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Romashka-Z-Leto [24]
3 years ago
6

An airplane that travels 450 mph in still air encounters a 50-mph headwind. How long will it take the plane to travel 1200 mi in

to the wind?
Mathematics
1 answer:
BartSMP [9]3 years ago
4 0

Answer:

It takes 3 hours which is equivalent to 180 minutes

Step-by-step explanation:

The actual speed of the wind = 450 -50

= 400mph

D = r*t

D = 1200

r = 400

t = time which is unknown

Inserting into formula

1200 = 400t

Divide through by 400 to get t

1200/400 = t

3 = t

Therefore the time it will take for the plane to travel 1200 mike's is 3 hours from the answer above.

When converted to minutes, 3 hours = 3x60 = 180minutes

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\frac{(5 - 2) \times 180}{5}  =  \\

\frac{3 \times 18 \times 10}{5}  = 3 \times 18 \times 2 =  \\

54 \times 2 = 108

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5 0
2 years ago
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Answer:

268

Step-by-step explanation:

5 0
3 years ago
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4 0
3 years ago
Brand X Pizza is having a special coupon offer. If you buy two large pizzas, you get $2.00 off the price. A large pizza normally
Olegator [25]

Very handy question to know the answer to. I know of no place on the planet that does not have a tax of some sort.

The tax only applies when money changes hands. It does not apply to any discounts

So if you take the deal, the cost is

Cost of 2 pizzas = normal price - the discount.

Cost of 2 pizzas = 2*10.50 - 2.00

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Cost of 2 pizzas = 19.00 dollars.

Not you add on the sales tax. You can do this one of two ways, the long way or the short way.

<u>Long way</u>

Find the sales tax

Tax = % * cost

Tax = (7.5/100) * 19

Tax = 1.425 don't round yet.

Total Cost = purchase + tax

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<u>Short Way</u>

Cost = (Price - discount)*(1 + %/100)

Cost = (21 - 2)*(1+ 7.5/100)

Cost = 19 * (1.075)

Cost = 20.425 = 20.43

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3 years ago
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