Examples 9/10
Table of Currency Exchange Rates (03/2009)
Currency
Dollars per Foreign Foreign per Dollar
British pound
1.414
0.7072
Canadian dollar 0.7834
1.277
European Euro
1.256
0.7965
Japanese yen
0.01007
99.34
Mexican peso
0.06584
15.19
1. At a French department store, the price of a pair of jeans is 45 euros. What is the
price in U.S. dollars?
2. A gas station in Canada sells gasoline for 1.10 Canadian dollars per liter. The other
gas station in the States sells gasoline for 2.89 U.S. dollars per gallon. Which one is
cheaper? (1 gal= 3.785 L)
3. A car is traveling 25 miles every half-hour. How fast is it going?
4. The Greenland ice sheet contains about 3 million cubic kilometers of ice. If completely
melted, this ice would release about 2.5 million cubic kilometers of water,which would
spread out over Earth’s 340 million square kilometers of ocean surface. How much
would sea level rise?
5. You are a grader for a math course. An exam question reads:“Eli purchased 5 pounds
of apples at a price of 50 cents per pound. How much did he pay for the apples? ” On
the paper you are grading, a student has written:“50 ÷ 5 = 10. He paid 10 cents.”
Write a note to the student explaining what went wrong.
Prefix
deci
centi
milli
micro
nano
pico
Common Metric Prefixes
Abbrev. Value Prefix Abbrev.
d
10−1
deca
da
c
10−2
hecto
h
−3
m
10
kilo
k
−6
µ
10
mega
M
giga
G
N
10−9
−12
P
10
tera
T
Value
101
102
103
106
109
1012
6. Average human body temperature is 98.6◦ F. What is it in Celsius and Kelvin?