (n) ____ is one of earth’s major land ecosystems with its own characteristic Animals, plants, soil, and climate

Unit 8 – Lesson 8 – PortfolioPart B: Complete the forms of the verb ir –to go. Use the conjugation chart in the lesson for your reference.1. Yo -_____2. Ella -_

Let D be the region bounded below by the plane zequals=0, above by the sphere x squared plus y squared plus z squared equals 900x2+y2+z2=900, and on the sides

solve the equation y=11.3x + 13.8 estimates the amount that businesses will spend, in billion of dollars on a certain business technology where x is the number