Help with number 7 I forgot how you find the retail sale price markdwon

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Answer 1

Answer: I had these kind of questions in my exams recently.... hope this helps Xx

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PLEASE HELP I GIVE THANKS
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725 miles in 8 hours ___ miles per hour
Hadi earned $120.00 from his job yesterday. Today he expects to earn 15% less than yesterday and tomorrow he expects to earn 15% more than today. What is the combined amount Hadi expects to earn for three days

Tim can paint a house in 6 days. Tara can paint a house in 3 days. a. What fraction of the house can Tim paint in one day? What fraction of the house can Tara paint in one day?
b. What fraction of the house can Tim paint in d days? What fraction of the house can Tara paint in d days?
c. What fraction of the house can Tim and Tara together paint in one day? What fraction of the house can Tim and Tara together pain in d days?
d. Write and solve an equation to find the number of days it will take Tim and Tara to paint the whole house working together?

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There are so many parts to this question that I would normally skip it ...
I mean, even though there are only 4 letters, it needs 7 answers.
But I was so overcome with shock and awe at the sight of the bountiful
5 points at the end of the rainbow that I just couldn't pass it by.

Tim can paint a house in 6 days.
Tara can paint a house in 3 days.

a). Tim paints 1/6 of a house in one day.
Tara paints 1/3 of a house in one day.

b). In 'd' days, Time can paint d/6 of a house.
      In 'd' days, Tara can paint d/3 of a house.

c). In one day, Tim and Tara together can paint (1/6 + 1/3) = 1/2 of a house.
In 'd' days, Tim and Tara together can paint (d/6 + d/3) = d/2 of a house.

d). The number of days it will take Tim and Tara together to paint
   a whole house is
   N = 1 / (1/6 + 1/3)

   N = 1 / (1/2)

   N = 2 .

Ms. Hartland bought x number of shirts for the new members of her chorus. The cost for x number of shirts, including $3.99 shipping, was $77.49. Each shirt cost $12.25. There was no sales tax on this purchase. Which equation could be used to find x? A. 3.99(x+12.25) =77.49
B. 3.99x + 12.25 =77.49
C. 12.25(x+3.99) = 77.49
D. 12.25x+3.99= 77.49

Answers

Answer:

D. 12.25x +3.99 = 77.49

Step-by-step explanation:

At the ABC Electronics Store, a laptop computer was marked down 15% from its original price of $900. A store employee gets an additional 20% discount on the already marked-down price. How much does the employee pay for the laptop computer?