The exchange rate between pounds Sterling () and US Dollars ($) is given as 1 = $1.25.
Question:
The exchange rate between pounds Sterling (£) and US Dollars ($) is given as £1 = $1.25.
a. Using the number of dollars as D and the number of pounds as P, write a formula linking P and D.
D = 1.25P
b. Complete the table of results below to convert Pounds to Dollars.
c. Plot a graph of D against P for the table of values in part (b).
d. Use your graph to find an approximate value for the amount of US Dollars you would receive if you exchanged £17.00.
From the graph £17 ≈ $21.20
Transcribed Image Text:
PD 0 1 5 10 20 P D 0 0 1 1.25 5 6.25 10 12.50 20 25
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Cambridge Checkpoint Lower Secondary Mathematics Student's Book 7
ISBN: 9781398301948
3rd Edition
Authors: Frankie Pimentel, Ric Pimentel, Terry Wall
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