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
vichka [17]
3 years ago
9

a teacher wants to give 3 markers to each of her 25 students .Markers come in packages of 8.How many packages of markers will th

e teacher need?
Mathematics
1 answer:
Tresset [83]3 years ago
4 0

Answer:

10 packs of markers

Step-by-step explanation:

3 x 25 = 75 markers she will need for her whole class

75 / 8 = 9.4 packages needed to get 75 markers, but since you cant buy have of a pack you round up so she will have enough for her class and a couple extra.

You might be interested in
I need help please!!!!
ycow [4]

Answer:

x = 14.48

Step-by-step explanation:

first we have to see that we have the measurements from all sides

and we know that the angle between side 21 and 20 is 90 degrees

well to start we have to know the relationships between angles, legs and the hypotenuse.

a: adjacent

o: opposite

h: hypotenuse

sin α = o/h

cos α= a/h

tan α = o/a

let's take the left angle as α

sin α = 21/29

α = sin^-1 (21/29)

α = sin^-1 (0.7241)  

α = 46.397

Now we do the same with the smaller triangle

tan α = o/a

sin 46.397  = x/20

0.724 = x/20

0.724 * 20 = x

14.48 = x

x = 14.48

if we want to check it we can do the same procedure with the other angle

4 0
3 years ago
Find the sum of the first 3030 terms in this geometric series:
Viefleur [7K]

Answer:

I think it might be B. but I am not so sure.

7 0
3 years ago
Read 2 more answers
Find the volume...!!
Rudiy27

Answer:

52.8

Step-by-step explanation:

cube volume formula: BH

                                   : 33 x 4.4 = 52.8

7 0
2 years ago
Read 2 more answers
A packet of candles and box of matches cost #420. The candles cost 20 times as much as the matches
olga55 [171]

Answer:

candles = $400

matches = $20

Step-by-step explanation:

Let cost of candles = $c

Let cost of matches = $m

c = 20 m (20 times m)

c + m = 420

20m + m = 420

21 m = 420

m = 20

c = 20 (20) = 400

6 0
3 years ago
Samir is an expert marksman. When he takes aim at a particular target on the shooting range, there is a 0.950.950, point, 95 pro
Vinvika [58]

Answer:

40.1% probability that he will miss at least one of them

Step-by-step explanation:

For each target, there are only two possible outcomes. Either he hits it, or he does not. The probability of hitting a target is independent of other targets. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

0.95 probaiblity of hitting a target

This means that p = 0.95

10 targets

This means that n = 10

What is the probability that he will miss at least one of them?

Either he hits all the targets, or he misses at least one of them. The sum of the probabilities of these events is decimal 1. So

P(X = 10) + P(X < 10) = 1

We want P(X < 10). So

P(X < 10) = 1 - P(X = 10)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 10) = C_{10,10}.(0.95)^{10}.(0.05)^{0} = 0.5987

P(X < 10) = 1 - P(X = 10) = 1 - 0.5987 = 0.401

40.1% probability that he will miss at least one of them

7 0
3 years ago
Other questions:
  • How many liters of a 25 percent saline solution must be added to 3 liters of a 10 percent saline solution to obtain a 15 percent
    10·1 answer
  • Find each unit rate. Round to the nearest hundredth if necessary.<br> 13 apples for 2 pies
    5·2 answers
  • a bottle of shampoo has a capacity of 0.43 L. how many milliliiters of shampoo does the bottle contain?
    5·2 answers
  • 2/3 &gt; 5/12 is this one correct
    14·2 answers
  • Consider various ways of ordering the letters in the word TENNESSEE. TENENESES, EESSENNET, TNNEESSEE, and so on. (a) How many di
    15·1 answer
  • I need you show me your answer for number 47
    7·1 answer
  • PLEASE NEED HELP ASAP TYTY I WILL BE GIVING THANKS!
    15·1 answer
  • There were five teams entered in a competition. Each team consisted of either only boys or only girls. The number of team member
    5·1 answer
  • PLEASE HELP!! NO LINKS PLEASE!!
    13·1 answer
  • HELP!!!!!!!!!!!!!!!!!!!!!HELP ME PLEASE I WILL GIVE YOU 50 ponts
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!