L13: Common Factors & Word Problems
List all the common factors of 12 and 30.
1, 2, 3, 6
Which number in the fraction 3/4 is the numerator, and which is the denominator?
Numerator = 3
Denominator = 4
Write as a decimal number: 1/3
0.3 (3 repeating)
Simplify: 2^6
64
Find the greatest common factor of 18 and 60.
6
Expand the fraction 3/4 so the denominator is 24.
18/24
Write as a decimal number: 1/12
0.083 (3 repeating)
Write 288 as a product of prime numbers using exponents.
2^5 x 3^2
Inflation caused the price of everything to increase. The price of an item after inflation was 4 times the price before inflation. If an item cost $5.67 before inflation, what did it cost after inflation?
$22.68
Write the number 3 as a fraction with a denominator of 18.
54/18
3/5
Write 1080 as a product of prime numbers using exponents.
2^3 x 3^3 x 5
The pinball wizard set a new record on a pinball machine. Her new record score was 57 times the previous high score of 79,864 points. What was her new score?
4,552,248 points
113 x 0.009
1.017
Write as a decimal: 5/9
0.5 (5 repeating)
Write 3420 as a product of prime numbers using exponents.
2^3 x 3^4 x 5
If 121 pounds of beans fit in one bag, how many bags are needed to hold 26,000 pounds of beans?
215 bags
2.14 x 11.6
24.824
Write as a decimal: 1/20
0.05
Write 7056 as a product of prime numbers using exponents.
2^4 x 3^2 x 7^2
A student earned a 38 percent on a math test. If he studied hard and earned a score that was 2.53 times better on the next test, what score did he earn?
96.14 percent
613.15/3.1
197.79
Divide. Round to two decimals.
7.81 / 3.1
2.52
Write 10,800 as a product of prime numbers using exponents.
2^4 x 3^3 x 5^2