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MAXImum [283]
3 years ago
6

A small airplane can fly 12 miles in 3 minutes. At this rate, how far can it fly in 7 minutes? In an hour?

Mathematics
1 answer:
Kay [80]3 years ago
7 0

Answer:

28 miles in 7 minutes, 240 miles in an hour

Step-by-step explanation:

We can first simplify the rate to miles per minute. Since the plane goes 12 miles in 3 minutes, we can divide it by 3 to find how much it travels in one minute. 12 divided by 3 is 4 and 3 divided by 3 is 1

The plane travels 4 miles a minute

To find how much it travels in 7 minutes, multiply by 7

4x7 is 28

28 miles in 7 minutes

To find an hour, multiply by 60

4x60= 240

240 miles in an hour

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nevsk [136]

Answer:

B

Step-by-step explanation:

6% is usually represented by 0.06

Hope this helped :)

6 0
2 years ago
A package delivery company experiences high variability in daily customer demand, which in turn results in high variability in t
Ilya [14]

Solution :

Let :

X = number of overtime hours

S = total weekly salary

S = $12 \times 40 + 18 \times X$

S = 480 + 18X

E(S) = $480 + 18 \times E(X)$

$E(S) = 480 + 18 \times 15$

        = 750

Mean of S = 750

Var (S) = $18^2 \times Var(X)$

Var(S) = $18^2 \times 4^2$

          = 5184

Variance of S = 5184

The standard deviation equals square root of 5184 = 72

4 0
3 years ago
In a game, there are 12 identical balls of which seven are red and five are green.
Alex

Answer:

its number 2 and if its a mutable answers writ 3 also

7 0
3 years ago
Math queztion -8x + 40> -16 =
emmainna [20.7K]

Answer: x < 7

Step-by-step explanation: Just like any of your two-step equations, in this inequality, start by isolating the x term which in this case is -8x by subtracting 40 from both sides.

That leaves you with -8x > -56.

To get <em>x</em> by itself, divide both sides by -8 but watch out.

If you divide both sides of an inequality by a negative,

you must switch the direction of the inequality sign.

So we have x < 7.

4 0
3 years ago
Read 2 more answers
PLEASE HELP ME I REALLY NEED IT
kenny6666 [7]

Answer:

y = 8x+0

Step-by-step explanation:

The slope is

m = (y2-y1)/(x2-x1)

   = (-8-0)/(-1-0)

   -8/-1

   8

The y intercept is 0 since it goes through (0,)

The slope intercept form of the equation is

y = mx+b

y = 8x+0

6 0
3 years ago
Read 2 more answers
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