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Sergio039 [100]

3 years ago

14

Pete's Plumbing charges a $150 inspection fee plus $60 per hour. Paul's Plumbing charges a $90 inspection fee plus $75 per hour.

How many hours will it take for the total cost of the two plumbers to be the same? How much will the total cost be?

1 answer:

Klio2033 [76]3 years ago

5 0

Answer:

40+75 x = 125 + 25x

Step-by-step explanation:

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On a recent day, one U.S dollar was worth 0.81 euros. If you were to exchange 222 euros, how many U.S dollars would you receive?

Juli2301 [7.4K]

<em>Answer:</em>

<em>254.22</em>

<em>Step-by-step explanation:</em>

<em>222 euros equal 254.22</em>

7 0

2 years ago

Factorise the equation 9x^2 - 4

Wittaler [7]

Answer:

Step-by-step explanation:

a² - b² = (a +b)(a - b)

9x² - 4 = (3x)² - 2²

= (3x + 2 )(3x - 2)

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3 years ago

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 46.0 and 56.

barxatty [35]

Answer: 0.05

Step-by-step explanation:

Given : Interval for uniform distribution : [46.0 minutes, 56.0 minutes]

The probability density function will be :-

$f(x)=\dfrac{1}{56-46}=\dfrac{1}{10}=0.1\ \ , 46$

The probability that a given class period runs between 50.75 and 51.25 minutes is given by :-

$P(50.75$

Hence, the probability that a given class period runs between 50.75 and 51.25 minutes = 0.05

7 0

3 years ago

Please help me on this I'am still stuck on it thank you all

brilliants [131]

77 is the median score for rhis propblem

7 0

2 years ago

Read 2 more answers

Anyone willing to help? Surprise included

AveGali [126]

Answer:

An arithmetic sequence has a constant difference between each term.

For example: 2,4,6,8,10,12,…

We can see clearly that all the terms differ by +2.

We call this the common difference, d.

A geometric sequence has a constant ratio (multiplier) between each term.

An example is: 2,4,8,16,32,…

So to find the next term in the sequence we would multiply the previous term by 2.

This is called the common ratio, r.

These sequences are closely related as they both have the same first term, but I hope you can see how different they become if they have a common difference or a common ratio.

We can create a decreasing arithmetic sequence by choosing a negative common difference.

Similarly, a decreasing geometric sequence would have a common ratio of less than 1.

Step-by-step explanation:

4 0

2 years ago