Final answer:
To find out how many pounds 1 US dollar is, divide the total pounds by the total dollars. It turns out that 1 US dollar is equal to 0.72 British pounds.
Step-by-step explanation:
To find out how many pounds are equal to 1 US dollar, we can use the given exchange rate. According to the information provided, 20 US dollars are equal to 14.4 pounds. To find out how many pounds are equal to 1 US dollar, we can divide 14.4 pounds by 20 US dollars.
If 20 US dollars are equal to 14.4 British pounds, to find out how many pounds are equivalent to 1 US dollar, we can set up a unit rate by dividing the number of pounds by the number of dollars.
So the calculation would be:
14.4 pounds ÷ 20 dollars = 0.72 pounds/dollar
Therefore, 1 US dollar is equal to 0.72 British pounds.