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3 years ago

I need help!! I want to graduate!! The only class I have left please!!

Mathematics

2 answers:

dangina [55]3 years ago

8 0

1.) D
2.) A

The other 2 don’t have the answers I got hope I helped some what

irina [24]3 years ago

4 0

Answer: Bro write the question better

Step-by-step explanation:

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Có 30 đềthi trong đó có 10 đềkhó, 20 đềtrung bình. Tìm xác suất để:a)Một Học sinh bắt một đềgặp được đềtrung bình.b)Một Học sinh

sergeinik [125]

Answer:

ehfsxuefoenircuducrusxnrim

7 0

2 years ago

In a naval engagement, one-third of the fleet was captured, one-sixth was sunk, and two ships were destroyed by fire. One-sevent

Otrada [13]

Answer:

60 ships.

Step-by-step explanation:

Let the total number of ships in the naval fleet be represented by x

One-third of the fleet was captured = 1/3x

One-sixth was sunk = 1/6x

Two ships were destroyed by fire = 2

Let surviving ships be represented by y

One-seventh of the surviving ships were lost in a storm after the battle = 1/7y

Finally, the twenty-four remaining ships sailed home

The 24 remaining ships that sailed home =

y - 1/7y = 6/7y of the surviving fleet sailed home.

Hence

24 = 6/7y

24 = 6y/7

24 × 7/ 6

y = 168/6

y = 28

Therefore, total number of ships that survived is 28.

Surviving ships lost in the storm = 1/7y = 1/7 × 28 = 4

Total number of ships in the fleet(x) =

x = 1/3x + 1/6x + 2 + 28

Collect like terms

x - (1/3x + 1/6x) = 30

x - (1/2x) = 30

1/2x = 30

x = 30 ÷ 1/2

x = 30 × 2

x = 60

Therefore, ships that were in the fleet before the engagement were 60 ships.

3 0

3 years ago

Over the last 4 seconds, a snail has traveled 4/9 of an inch. If the snail traveled the same distance each second, how far did i

bazaltina [42]

Answer: the correct answer is A. :-)

Step-by-step explanation:

4/9 divided by 4 is 1/9.

8 0

3 years ago

Read 2 more answers

Safety regulations require that the time between airplane takeoffs (on the same runway) will be at least 3 minutes. When taking

Alenkinab [10]

Answer:

1.96 planes

Step-by-step explanation:

The computation of the number of planes is shown below:

As we know that

System Inventory is

= Flow rate in the system × Throughput time

where,

Flow rate is

= Frequency of taken off

= 16 planes ÷ hour

= 16 ÷ 60 Planes per minute

Throughput time is

= runway waiting time + runway Run time

= 33 seconds + 6 minutes × 60 seconds + 48 seconds

= 441 seconds

= 441 per 60 seconds

Therefore the number of planes is

$= \frac{441}{60} \times \frac{16}{60}$

= 1.96 planes

4 0

3 years ago

Add [ -6 -2 2] + [-3 2 1]

Troyanec [42]

-6 (negative six) is the answer

8 0

3 years ago

Read 2 more answers