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
kompoz [17]
2 years ago
13

Simplify the expression 2(3+d-1)=

Mathematics
1 answer:
Alex73 [517]2 years ago
3 0

Answer:

4+2d

Step-by-step explanation:

2(3+d-1)

6+2d-2=6+(-2)+2d

=4+2d

You might be interested in
when the wimen sells 90 oranges Rs160 with dicount of 20%,how many oranges she sell by Rs112 with profit of 20%​
Fynjy0 [20]

She sold 42 oranges with profit 20%

Step-by-step explanation:

The woman sells 90 oranges by RS.160

This price with discount of 20%

We need to find how many oranges she sell by Rs.112 with profit of 20%​

  • Selling price = cost price - discount ⇒ discount case
  • Selling price = cost price + profit ⇒ profit case

Assume that cost price of an orange is x

∵ She sells 90 oranges with Rs.160

- Find the selling price of 1 orange by dividing 160 by 90

∴ The selling price of an orange = \frac{160}{90}=\frac{16}{9}

∵ She sold them with discount 20%

∵ The cost price of an orange is x

- Find the 20% of x

∵ Discount = 20% × x = \frac{20}{100} × x = 0.2x

- To find the selling price subtract 0.2x from x

∴ The selling price = x - 0.2x

∴ The selling price of an orange = 0.8x

- Equate 0.8x by \frac{16}{9} to find x

∵ 0.8x = \frac{16}{9}

- Divide both sides by 0.8

∴ x = \frac{20}{9}

Assume that the number of oranges is y

∵ She sell y oranges for Rs.112 with profit 20%

∵ The cost price of an orange is \frac{20}{9}

- Find 20% of \frac{20}{9}

∵ Profit = 20% × \frac{20}{9} = \frac{20}{100}.\frac{20}{9}=\frac{4}{9}

- Add \frac{4}{9} to cost price to find the selling price

∴ The selling price of an orange = \frac{20}{9} + \frac{4}{9}

∴ The selling price of an orange = \frac{24}{9}

- To find y divide 112 by selling price of an orange

∵ y = 112 ÷ \frac{24}{9}

∴ y = 42

She sold 42 oranges with profit 20%

Learn more:

You can learn more about percentage in brainly.com/question/12284722

#LearnwithBrainly

4 0
3 years ago
The area of a square is 4 square inches. what is the length of each side of the square
VladimirAG [237]
2 inches, because 2*2 =4
8 0
3 years ago
PLEASE HELP ME WITH THIS QUESTION. please and thank you
Ahat [919]

Associative property moves the parenthesis

Choice B

6 0
3 years ago
The area of a rectangular prism is 38 1/4 square meters the width of the garden is 4 1/2 meters find the length of the garden
bagirrra123 [75]
It's 3/5 because of the lenghth
3 0
3 years ago
Read 2 more answers
The length of a rectangle is 4 cm more than its width. The area of the rectangle is 96
Yakvenalex [24]

Answer:

12is the answer

Step-by-step explanation:

let the width be 2c

length*width =96

4*2c=96

8c=96

c=96/8

c=12

4 0
3 years ago
Other questions:
  • If 4f(x)+f(5-x)=x2<br><br> What is f(x)?
    8·1 answer
  • Answer step by step
    15·1 answer
  • A piano is hauled into space a distance 3 earth radii above the surface of the north pole and is then dropped. About how long wi
    5·1 answer
  • 1. Flight 202's arrival time is normally distributed with a mean arrival time of 4:30
    11·1 answer
  • PLS HELP ASAP PLS PLSPLS <br> What is the explicit formula for this sequence?<br> 6, 2, -2, -6, ...
    13·1 answer
  • 13. Yao has 8 hours to finish reading a 300-page book. He has already read 120 pages. Yao read 50
    8·1 answer
  • On the board, your teacher shows an example of finding the range.
    6·1 answer
  • John has 333 colored ribbons described below.
    7·2 answers
  • A solid wood cone 12 cm in diameter and 8 cm high sells for $1.19. A second wood cone is 17 cm in diameter and 12 cm high. the f
    13·1 answer
  • 10229,00 increased by 13,5%
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!