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
Tju [1.3M]
3 years ago
15

Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make

a total profit of $78. Using the equation 8 (x + 2.75) = 78, Rita determined that she needs to sell each necklace for $7 to make a total profit of $78. Which error did Rita make?
Mathematics
1 answer:
Tresset [83]3 years ago
3 0

Answer:

The error she made was that she was adding x and 2.75. She should subtract 2.75 from x.

Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.

Step-by-step explanation:

The error she made was that she was adding x and 2.75.

She should write the equation as 8 (x - 2.75) = 78; as she spends $2.75 to make a necklace.

By using the correct equation: 8 (x - 2.75) = 78

=> 8x - 22 = 78

=> 8x = 78 + 22

=> 8x = 100

=> x = 100/8

=> x = 12.5

Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.

Hope this helps you.

You might be interested in
Find each angle measure
Aloiza [94]

It would surely be helpful if you let us know which angles to measure!

4 0
3 years ago
Refer to the figure at the right. If
asambeis [7]

Answer:m∠1 = 145°

m∠2 = 35°

m∠3 = 35°

m∠4 = 145°

m∠5 = 145°

m∠6 = 35°

m∠7 = 35°

m∠8 = 145°

Step-by-step explanation:

3 0
3 years ago
Four friends bought tickets to the school play. If it cost then a total of $28, Which equation could be used to find how much ea
amm1812

Answer:

4x = $28

Step-by-step explanation:

5 0
3 years ago
Change the radians to degrees
Ivan
The method of changing a degree to a radian is to multiply with 1/180
5 0
3 years ago
Sally’s age is two times Sydney’s age. The sum of their age is 27. What is Sydney’s age?
masya89 [10]

Answer:

9

Step-by-step explanation:

18+9=27, answer=9......

7 0
3 years ago
Read 2 more answers
Other questions:
  • Grandma has 1/2 of her birthday cake left . she wants her 12 grandchildren to each get the same size piece of cake to take home
    14·2 answers
  • The pier is 200 meters long each board is 80 centimeters wide how many boards are in the pier
    10·2 answers
  • Urgent please help!!
    11·1 answer
  • 5x – 2= 8<br> Please help me
    8·1 answer
  • A nearby pond has 5 frogs, and the population doubles every year. The inequality 5(2)^t&gt;75, where t is the number of years, m
    10·1 answer
  • I need to know how to do it aswell
    14·2 answers
  • Which equation represents the line that perpendicular to the graph of 4x+3y=9and pases through (-2,3)
    10·1 answer
  • Solve the system by substitution.<br> y = 7x – 20<br> y = 2x
    14·1 answer
  • What is the coefficient of the first term in the expression 8x+3y+4
    6·1 answer
  • I WILL MARK BRAINLIEST
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!