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harkovskaia [24]
4 years ago
9

The elementary school lunch menu repeats every 20 days ; the middle school lunch menu repeats every 15 days. Both schools are se

rving pizza today. In how many days will both schools serve pizza again?
Mathematics
1 answer:
Vikki [24]4 years ago
7 0
The trick to this question is the find the least common multiple of 20 and 15. You could do 20×3=60 and 15×4=60 as those both equal the same number yet you there are no other multiples they share before 60. So the next time the two schools will eat pizza on the same day again will be in 60 days. Hope this helps!
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Suppose we roll one fair six-sided die, and flip six coins. what is the probability that the number of heads is equal to the num
sergejj [24]

The probability that the number of heads is equal to the number showing on the die is \frac{21}{128} .

According to the question

we roll one fair six-sided die, and flip six coins

i.e

The Total Outcomes is the product of the sample spaces for the dice and the coins.  

sample spaces for the dice = 6

sample spaces for the coins = 2⁶

S = 6.2⁶

S = 384

Now, The  probability is

Therefore, the Favorable Outcomes

Consider the number of ways to get each total of heads from 1 to 6.

= 2⁶-1 (as TTT is excluded )

= 63

The probability that the number of heads is equal to the number showing on the die

As

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

Probability(Event) = Favorable Outcomes/Total Outcomes

By substituting the values in the formula

Probability(Event) = \frac{63}{384}

Probability(Event) = \frac{21}{128}

Hence, the probability that the number of heads is equal to the number showing on the die is \frac{21}{128}

To know more about probability here:

brainly.com/question/11234923

#SPJ4

3 0
1 year ago
What is the area of the circle. Explain your work.
Mama L [17]

78.5m

Step-by-step explanation:

we know the diameter so now we need to know the radius. Divide by 2 and we get 5.

A = Pi×r²

A = Pi×25

A = 78.5

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3 years ago
Michelle has an 85-page manuscript. The equation below shows the relationship between the total cost of editing 85 pages, T, and
muminat
I'm trying to solve this too did u find it out???
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3 years ago
Luke drove 325 miles in 5 hours. What was his average speed in miles per hour?
Stolb23 [73]

Answer:

65mph

Step-by-step explanation:

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. If you saved $2.00 on january 1, $4.00 on february 1, $8.00 on march 1, $16.00 on april 1, and so on. how much money would you
SIZIF [17.4K]
=2+4+8+16+32+64+128+256+512+1024+2048+4096
=8190
4 0
4 years ago
Read 2 more answers
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