Chapter 5.1, Problem 10E

### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Chapter
Section

### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

# In Exercises 5 to 14, find the value of x in each proportion. a) x + 1 3 = 10 x + 2 b) x − 2 5 = 12 x + 2

To determine

a) To find:

The value of x in the given proportion.

Explanation

According to Means-Extremes Property, in a proportion, the product of the means equals the product of the extremes.

Calculation:

Consider, x+13=10x+2

Apply means-extremes property of proportion in x+13=10x+2.

(x+1)(x+2)=3â‹…10â‡’x2+x+2x+2=30â‡’x2+3x+2=30â‡’x2+3x+2âˆ’30=0

To determine

b) To find:

The value of x in the given proportion.

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