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
lawyer [7]
3 years ago
15

The cost of 11 dvds and 7 cds is 172.50 and the cost of 10 dvds and 7 cds is 155.80. How much does a cd and dvd cost?

Mathematics
1 answer:
AleksandrR [38]3 years ago
5 0

Answer:

The question has a mistake

Step-by-step explanation:

11d+7c= 172.5

10d+7c= 155.8

By subtraction;

1d+ 0c = 16.7

1d = 16.7

11×16.7+7c=172.5

7c = 172.5-11*16.7

You will get a negative answer yet the cost cannot be negative.

You might be interested in
Mr. Martin is giving a math test next period. The test, which is worth 100 points, has 35 problems. Each problem is worth either
fenix001 [56]

Answer:

x + y = 100

5x + 2y = 35

Step-by-step explanation:

3 0
2 years ago
Fraction less than 1/2. 3/4 1/6 6/12 4/10 5/8 5/2
N76 [4]
Fractions less than 1/2 are 1/6 & 4/10.
Fractions greater than 1 are 5/4 & 15/12.
Fractions closer to 0 than to 1 are 1/8, 1/4, & 3/10.
5 0
3 years ago
PLZ HELP!!!! ISSA PROBLEM!!!!! WILL GIVE BRAINLIEST!!!!!
UNO [17]
The answer would be
130 degrees

4 0
3 years ago
Read 2 more answers
Dexter has four different coins in his pocket. He randomly selects a coin from his pocket, replaces it, and selects another coin
skad [1K]

Answer:

Step-by-step explanation:

So what is the probability of the selecting the first coin? There are total of 4 different coins, so the probability of getting a dime is 1 out of 4, then he replace it, then again the probability stays the same, he still has 1 out 4 chance of getting a dime. So then it's just 1/4*1/4=1/16 :)

4 0
3 years ago
20−6+4k=2−2k plz solve
Orlov [11]

Answer:

-2

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • PleAse help and show how you got it if you don’t mind
    12·1 answer
  • What unit do you use to measure the mass of a watermelon?
    5·1 answer
  • What is a fraction that compares two equivalent measurements?
    12·1 answer
  • Please answer ASAP Amanda used 24 grams of paint to paint a wooden cube. When it dried, she cut the cube into 8 equal cubes. How
    13·1 answer
  • Whole numbers greater than 20 but less than 27
    7·1 answer
  • The area of a gymnasium floor is 264 aquare yards. The floor is 11 yards wide. How long is the foor
    14·1 answer
  • 1.6y + y - 4/15 y + 1 1/6y = 2 1/3 Please help!
    9·2 answers
  • Help with math please!!
    11·1 answer
  • An employee at a paint manufacturing plant is mixing highly pigmented paint with some paint that is less pigmented. In addition
    9·1 answer
  • Help i really have no clue not sure where to start
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!