Writing And Evaluating Scientific Notation Worksheet Page 11
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1530. The unit conversion between meters and yards is 1 yard = 0.9144 meters, so the area
2
of one square yard is 0.83612736m
.
2
A) Since the area of a square meter is 1m
, the difference between the two is
2
0.16387264m
B) To find the percent, divide the difference by the smaller area and multiply
2
2
by 100: 0.16387264m
/0.83612736m
= 0.1959900463*100 = about 19.6%.
So the bigger panel is close to 20% larger than the smaller panel!!
31. The final bill is $47.54. A tip for excellent service is between $7.01 and $9.35.
I listed everything eaten and what they cost and added it up. I made a second list of
the costs of things that were not Irish or green and added it up. The Irish Dinner,
green milk, green grasshopper pie, green key lime pie, Irish potatoes, and soda bread
were Irish or green.
Food bill
Taxed
Lisa
Irish dinner
$8.50
milk
$1.50
gr. pie
$3.00
coffee
$1.50
$1.50
Frank
Irish dinner
$8.50
iced tea
$1.25
$1.25
key lime pie
$3.00
T.J.
milk
$1.50
Irish potatoes
$1.75
Moira
soda bread
$1.50
cheeseburger
$5.75
$5.75
French fries
$2.25
$2.25
cranb. juice
$2.25
$2.25
choc. pie
$3.00
$3.00
coffee
$1.50
$1.50
______
______
$46.75
$17.50
The food bill totaled $46.75 and the taxed items totaled $17.50. The tax was .045 x
$17.50 = .7875 or $0.79 rounded. The final bill was $46.75 + $0.79 = $47.54.
Tip calculation
.15 x $46.75 = 7.0125 or $7.01 rounded.
.20 x $46.75 = $9.35
32. There are many possible solutions depending on the assumptions that students make,
but while the mother is alive dental floss should cost nothing or only a few cents
(depending on whether or not she has her teeth flossed the days she goes to the
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