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
Oksi-84 [34.3K]
3 years ago
14

A disk costs $3 more than a tape. Rolex bought five disks and two tapes. The total cost was $120. What was the price of a disk?

Mathematics
1 answer:
Nikitich [7]3 years ago
6 0
Each disk would have to be $18 each
You might be interested in
Show your work!!!!!!!!!!!!!!!!!!!!!!!
elena-14-01-66 [18.8K]

Answer:

Here is my workk

Step-by-step explanation:

WORKKKKK

5 0
3 years ago
Pls I don’t know what to do
Vesnalui [34]

Answer:

A and C the first and third cause when u are finding the y-intercept you have to put x as zero

4 0
3 years ago
Read 2 more answers
In your own words, describe slope.
tiny-mole [99]

Answer:

it is a downward

discline

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A team is selling discount cards as a fundraiser. The table shows the number of cards sold and the remaining amount of money nee
kondor19780726 [428]

Answer: negative.


Step-by-step explanation:

We know that the slope of the line \frac{\text{change in y}}{\text{change in x}}

Therefore, the slope for the given data=\frac{y_2-y_1}{x_2-x_1}

\Rightarrow\ Slope=\frac{795-875}{20-10}\\=\frac{-80}{10}\\=-8...,\text{which is negative.}

Hence, the word which describes the slope of the line representing the data in the table = negative.

8 0
3 years ago
Read 2 more answers
A local sorority sold hot dogs and bratwursts at the spring fling picnics. The first day they sold 8 dozen hot dogs and 13 dozen
kicyunya [14]

Answer:

1 hot dog costs $0.75

1 bratwurst costs $1.35

Step-by-step explanation:

Let x and y be the price per dozen of hot dogs and bratwursts respectively.

The first day they sold 8 dozen hot dogs and 13 dozen bratwursts for ​$282.60

8x + 13y = 282.60

The second day they sold 10 dozen hot dogs and 15 dozen bratwursts for a total of ​$333.00

10x + 15y = 333

and we have the linear system

<em>8x + 13y = 282.60 </em>

<em>10x + 15y = 333 </em>

which can be written in matrix form as

\bf \left(\begin{array}{cc}8&13\\10&15\end{array}\right)\left(\begin{array}{c}x\\ y\end{array}\right)=\left(\begin{array}{c}282.60\\333\end{array}\right)

The solution would be given by

\bf \left(\begin{array}{c}x\\ y\end{array}\right)=\left(\begin{array}{cc}8&13\\10&15\end{array}\right)^{-1}\left(\begin{array}{c}282.60\\333\end{array}\right)

We have  

\bf \left(\begin{array}{cc}8&13\\10&15\end{array}\right)^{-1}=\left(\begin{array}{cc}-3/2&13/10\\1&-4/5\end{array}\right)

hence

\bf \left(\begin{array}{c}x\\ y\end{array}\right)=\left(\begin{array}{cc}-3/2&13/10\\1&-4/5\end{array}\right)\left(\begin{array}{c}282.60\\333\end{array}\right)=\left(\begin{array}{c}9\\ 16.2\end{array}\right)

Now,

if a dozen hot dogs cost $9, 1 hot dog costs 9/12 = $0.75

if a dozen bratwursts cost $16.2, 1 bratwurst costs 16.2/12 = $1.35

4 0
3 years ago
Other questions:
  • Can I help me with this?
    5·1 answer
  • How do I divide up this large shape?
    10·1 answer
  • Multiply: (5t - 4)(4t + 5)
    8·1 answer
  • 0,2(7) = ?<br> please help me
    7·2 answers
  • Please help me to solve this question.
    13·1 answer
  • One real life application of circles is?
    12·1 answer
  • A salesperson works 40 hours per week at a job where he has two options for being paid. Option A is an hourly wage of ​$28. Opti
    10·2 answers
  • A small aircraft flies a 2160-mi round trip in a 45 mi/h wind. Find the average rate of speed for the trip if the aircraft can f
    13·1 answer
  • Helpppppppppppppppppppppppp plzzzzzzzzzzzzzzzzzzzz
    11·2 answers
  • G The swimmer's legs appear shorter while in teh pool because of the of lights
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!