en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

Bert is 5 times as old as Ernie. Nine years ago, the sum of their ages was 48. Determine both their ages now.

Solution

Bert is 5 times as old as Ernie. Nine years ago, the sum of their ages was 48. Determine both their ages now.

Solution

Ernie^{'} s age is : 11

Bert^{'} s age is : 55

Solution steps

Translate the problem into an equation:

5 x - 9 + x - 9 = 48

Solve for

x, 5 x - 9 + x - 9 = 48 : x = 11

Find age

Ernie^{'} s age is : 11

Bert^{'} s age is : 55

Popular Examples

Kelsey has 100 in an account. The interest rate is 11% compounded annually.To the nearest cent, how much will she have in 2 years?Gordon and Anita deposit 700.00 into a savings account which earns 11% interest compounded monthly. They want to use the money in the account to go on a trip in 2 years. How much will they be able to spend?Noy is twice as old as Kris. In eight years, Noy will be four years older than Kris. Find their present ages.the square of a negative number is 24 more than 5 times the number William is going to invest in an account paying an interest rate of 5.5% compounded monthly. How much would William need to invest, to the nearest hundred dollars, for the value of the account to reach 980 in 7 years?