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
stira [4]
3 years ago
13

30 students in class 1/5 absent how many students were in class

Mathematics
1 answer:
slava [35]3 years ago
3 0
6 students were in class because the 5 represents on how many groups you need to have
You might be interested in
Fill in the table what is the constant rate?
wel
| X | 1 | 2 | 4 | 5 | 10 |
| Y | 4 | 8 |16|20| 40 |
3 0
3 years ago
1.5 more than the quation of a and 4 is b
Kruka [31]
I think it is (a+4=b)+1.5
3 0
2 years ago
Read 2 more answers
Not sure need help ​
Greeley [361]
29/90 use the hint:)
6 0
3 years ago
Avery can run at 10 uph. The bank of a river is represented by the line 4x + 3y = 12, and Avery is at (7, 5). How much time does
Reil [10]
The minimum distance will be along a perpendicular line to the river that passes through the point (7,5)

4x+3y=12

3y=-4x+12

y=-4x/3+12/3

So a line perpendicular to the bank will be:

y=3x/4+b, and we need it to pass through (7,5) so

5=3(7)/4+b

5=21/4+b

20/4-21/4=b

-1/4=b so the perpendicular line is:

y=3x/4-1/4

So now we want to know the point where this perpendicular line meets with the river bank.  When it does y=y so we can say:

(3x-1)/4=(-4x+12)/3  cross multiply

3(3x-1)=4(-4x+12)

9x-3=-16x+48

25x=51

x=51/25

x=2.04

y=(3x-1)/4

y=(3*2.04-1)/4

y=1.28

So now that we know the point on the river that is closest to Avery we can calculate his distance from that point...

d^2=(x2-x1)^2+(y2-y1)^2

d^2=(7-2.04)^2+(5-1.28)^2

d^2=38.44

d=√38.44

d=6.2 units

Since he can run at 10 uph...

t=d/v

t=6.2/10

t=0.62 hours  (37 min 12 sec)

So it will take him 0.62 hours or 37 minutes and 12 seconds for him to reach the river.




8 0
2 years ago
You are designing a container in the shape of a cylinder. The radius is 6 inches. You want the container to hold at least 324π c
goldfiish [28.3K]
Answer: 9 inches

Explaination: The volume of a cylinder, V = (πr^2)H, so H = V/(πr^2).

Using the parameters you specified, H = 324π/[(π)(6^2)] = 324π/36π = 324/36 = 9 inches
4 0
3 years ago
Other questions:
  • Please help me!!!!!!!!!
    8·2 answers
  • In how many ways can the letters of the word CARPET be arranged
    5·2 answers
  • Which shape does Not stack? need help plzzzzzz its #2
    7·2 answers
  • What is the point-slopw form of the line that passes through the given point and has the given slop?
    8·1 answer
  • For small changes in temperature, the formula for the expansion of a metal rod under a change in temperature is: g-L=aL(t-T), wh
    15·1 answer
  • An Olympic
    13·1 answer
  • Find the reference angle for a rotation angle of 5pi/6 radians.
    11·1 answer
  • FInd the area of the polygon
    11·2 answers
  • Today, the price of a new cell phone is $129. In 2000, the price of a similar cell phone was $240. What is the percent of change
    13·1 answer
  • Complete each
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!