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borishaifa [10]
3 years ago
12

One plane leaves an hour after another plane. The first plane travels at 400mph. How fast must the second plane travel to catch

up to the first plane in 2 hours
Mathematics
2 answers:
Dovator [93]3 years ago
4 0

Answer:

200 mph

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Plane a: 400mph

Plane b: x mph

2x=400

x=200

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

BTW, brainliest would be greatly appreciated, I only need one more before I advance, thanks!

Also, I may have done something wrong, please tell me if it's incorrect!

murzikaleks [220]3 years ago
3 0

Answer: the second plane must travel 800 mph.

Step-by-step explanation:

Let x represent the speed of the second plane.

By the time both planes will meet, they would have covered the same distance.

Distance = speed × time

The first plane travels at 400mph.

Since the second plane caught up with the first plane in 2 hours, then the distance covered by the first plane is

400 × 2 = 800 miles

The second plane leaves an hour after the first plane. This means that the time spent by the second plane before it caught up with the first plane is 1 hour

Distance covered by the second plane is x × 1 = x

Since the distance covered is the same, then

x = 800 mph

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Gertrude takes out a $5,500 subsidized stafford loan, which must be paid back in ten years. gertrude will graduate four years af
Leno4ka [110]

The total amount of interest will Gertrude pay by the time the subsidized Stafford loan is repaid is $2094.80.

<h3>What is compound interest?</h3>

Compound interest is the amount charged on the principal amount and the accumulated interest with a fixed rate of interest for a time period.

The formula for the final amount with the compound interest formula can be given as,

A=P\times\left(1+\dfrac{r}{n\times100}\right)^{nt}\\

Here, A is the final amount (principal plus interest amount) on the principal amount P of with the rate<em> r </em>of in the time period of <em>t.</em>

Gertrude will graduate four years after taking out the loan. if the loan has an interest rate of 6.8%, compounded monthly, and Gertrude makes monthly payments.

Put the values in the above formula as,

5500=P_{mt}\times\left(1-\dfrac{6.8}{12\times100}\right)^{-12\times10}\\P_{mt}=63.29

In the 10 years, the refund she gets,

A_r=63.29\times12\times100\\A_r=7594.8

Interest paid by her is,

I=7594.8-5500\\I=2094.8

Thus, the total amount of interest will Gertrude pay by the time the subsidized Stafford loan is repaid is $2094.80.

Learn more about the compound interest here;

brainly.com/question/24274034

3 0
3 years ago
54:20
Karo-lina-s [1.5K]

Answer:

the answer is actually 0

Step-by-step explanation:

8 0
3 years ago
First, find the volume for each bottle. Use 3.14 for pie or the pie button and round to the nearest hundredth. Volume of cylinde
marshall27 [118]

the volume of the cylinder is 572.27 cm³

Explanation:

Given:

radius of the cylinder = 4.5cm

height = 9cm

To get the volume of the cylinder, we will use the formula:

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3 0
1 year ago
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9966 [12]
I would say A,C,and D
6 0
3 years ago
Bag of sweets £1.50 per bag, buy 3 get 1 free how many sweets can you buy for £9
IgorLugansk [536]

Answer: 8

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you can then divide 6 by three, which is 2- meaning you got two free bags of sweets. 6 plus 2 is 8.

3 0
3 years ago
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