adrigie4cze adrigie4cze

01-10-2016
Mathematics

contestada

Today, the sum of the ages of Bea and her sister is 18. What would be the sum of their ages next year?

Respuesta :

01-10-2016

Hello,

Let's assume a the age of Bea
b the age of her sister

This year: a+b=18

Next year (a+1)+(b+1)=(a+b)+(1+1)=(a+b)+2=18+2=20

Answer Link

apologiabiology apologiabiology

01-10-2016

b=bea's age

sister+b=18
next years, both grew 1
sister+1+b+1=18+1+1=20

sum is 20

Answer Link

Otras preguntas

Use the given information to find the measures of all angles formed by parallel lines a and b, and transversal m. b One angle is 25° greater than another. Plz H

If mass of the planet is 10% less than that of the earth and radius of the planet is 20% greater than that of the earth then the weight of 40kg person on that p

Cash received from customers includes all $139,000 of the accounts receivable that were outstanding at November 30, 2017. Accounts receivable at December 31, 20

help me out please need this

10 openers and rejoinders in Spanish

Show that a light ray that strikes two mutually perpendicular reflecting surfaces is reflected back exactly parallel to the direction from which it came.

Explain how biodiversity contributes to maintaining different life form on earth

Use the substitution method to solve the system of equations. choose the correct ordered pair.

Why does the neighbor say that “good fences make good neighbours” in "Mending Wall"?

Pregnancy is a life-changing event. Sexually transmitted diseases (STDs) – and there are now more than 20 – can rob you of your health and even your life. Con