Conversions
One kilometer is __ meters
1,000 meters
Name the equation to find speed
Speed = Distance / Time
What is 15% of 337?
50.55
State the number of significant digits of the following number.
0.00018
2 significant digits
You purchase a shirt with a labeled (pre-tax) price of $17. The local sales tax rate is 5%. What is your final cost (including tax)?
$17.85
Convert 2.5 hours to seconds
9,000s
The _____ describes the the actual increase or decrease from a reference value to a new value
Absolute Change
If 324 students are males out of the 600 students. What percentage of the students are female?
46% of the students are female
State the number of significant digits and the implied precision of the following number.
3.32234
6 significant digits
Implied precision: Hundred-Thousandths or 0.00001
Your receipt shows that you paid $19.26 for a Blue-ray disc, tax included. The local sales tax rate is 7%. What was the labeled (pre-tax) price of the disc?
Final cost = (final cost/107%) = $18.00
A new sidewalk will be 4 feet wide, 200 feet long, and filled to a depth of 6 inches (0.5 foot) with concrete. How many cubic yards of concrete are needed? (Round to the nearest tenth)
14.8 yd3
The placeholder of the last significant digit is called ___.
Implied Precision
A store is having a 40% off sale. The sale price for a scooter that cost $80 is ___.
$48
Carry out the indicated operation and give your answer with the specified number of significant digits.
231.89 / 0.034 ; 2 significant digits
6,800
Your receipt shows that you paid $47.96 for a new shirt, including sales tax. The sales tax is 9%. The amount you paid in sales tax was ___.
$3.96
Find the area in square feet of a rectangular yard that measures 20 yards by 12 yards.
Name the equation one uses to find the relative change
Relative change = ((New Value - Relative Value) / (Relative Value)) x 100
The amounts of deaths due to poisoning in the United States in 2009 (39,000) is ___ percent greater than the number of deaths due to falls (26,100). (round to the nearest tenth)
49.4% more
Carry out the indicated operation and give your answer with the specified number of significant digits.
(2.3 x 105) x (7.963 x 10-3) ; 6 significant digits
1.83149 x 103 or 1,831.49
You purchase a bicycle with a retail price of $760. The local sales tax rate is 7.6%. What is the final cost?
$817.76
Gasoline sells for 1.5 euros/liter in Bonn. What is the price in U.S. dollars per gallon?
$7.49 per gallon
Random Errors: Occurs because of random and inherently unpredictable events in the measurement process
Systematic Errors: Occurs when there is a problem in the measurement system that affects all measurements in the same way, such as making them all too low or too high by the same amount
The population of a town increases from 50,000 to 75,000. What are the absolute and relative changes in the population?
Absolute change = 25,000
Relative change = 50%
Carry out the indicated operation and give your answer with the specified number of significant digits.
(6.667 x 103) x (8.9421 x 10-2) ; 4 significant digits
5.961 x 102 or 596.1
The sweater shack is offering a 20% discount on sweaters. If the regular price of a sweater is $15, what is the discount? What is the sale price?
Discount = $3
Sale Price = $12