Concept explainers
(a)
To find:The ratio of cat’s mass to its heart rate and express the ratio as a fraction.
(a)
Answer to Problem 25IP
The ratio of cat’s mass to its heart rate is 2000 g : 150 beats/min and it can be expressed as
Explanation of Solution
Given information:
The animals and their heart rate and mass are given in the below table.
Animal | Heart rate (beats/min) | Mass (g) |
Cat | 150 | 2000 |
Cow | 65 | 800,000 |
Hamster | 450 | 60 |
Horse | 44 | 1,200,000 |
Calculation:
From the table, the mass of cat is 2000 grams and hear rate is 150 beats per minute.
Write the ratio of cat’s mass to its heart rate.
The GCF is 50.
Simplify the fraction by dividing the numerator and denominator by GCF.
Therefore, the ratio of cat’s mass to its heart rate is 2000 g : 150 beats/min and it can be expressed as
(b)
To find:The order of animals mass to heart rate from greatest to least.
(b)
Answer to Problem 25IP
The order of animals mass to heart rate from greatest to least are horse, cow, cat and hamster.
Explanation of Solution
Given information:
The animals and their heart rate and mass are given in the below table.
Animal | Heart rate (beats/min) | Mass (g) |
Cat | 150 | 2000 |
Cow | 65 | 800,000 |
Hamster | 450 | 60 |
Horse | 44 | 1,200,000 |
Calculation:
From the table, the mass of cat is 2000 grams and hear rate is 150 beats per minute.
Write the ratio of cat’s mass to its heart rate.
The GCF is 50.
Simplify the fraction by dividing the numerator and denominator by GCF.
The mass of cow is 800,000 grams and hear rate is 65 beats per minute.
Write the ratio of cow’s mass to its heart rate.
The GCF is 5.
Simplify the fraction by dividing the numerator and denominator by GCF.
The mass of hamster is 60 grams and hear rate is 450 beats per minute.
Write the ratio of hamster’s mass to its heart rate.
The GCF is 30.
Simplify the fraction by dividing the numerator and denominator by GCF.
The mass of horse is 1,200,000 grams and hear rate is 44 beats per minute.
Write the ratio of horse’s mass to its heart rate.
The GCF is 30.
Simplify the fraction by dividing the numerator and denominator by GCF.
Therefore, theorder of animals mass to heart rate from greatest to least are horse, cow, cat and hamster.
(c)
To find:The name of the animal that has greatest ratio.
(c)
Answer to Problem 25IP
Horse has greatest ratio.
Explanation of Solution
Given information:
The animals and their heart rate and mass are given in the below table.
Animal | Heart rate (beats/min) | Mass (g) |
Cat | 150 | 2000 |
Cow | 65 | 800,000 |
Hamster | 450 | 60 |
Horse | 44 | 1,200,000 |
Calculation:
In part (b), the ratio of horse’s mass to its heart rate is
Therefore, Horse has greatest ratio.
Chapter 5 Solutions
Glencoe Math Accelerated, Student Edition
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