. DENTAL HYGIENE You are packing
your suitcase to go away to a 14-day
summer camp. The store...
Mathematics, 06.01.2021 06:10, randyg0531
. DENTAL HYGIENE You are packing
your suitcase to go away to a 14-day
summer camp. The store carries three
sizes of tubes of toothpaste.
Tube
A
Size
Ounces)
0.75
0.9
3.0
Size
(grams
21.26
25.52
85.04
B
С
Source: National Academy of Sciences
a. The function n = 21.26 – 0.86
represents the number of remaining
brushings n using b grams per
brushing using Tube A. Find the zero
of this function. Describe what this
value means in this context.
b. The function n = 25.52 – 0.86
represents the number of remaining
brushings n using b grams per
brushing using Tube B. Find the zero
of this function. Describe what this
value means in this context.
c. Write a function to represent the
number of remaining brushings
ni using b grams per brushing using
Tube C. Find the zero of this function.
Describe what this value means in
this context.
Answers: 2
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