Question

Gary makes $7.48 an hour. he made $310.42 last week. how many hours did he work?

Answer 1

is 27 prime or composite

Answer 2

use the ladder methad to find the lmc of12 and 28

Answer 3

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.

Answer 4

27 is a composite number. It is divisible by 1, 3, 9, and 27.

Answer 5

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.