1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RoseWind [281]
3 years ago
5

Mr. and Mrs. Nelson are going to build a new home. They need to have working drawings of their house plans created by a design f

irm.
They will choose between Rock the House Digital Designs and Elegant Home Architects. Rock the House Digital Designs charges $500.00 for
the initial consultation with the Nelsons, plus $50.00 for every additional hour of work for the house plans. Elegant Home Architects charge
$75.00 per hour for the house plans. Let a represent the number of hours for which Mr. and Mrs. Nelson hire the design firm. Which of the
following statements are true? Select all that apply.
Mathematics
1 answer:
matrenka [14]3 years ago
8 0

Answer:

Options 2), 4), and 5) are correct

Step-by-step explanation:

<u>Rock the House Digital Designs</u>

  • Cost = $(500 + 50h)

<u>Elegant Home Architects</u>

  • Cost = $(75h)

===========================

<u>Answer options:</u>

1)The expression 50h represents the total charge for Rock the House Digital Designs.

  • Incorrect. Additional $500 charged.

2)The expression 75h represents the total charge for Elegance Home Architects.

  • Correct

3)The expression 500 + 75h + 50h represents the total amount the Nelsons will spend working drawings of their new house plans.

  • Incorrect. They will choose one of the options.

4)If the Nelsons hire the design firm for 15 hours, then Elegance Home Architects will be cheaper.

  • Correct. It will cost 15*75 = $1125. Alternative costs 500 + 50*15 = $1250

5)If the Nelsons hire the design firm for 25 hours, then Rock the House Digital Designs will be cheaper.

  • Correct. It will cost 500+25*50 = $1750. Alternative cost is 25*75 = $1875
You might be interested in
A farmer examines a sample of 25 cartons of eggs and finds that 3 contains cracked eggs. What is the best prediction of the numb
sertanlavr [38]
I believe it's C) 60 because ideally it would be 3 for every 25, 20 x 25 = 200, so then you would do 3 x 20 = 60
3 0
3 years ago
Read 2 more answers
Please give a explanation :)<br> i will mark as brainliest!!
Fynjy0 [20]

Answer:

x=12 y=3

Step-by-step explanation:

Since the scale factor is 1:3, that means that the length and width of Q multiplied by 3 gives the corresponding length and width of P.

Similarly, the length and width of P divided by 3 gives the corresponding length and width of Q.

With this, 9/3=3, which is the value of y.

4*3=12, which is the value of x.

5 0
2 years ago
The water diet requires you to drink two cups of water every half hour from the time you get up until you go to bed, but otherwi
Elan Coil [88]

Answer:

7-3.182 \frac{13.638}{\sqrt{4}}= -14.698

7+3.182 \frac{13.638}{\sqrt{4}}= 28.698

Step-by-step explanation:

For this case we have the following info given:

Weight before diet 180 125 240 150  

Weight after diet 170 130 215 152

We define the random variable D = before-after and we can calculate the inidividual values:

D: 10, -5, 25, -2

And we can calculate the mean with this formula:

\bar X= \frac{\sum_{i=1}^n X_i}{n}

And the deviation with:

s= \sqrt{\frac{\sum_{i=1}^n (X_i- \bar X)^2}{n-1}}

And after replace we got:

\bar D= 7, s_d = 13.638

And the confidence interval for this case would be given by:

\bar D \pm t_{\alpha/2} \frac{s_d}{\sqrt{n}}

The degrees of freedom are given by:

df = n-1= 4-1=3

For the 95% of confidence the value for the significance is \alpha=0.05 and the critical value would be t_{\alpha/2}= 3.182. And replacing we got:

7-3.182 \frac{13.638}{\sqrt{4}}= -14.698

7+3.182 \frac{13.638}{\sqrt{4}}= 28.698

6 0
3 years ago
The function h (2) = -16x2 + 200 gives the height, in feet, of a ball after 2 seconds since being dropped from a
aksik [14]

Answer:The ball dropped 56 feet after 3 seconds

Step-by-step explanation:

3 0
3 years ago
Karen works 42 hours in a week and earns 6.85 per hour. Estimate the amount of money she earns in a week.
katen-ka-za [31]

Answer:

287.7 u gotta be kidding,

Step-by-step explanation:

42×6.85=287.7

7 0
3 years ago
Read 2 more answers
Other questions:
  • The water from one outlet, flowing at a constant rate, can fill a swimming pool in 9 hours. The water from a second outlet, flow
    15·1 answer
  • *****urgent help ****Write 2447457.627 in standard form to a appropriate degree of accuracy pls i need help
    6·1 answer
  • Woman’s age is three years more than twice her sons age. The sum of the ages is 84. How old is the sun
    11·2 answers
  • I need help with this please
    10·2 answers
  • Y=-1 <br> Y=2x-7 hsbdhdhhdhdjdjdjfjjfjfjffj
    6·1 answer
  • Pls help .............​
    13·1 answer
  • Please answer! Will mark brainliest. <br><br> -3|5x-2|&gt;4
    11·2 answers
  • What is pm ⋅ pn equal to?<br><br> pm − n<br> pm + n<br> pm ⋅ n<br> pm ÷ n
    8·1 answer
  • When Tara, a nurse, works on Saturdays, she is paid a $30 bonus plus $20 per hour worked.
    12·1 answer
  • PLEASE HELP ME ASAP!!!! :(<br> what are the three blanks??<br><br> tysmmmmm
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!