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Maru [420]
3 years ago
13

Half of the boys in mrs.patricks homeroom 1/4 of them wear glasses how many boys in mrs.patricks homeroom wear glasses

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
5 0

Answer:

ummm be more specific and i can answer it for u!

Step-by-step explanation:

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Can someone PLEASE HELP FOR 15 POINTS!
serg [7]
I hope you understand

8 0
2 years ago
A box of Georgia peaches has 3 bad and 12 good peaches. (a) If you make a peach cobbler of 12 peaches randomly selected from the
Eddi Din [679]

Answer:

a) 0.21% probability that there are no bad peaches in the peach cobbler.

b) 99.79% probability of having at least 1 bad peach in the peach cobbler

c) 7.91% probability of having exactly 2 bad peaches in the peach cobbler.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the peaches are chosen is not important. So the combinations formula is used to solve this question.

Combinations formula:

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)!}

(a) If you make a peach cobbler of 12 peaches randomly selected from the box, what is the probability that there are no bad peaches in the peach cobbler?

Desired outcomes:

12 good peaches, from a set of 12. So

D = C_{12,12} = \frac{12!}{12!(12 - 12)!} = 1

Total outcomes:

12 peaches, from a set of 15. So

T = C_{15,12} = \frac{15!}{12!(15 - 12)!} = 455

Probability:

p = \frac{D}{T} = \frac{1}{455} = 0.0021

0.21% probability that there are no bad peaches in the peach cobbler.

(b) What is the probability of having at least 1 bad peach in the peach cobbler?

Either there are no bad peaches, or these is at least 1. The sum of the probabilities of these events is 100%. So

p + 0.21 = 100

p = 99.79

99.79% probability of having at least 1 bad peach in the peach cobbler

(c) What is the probability of having exactly 2 bad peaches in the peach cob- bler?

Desired outcomes:

2 bad peaches, from a set of 3.

One good peach, from a set of 12.

D = C_{3,2}*C_{12,1} = \frac{3!}{2!(3-2)!}*\frac{12!}{1!(12 - 1)!} = 36

Total outcomes:

12 peaches, from a set of 15. So

T = C_{15,12} = \frac{15!}{12!(15 - 12)!} = 455

Probability:

p = \frac{D}{T} = \frac{36}{455} = 0.0791

7.91% probability of having exactly 2 bad peaches in the peach cobbler.

3 0
3 years ago
Please help ASAP this is 6th grade math plz
lianna [129]

Answer:

3 ft times<em> x </em>ft

Step-by-step explanation:

You don't know what the x is so you can keep it as a x.You are going to multiply it so it is 3 ft times<em> x </em>ft

6 0
3 years ago
Which choicest are equivalent to the fraction below check all that apply 12/32
notka56 [123]
6/16 & 3/8. Hope it helped.
5 0
3 years ago
Math pls help it says there is a cone but there isn't.​
Snezhnost [94]

Answer:

SA = π3^2 + π3(7.5)

Step-by-step explanation: r is radius and L

is r*l/2

so 3*5/2=15/2=7.5

seriously look at a problem more carefully and memorise your formulas!

7 0
2 years ago
Read 2 more answers
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