en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

The product of two consecutive positive integers is 20. Find the value of the lesser integer.

Solution

The product of two consecutive positive integers is 20. Find the value of the lesser integer.

Solution

The smallest number : 4

Solution steps

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 20

Solve

x (x + 1) = 20 : x = 4, x = - 5

Select positive solutions:

4

x + 1 = 4 + 1 = 5

Select the smallest solution:

4

The smallest number : 4

Popular Examples

Lydia invested 83,000 in an account paying an interest rate of 6.7% compounded monthly. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach 210,100?2 years ago, Owen won some money in the lottery and put it in a bank account that earns 15% interest compounded annually. If Owen currently has 400.00 in the bank account, how much interest has he earned?The radius of a circle is 5 in. Find its area in terms of pipi.Determine the simple interest for this loan-round your answer to the nearest cent:330.56 at 4.57% for 29 years.Jeffrey opened a savings account and deposited 100.00 as principal. The account earns 6% interest, compounded monthly. How much interest will he earn after 3 years?