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e-lub [12.9K]
3 years ago
6

A penguin walks 15 feet in 9 seconds.

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

Answer:

12 seconds.

Step-by-step explanation:

If you put it like 15/9 = 20/x, then cross multiply and divide you do 9 times 20 you get 180, then you divide 180 by 15 and you get 12. Hope this helps!

lilavasa [31]3 years ago
3 0
5 feet per sec so that means 3 sec for 5 feet so for 20 it’s 12 seconds
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4vir4ik [10]

Answer:

A n B = {6}

Step-by-step explanation:

Given he sets A = (even numbers less than 10) and B = (multiples of 3 greater than 3)

A = {2, 4, 6, 8}

B = {3, 6, 9, 12, 15...}

A n B includes the numbers are are common to both sets i.e number that we can find in both A and B.

From the set given, we can see that the only number that exists in both set is 6, hence;

A n B = {6}

5 0
2 years ago
Rebecca is on a game show and must choose between door A, B, or C. One of the doors opens to the grand prize. What is the probab
earnstyle [38]

Answer:

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Step-by-step explanation:

7 0
3 years ago
A door alarm works in 72 out of 100 cases and surveillance camera works in 68 out of 100 cases. what is the probability of effec
Rudiy27

A door alarm works in 72 out of 100 cases.

surveillance camera works in 68 out of 100 cases.

The probability that method A is used = 72/100

The probability that method B is used = 68/100

Since both method are used we find the probability of A and B

Probability ( A and B) = \frac{72}{100} * \frac{68}{100}

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7 0
2 years ago
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Shania had $20 to spend on seven raffle tickets. After buying them she had $6. How much did each raffle ticket cost?
kogti [31]

Answer:

$2

Step-by-step explanation:

Total money Shania was having = $20.

After buying raffle tickets she was having a total of $6.

Thus ,

The money she spent on the raffle tickets = Money she was having initially -

                                                                         Money she was having after

                                                                         purchasing tickets .

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                                                                 = $14.

Thus She spent a total of $14 on tickets .

Now , number of tickets she bought = 7.

So, cost of each ticket = \frac{Money spent}{Number of tickets} = \frac{14}{7}

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Thus , each ticket costs $2 for Shania.

7 0
3 years ago
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My name is Ann [436]

Answer:

50.24 square yards

Step-by-step explanation:

area = 3.14 × 4²

8 0
3 years ago
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