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
Sergio039 [100]
3 years ago
9

There’s 25 questions in a test how many question do you have to get right to get 80%

Mathematics
2 answers:
IgorC [24]3 years ago
4 0

Answer:

20

Step-by-step explanation:

25*0.80 is 20

BartSMP [9]3 years ago
3 0

Answer:

20

Step-by-step explanation:

You might be interested in
Mrs. Jones is creating a seating chart for the front row of her classroom. She has 10 possible students to place in the front ro
Lemur [1.5K]

Answer:

5 seats

Step-by-step explanation:

if I'm getting the right idea, the seats are NOT enough

since the number of arrangement of 10 people in a row is

10! = 3628800 which is a lot larger than 30240.

---------------------------------------------------------------------------------------

Let number of seats be

10PX = 30240

\frac{10!}{(10-X)!} = 30240

(10-X)! = \frac{10!}{30240}

(10-X)! = 120

(10-X)! = 5!

10-X = 5

X = 5

5 0
3 years ago
If angle 3 is 4x+1 and angle 4 is 7X+3. what are the measures of angle 3 and 4? ​
densk [106]
Answer:
3=13
4=31
Your welcome☺️
And don’t click on the links just report them bc it’s nothing but a hack
6 0
3 years ago
You have torn a tendon and are facing surgery to repair it. the surgeon explains the risks to you: the probability of infection
skad [1K]
P(most favorable outcome) = 1 -(0.03 +0.16 -0.01) = 0.82

_____
"repair fails" includes the "infection and failure" case, as does "infection". By adding the probability of "repair fails" and "infection", we count the "infection and failure" case twice. So, we have to subtract the probability of "infection and failure" from the sum of "repaire fails" and "infection" in order to count each bad outcome only once.

The probability of a good outcome is the complement of the probability of a bad outcome.
5 0
3 years ago
I need help on this onee plizzzz
nika2105 [10]
(45+20)/(42+45+20+32)
65/139
<span>46.762589928%</span>
4 0
3 years ago
Read 2 more answers
Mr wellborn arrives at work at 8:40 a.m he leaves for work 50 minutes before he arrives at what time does Mr wellborn leave for
Yuri [45]
Mr Wellborn arrives at work at 7:50 am. If you take 60 minutes away from 8:40 its 7:40 but take away 10 minutes and its 7:50.
8 0
3 years ago
Other questions:
  • Write an equation of the line passing through point P(0, −1) that is parallel to the line y = −2x+3 .
    11·1 answer
  • Gold has a weight of 1,204 pounds per cubic foot. What is the weight of a gold brick which has a volume of 44.4 cubic inches? Ro
    8·1 answer
  • Please help, we haven't practiced this in over a year and it's on my test.
    6·1 answer
  • A student has earned a 96%, 75%, 60%, 75%, and 97% on her unit tests. What is the student's median unit test score? Enter your a
    15·2 answers
  • Find the first five terms of the sequence..
    11·2 answers
  • What is the value of the expression below when y==8?<br><img src="https://tex.z-dn.net/?f=y%20%20-%20y%20-%202" id="TexFormula1"
    6·1 answer
  • According to the image below, which season is about to begin in the southern hemisphere?
    15·2 answers
  • Rewrite each algebraic expression in an equivalent form with the fewest
    10·1 answer
  • help please and explain your answer please !!!!!!!!!!! Houston Elementary School is selecting students to be in the winter festi
    7·2 answers
  • PLEASE HELP.. Sharlene purchased a new truck, whose value over time depreciates. Sharlene's truck depreciates according to the f
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!