Problem 1 A 5 cm diameter hole is drilled in a 45 cm by 24 cm flat, rectangular piece of material. a) Find the area of the rectangular piece after the circular hole is removed. b) What percent of the total area is removed from the rectangular piece?

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter10: Rounding Decimal Fractions And Equivalent Decimal And Common Fractions
Section: Chapter Questions
Problem 2A: Find the decimal value of the distance B in Figure 10-2. Note the total unit value of the line.
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Problem 1
A 5 cm diameter hole is drilled in a 45 cm by 24 cm flat, rectangular piece of material.
a) Find the area of the rectangular piece after the circular hole is removed.
b) What percent of the total area is removed from the rectangular piece?
Transcribed Image Text:Problem 1 A 5 cm diameter hole is drilled in a 45 cm by 24 cm flat, rectangular piece of material. a) Find the area of the rectangular piece after the circular hole is removed. b) What percent of the total area is removed from the rectangular piece?
Problem 2
Two identical circles of largest possible area are to be cut from a rectangular piece of stock as shown.
The piece of stock costs $12.00.
12 inches
24 inches
a) Find the amount of waste.
b) What percent of the original stock was wasted?
c) What was the material cost of each cutout circle?
Transcribed Image Text:Problem 2 Two identical circles of largest possible area are to be cut from a rectangular piece of stock as shown. The piece of stock costs $12.00. 12 inches 24 inches a) Find the amount of waste. b) What percent of the original stock was wasted? c) What was the material cost of each cutout circle?
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ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,