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3 years ago

An airliner travels 45 miles in 6 minutes. what is the speed in miles per hour?

Mathematics

2 answers:

Romashka-Z-Leto [24]3 years ago

7 0

6 minutes/60minutes = 0.1 hrs
45miles/0.1hour = 450 miles per hour or mph

Sergio039 [100]3 years ago

7 0

7.5 miles per hour is the answer

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At RSM summer camp 100 students had enough food for a 30-days stay. After 2 days 40 new students joined the camp. After that 2 w

omeli [17]

Answer:

"no additional days of food need to be ordered."

Step-by-step explanation:

Suppose initial quantity of food is x units

Assuming each student eats 1 unit of food per day,

x = 30 * 100 = 3000 units of food

In 2 days, food eaten:

100 * 1 * 2 = 200 units

So food left after 2 days is 3000 - 200 = 2800 units

Now, there are 140 students. They stay 2 weeks (14 days) - 2 = 12 more days

So food eaten in 12 days:

140 * 1 * 12 = 1680 units

THus, after total 14 days gone, the amount of food left is:

2800 - 1680 = 1120 units

Half students left, so there are 70 students left for the last 16 days. How much food would they need?

70 * 1 * 16 = 1120 units

And there are exactly 1120 units left. So, no additional days of food need to be ordered.

6 0

3 years ago

Find the value of N 6:7 = n : 4 : 2

Aleksandr-060686 [28]

Answer:

3.428 or 3 wholes 3/7

Step-by-step explanation:

6 : 7 = n : 4 : 2

6 : 7 = n : 4

6/7 = n/4

7n = 24

n = 24 /7

n = 3. 428 or 3 wholes 3/7

4 0

2 years ago

Will give brainliest mark plz helpp urgenttt easyy

Finger [1]

Answer:

see explanation

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

- 4x + 3y = 12 ( add 4x to both sides )

3y = 4x + 12 ( divide the terms by 3 )

y = $\frac{4}{3}$ x + 4 ← in slope- intercept form

with slope m = $\frac{4}{3}$ and y- intercept c = 4

---------------------------------------------------

Given

- 5x + 3y = - 9 ( add 5x to both sides )

3y = 5x - 9 ( divide the terms by 3 )

y = $\frac{5}{3}$ x - 3 ← in slope- intercept form

with slope m = $\frac{5}{3}$ and y- intercept c = - 3

8 0

3 years ago

Could someone help please

leonid [27]

Answer: B

Step-by-step explanation:

There are 26 letters in the alphabet. D is the 4th letter, so there are 26 - 4 = 22 letters after D.

$\frac{22}{26}$ ÷ $\frac{2}{2}$ = $\frac{11}{13}$

3 0

3 years ago

If pr is 3x+14 and qr 7x-10 what is x

mr Goodwill [35]

Start the equation by putting the equations equal to each other 3x+14=7x-10
Next +10 on both sides
3x+14=7x-10
+10 +10
You are left with 3x+24=7x
because the 10's canceled each other out.
Next -3x on both sides
3x+24=7x
-3x +3x

You are left with 24= 10x
because like before the 3's canceled each other out
Now you will divide both sides by 10

24=10x
---- -----
10 10

2.4= X is the answer!

8 0

3 years ago