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vazorg [7]
3 years ago
9

The total charge for a taxi ride in nyc includes an initial fee of $3.75 plus $1.25 for every 1/2 mile traveled. Yhe taxi ride c

ost her exactly 12.50 how many miles did she travel
Mathematics
1 answer:
AnnZ [28]3 years ago
8 0

Answer:

12.50 - 3.75  = 8.75

$8.75 / $1.25 * (1/2) (per mile) = 3.5 miles

1. Mile .5 (fee and 1st mile)

$3.75 + $1.25 = $5.00

2. Miles .5 - 3.5 (additional 3 miles)

$1.25 * (3*2) = $7.50

Total: $5.00 + 7.50 = $12.50

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
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8 0
2 years ago
The power P of a jet of water is jointly proportional to the cross sectional area A and to the cube ofthe velocity V. (a) Write
anastassius [24]

Answer:

a)  P=kAV^3

b)  54

Step-by-step explanation:

a)

If one quantity, A, is jointly proportional to other 2 quantities (B & C), we can write proportionality equation as:

A=k*B*C

Where

k is the proportionality constant

Now, for this problem, P is jointly proportional to A and CUBE OF V, so we can write:

P=kAV^3

b)

Now velocity, V, is triples, which means it becomes 3V

Also, cross sectional area, A, is doubled, which means it becomes 2A

Let's put these into formula and see the difference:

P=kAV^3\\P=k(2A)(3V)^3\\P=k(2A)(27V^3)\\P=(2*27)kAV^3\\P=54kAV^3

So, power is multiplied by a factor of 54. Power becomes 54 times if Area is doubled and velocity is tripled ( as seen ).

8 0
2 years ago
john can shovel a certain driveway in 50 minutes if mar can shovel the same driveyway in 20 minutes how long will it take them t
Assoli18 [71]

John and Mar need 14 minutes complete shovel their driveway together, to the nearest minute.

<h3>What is rate of doing work?</h3>

You can use this computation to determine the hourly value of each employee's job, allowing you to more effectively and efficiently plan your staffing needs in the future.

This is crucial because it enables you to determine the ideal workforce size based on your average hourly wage.

According to the question;

by calculating the fraction of unit work that each individual can finish in a given amount of time together work is estimated.

Mary can clear 1/20 of a driveway in a minute, but John can clear 1/50 of it in that time.

The both will do the same job in;

= (1/20) + (1/50)

= (5/100) + (2/100)

= 7/100

They'll be finished when they've cleared 100 percent of the driveway, therefore the equation we must finally solve is:

7x = 100.

x = 100/7

x = 14.28

Therefore, when John and Mar will work together, they will shovel the driveway in 14 minutes (to the nearest minute).

To know more about work rate, here

brainly.com/question/1144815

#SPJ4

4 0
1 year ago
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