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crimeas [40]
3 years ago
13

you have reading homework every 6 days and you have science homework every 15 days. If you have homework in both today when will

you have homework in both subjects on the same day again?
Mathematics
1 answer:
cluponka [151]3 years ago
8 0
Do you remember when you were learning about the "Least Common
Multiple" of two numbers, and you were wondering why you had to learn
it, because you were so sure that you'd never need to use it ?  Do you
remember that ?

Well, HERE's where you get to use it.  This question is just looking for
the LCM of 6 and 15 .  THAT's how many days it will be before you get
homework in both subjects on the same day again.

(It's not 90 days, and it's not 60 days.)
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If x+y=12 and xy=27 . find x^3+y^3<br>pls help with steps ​
Ivan

Answer:

Step-by-step explanation:

use formula

x^3+y^3=(x+y)^3-3*x*y(x+y)

=12^3-3*27(12)

=1728-972

=756

8 0
2 years ago
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Answer:

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3 0
3 years ago
Kaitlin makes $13.15 per hour. If she works more than 40 hours in a week, she gets paid time and a half. Kaitlin gets a paycheck
Dmitrij [34]

Answer: 8 hours

Step-by-step explanation:

The pay is for 2 weeks which means that she worked for 80 hours.

At 80 hours, the regular income she should make is:

= 80 * 13.15

= $1,052

The total she made from overtime is therefore:

= 1,209.84 - 1,052

= $157.84

When she works overtime, she gets paid at a rate of a time and half. This means she gets:

= 13.15 * 1.5

= $19.73

The hours of overtime she worked is therefore:

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3 0
3 years ago
In order to determine the effectiveness of a new measles antibody test, it is administered to 500 people chosen at random. The n
myrzilka [38]

Answer:

The probability that a randomly chosen person has measles antibodies in his/her blood if the new test is positive = 0.9796

Step-by-step explanation:

The event that someone tests positive = P(T)

The event that someone has antibodies = P(A)

The event that someone does not have antibodies = P(A')

The new test was positive when administered to 96% of those who have the antibodies.

This probability = P(T n A) = 0.96

The new test gave positive results in 2% of those who do not have them.

This probability = P(T n A') = 0.02

The probability that a randomly chosen person has measles antibodies in his/her blood if the new test is positive = P(A|T)

This conditional probability is given as

P(A|T) = P(T n A) ÷ P(T)

P(T) is given as

P(T) = P(T n A) + P(T n A') = 0.96 + 0.02 = 0.98

P(A|T) = P(T n A) ÷ P(T) = 0.96 ÷ 0.98 = 0.9796

Hope this Helps!!!

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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