Application
Most math problems that you will encounter in the workplace do not come written with the appropriate operator (+. -, ÷, or x) in place. As an employee you will need to decode the real life problem into an algorithm. Words used that typically indicate multiplication are:
PRODUCT
MULTIPLIED
TIMES
DOUBLE
TRIPLE
OF
Example 1:
A mechanic cuts 12 pieces of copper tubing from a coil. Each piece is 37 7/16 inches long. What is the total length used?
PRODUCT
MULTIPLIED
TIMES
DOUBLE
TRIPLE
OF
Example 1:
A mechanic cuts 12 pieces of copper tubing from a coil. Each piece is 37 7/16 inches long. What is the total length used?
Strategy: Multiply the number of pieces times the length of each piece of tubing. Convert the mixed number to an improper fraction and write the whole number as a fraction with a denominator of 1. Write 12 and 16 as a product of prime factors to help with simplifying the answer. Eliminate like factors then multiply. Write as a mixed number. Don't forget to add the units. |
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Example 2:
A paint company buys a drying chamber and an air compressor for spray painting. The total cost of the two items is $60,000. The drying chamber's cost is 4/5 of the total cost. What is the cost of the drying chamber? What is the cost of the air compressor?
A paint company buys a drying chamber and an air compressor for spray painting. The total cost of the two items is $60,000. The drying chamber's cost is 4/5 of the total cost. What is the cost of the drying chamber? What is the cost of the air compressor?