   Chapter 5.II, Problem 20RE ### Contemporary Mathematics for Busin...

8th Edition
Robert Brechner + 1 other
ISBN: 9781305585447

#### Solutions

Chapter
Section ### Contemporary Mathematics for Busin...

8th Edition
Robert Brechner + 1 other
ISBN: 9781305585447
Textbook Problem

# Use ratio and proportion to solve the following business situations.If a bulk order of 1,600 blouses costs $41,600, how much would 2,000 blouses cost? To determine To calculate: The cost of 2,000 blouses, if the cost of 1,600 blouses is$41,600.

Explanation

Given Information:

The cost of 1,600 blouses is $41,600. Formula used: Cross multiplication method: To solve the proportional problem by using cross multiplication, follow the steps as mentioned below. Step 1: Represent the unknowns by a letter. Step 2: Set the proportion with one ratio, expressed as a fraction on both side of the equal sign. Step 3: Multiply numerator of the left side ratio with the denominatior of right side ratio and place the product on one side of the equal sign. Step 4: Multiply denominatior of the left side ratio with the nominatior of right side ratio and place the product on other side of the equal sign. The step 3 and 4 together is called as cross multiplication. Step5: Solve for the unknown value. Calculation: Consider the cost of 1,600 blouses,$41,600.

Suppose that X be the cost of 2,000 blouses.

The proportion can be written as \$41,600 is to 1,600 blouses equals X is to 2,000 blouses,

41,6001,600=X2,000

Apply cross multiplication, this gives,

(41,600)2000=(1,600)X83,200,000=1,600X

Or, it can be written as:

1600X=41,600

This equation represents that X is multiplied by 1,600

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