Here we have , The 6th grade science teacher gives a test every 12 days and the math teacher gives a test every 9 days. Today, both the science and math are giving tests. We need to find In how many days will the science and math teachers both give tests on the same day again . Let's find out:

It's given that science teacher gives a test every 12 days and the math teacher gives a test every 9 days . In order to find the number of days after which they'll give test at same day , we will find LCM of 12 & 9 . i.e.

⇒ $12(1)=12\\12(2)=24\\12(3)=36$ and ,

⇒ $9(1)=9\\9(2)=18\\9(3)=27\\9(4)=36$

Hence , LCM of 12 and 9 is 36 . Therefore , In 36 days will the science and math teachers both give tests on the same day again.

4 0

4 years ago

. Ms. Ache is paid $1300 per week but is fined $100 each day she is late to work. Ms. Ache wants to make at least $3,000 over th

DerKrebs [107]

Answer:

1250(3) = 3750

3750 - 100d ≥ 3000

-100d ≥ -750

d ≤ 7.5

She can miss no more than 7 days to make $3000.

Step-by-step explanation:

5 0

4 years ago