All categories

4 years ago

What is your estimate for the number of airline flights in a year?

Mathematics

1 answer:

Firdavs [7]4 years ago

8 0

The answer is between 45,000,000-65,000,000

You might be interested in

While he hikes in the Gold Country of northern California, Sid dreams about the adventurers that walked the same trails years ag

olga2289 [7]

I did. Undestand the probelm

5 0

3 years ago

1)Sheyna drive to the lake and back. It took two hours less time to get there than it did to get back. The average speed on the

ipn [44]

Answer:

8 hours

Step-by-step explanation:

Given:

Sheyna drives to the lake with average speed of 60 mph and

$v_1 = 60\ mph$

Sheyna drives back from the lake with average speed of 36 mph

$v_2 = 36\ mph$

It took 2 hours less time to get there than it did to get back.

Let $t_1$ be the time taken to drive to lake.

Let $t_2$ be the time taken to drive back from lake.

$t_2-t_1 = 2$ hrs ..... (1)

To find:

Total time taken = ?

$t_1+t_2 = ?$

Solution:

Let D be the distance to lake.

Formula for time is given as:

$Time =\dfrac{Distance}{Speed }$

$t_1 = \dfrac{D}{60}\ hrs$

$t_2 = \dfrac{D}{36}\ hrs$

Putting in equation (1):

$\dfrac{D}{36}-\dfrac{D}{60} = 2\\\Rightarrow \dfrac{5D-3D}{180} = 2\\\Rightarrow \dfrac{2D}{180} = 2\\\Rightarrow D = 180\ miles$

So,

$t_1 = \dfrac{180}{60}\ hrs = 3 \ hrs$

$t_2 = \dfrac{180}{36}\ hrs = 5\ hrs$

So, the answer is:

$t_1+t_2 = \bold{8\ hrs}$

8 0

3 years ago

CAN SOMEONE HELPP PLZZ I POSTED THIS QUESTIONS LIKE 50 TIMES AND NO ONE ANSWEREDD

Nady [450]

Answer:

y = (x+1) + 1

Step-by-step explanation:

y = (x+1) + 1

y=x Vertical translation UP 1 unit and further Up 1 unit makes it UP 2 units,

y = (x+1) + 1 x≤-1 : The purple ray

4 0

3 years ago

What is 5-2+5-54-3+405+12-9

Ad libitum [116K]

Answer:

359

Step-by-step explanation:

5-2+5-54-3+405+12-9=359

4 0

3 years ago

Read 2 more answers

Shobos mother present age is six times shobos present age. Shobos age five from now will be one third of his mother's present ag

r-ruslan [8.4K]

Answer:

Step-by-step explanation:

From the problem statement, we can setup the following equations:

$M = 6S$

$S + 5 = \frac{1}{3}M$

where $S$ is the current age of Shobos and $M$ is the current age of his mother.

Substituting the first equation into the second will allow us to solve for $S$ :

$S + 5 = \frac{1}{3}M$

$S + 5 = \frac{1}{3}(6S)$

$S + 5 = 2S$

$S = 5$

Substituting this value into the first equation gives us the age of the mother:

$M = 6S$

$M = 6(5)$

$M = 30$

5 0

3 years ago

Read 2 more answers