Register
The length of a photograph is 1 cm less than twice the width. The Area is 91 cm² find the width and length
223k views
5 votes
The length of a photograph is 1 cm less than twice the width. The Area is 91 cm² find the width and length

User Wkampmann
by
8.0k points

1 Answer

4 votes
{a*b=91
{a-1=2b

a=2b-1
(2b-1)*b=91
2b²-b-91=0
b=7 cm
other b is negative and can't be a width
a=2*7-1=13 cm
Length is 13 cm
Width is 7 cm
User Unrelativity
by
8.4k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!