Answer:
20, 4
Step-by-step explanation:
Let's assume total number of students registered is n
Last week n/4 people are absent
so people present are n - n/4 = <u>3n/4</u>
Today after return of Jen 1/5 n are absent
so people present are n - n/5 = 4n/5
which is also equal to last week present people + 1 (Jen)
= 3n/4 + 1
= (3n + 4) / 4
so (3n + 4) / 4 = 4n/5
=> 3n + 4 = 4n/5 * 4
=> (3n + 4) * 5 = 16n
=> 15n + 20 = 16n
=> 20 = n
=> n = 20
So total students registered for class is 20
today no of people absent = n/5 = 20/5 = 4
Answer:
4y=9x+12
Step-by-step explanation:
the answer should be that's it
The answer is y = 3
Explanation:
First, get rid of the parenthesis, by multiplying -5 and 2. Then, multiply -5 and -y. The equation is now y - 10 + 5y = 8. Next, do 5y + y, and 8 + 10. Now the equation is 6y = 18. Lastly, divide 18 by 6, and you will get y = 3.