1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
malfutka [58]
2 years ago
9

Plz help its so confusing

Mathematics
1 answer:
aleksklad [387]2 years ago
8 0

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

You might be interested in
An angle measures 2.2° less than the measure of its complementary angle. What is the measure of each angle?
Pie

Answer:

28 and 62

Step-by-step explanation:

complementary angles add up to 90o

x+(x-34) =90

2x-34=90

2x=56

x=28 (small angle)

28+34=62 (big angle)

28+62 =90

8 0
2 years ago
Select all the ordered pairs that satisfy the function: y=1/2x-1
andrew-mc [135]

Answer:

a 0,-1 d -4,-3 hope this helps

3 0
2 years ago
Please help I need an answer fast
sp2606 [1]
All you need to do is use the formula to solve. What I do is I plug in the information that I know, and then I just solve. In this case it would be: 

V= (4)
       -    pie(3.14)*4.8(cubed) 
       3 

I hope I was a good help, and if you still need help, come to my page and ask the question on specifically what you need help with. :D
5 0
3 years ago
Find the volume of the figure below.
skad [1K]
Volume\ =  \frac{4}{3} \pi r^3 =  \frac{4}{3} \times \frac{22}{7} \times 15^3 =  \boxed{14137.17\ ft^3}
8 0
2 years ago
N two years, Linda will be half as old as her mother. Her mother is 38 years old now.
Ksenya-84 [330]
I'm not sure about the formula.
But since 38/2=19
19-2=17
Linda is 17 years old.
a possible formula could be:
L=38/2-2
3 0
2 years ago
Other questions:
  • Could someone help with this?
    10·2 answers
  • Subtract 3m-4 from m-6
    7·2 answers
  • *QUICK HELP PLEASE<br><br> Which pairs of angles are adjacent? Select all that apply.
    11·1 answer
  • PLEASE HELP ME!
    6·1 answer
  • Jackson middle school has 6 students in choir for every 1 student in band. if there are 54 students in band, how many students a
    14·1 answer
  • A recent report shows that 62% of people are interested in black holes. If this number is down from the previous year by 8%, wha
    12·1 answer
  • HELP PLEASE I REALLY NEED IT I WILL GIVE YOU A BRAINLEIST
    6·2 answers
  • A) Write 7.1 x 10² as an ordinary number.
    7·2 answers
  • Which graph shows the solution to the inequality -3x-7 &lt;20?
    11·1 answer
  • PLEASE HELP WILL MARK BRAINLIEST
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!