To find the number of hours Gary worked, we can divide the amount he made by his hourly rate.
Hours worked = Amount made / Hourly rate
Hours worked = $310.42 / $7.48
Hours worked = 41.4
Therefore, Gary worked approximately 41.4 hours.
Gary makes $7.48 an hour. he made $310.42 last week. how many hours did he work?
5 answers
is 27 prime or composite
27 is a composite number. It is divisible by 1, 3, 9, and 27.
use the ladder methad to find the lmc of12 and 28
To find the least common multiple (LCM) of 12 and 28 using the ladder method, follow these steps:
1. Write the two numbers, 12 and 28, on the left side of the ladder.
2. Start by factoring each number into its prime factors.
- The prime factorization of 12 is 2^2 * 3.
- The prime factorization of 28 is 2^2 * 7.
3. Write the common and uncommon factors on the rungs of the ladder.
____
2 | 12 <--- 2 is a common factor
2 | 6 <--- 2 is a common factor
3 | 3 <--- 3 is a common factor
4. Multiply the numbers on the right side of the ladder to get the LCM.
LCM of 12 and 28 = 2 * 2 * 3 * 7 = 84.
Therefore, the LCM of 12 and 28 is 84.
1. Write the two numbers, 12 and 28, on the left side of the ladder.
2. Start by factoring each number into its prime factors.
- The prime factorization of 12 is 2^2 * 3.
- The prime factorization of 28 is 2^2 * 7.
3. Write the common and uncommon factors on the rungs of the ladder.
____
2 | 12 <--- 2 is a common factor
2 | 6 <--- 2 is a common factor
3 | 3 <--- 3 is a common factor
4. Multiply the numbers on the right side of the ladder to get the LCM.
LCM of 12 and 28 = 2 * 2 * 3 * 7 = 84.
Therefore, the LCM of 12 and 28 is 84.