On a trip to Italy, Mrs Chandler traded her dollars for euros. The graph of the exchange rate is shown.
Based on the graph, what is the unit rate of euros per dollar?
A. 0.56 euros per dollar
B. 0.90 euros per dollar
C. 1.80 euros per dollar
D. 1.11 euros per dollar
To find the unit rate of euros per dollar, we need to find the reciprocal of the exchange rate shown on the graph. Looking at the graph, we can see that 1 dollar is equivalent to approximately 0.9 euros. Therefore, the unit rate of euros per dollar is 1/0.9 = 1.11 euros per dollar.
Answer: D. 1.11 euros per dollar