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
olga nikolaevna [1]
4 years ago
15

If 3y+5=7x, then 21y-49x=?

Mathematics
1 answer:
FromTheMoon [43]4 years ago
3 0
3y+5=7x

3y=7x-5

y=(7x-5)/3

...

21y-49x becomes

7(7x-5)-49x

49x-35-49x

-35
You might be interested in
50<br> Σ (4n - 1) = [? ]<br> 1
Kay [80]

Answer:

5050

Step-by-step explanation:

3 0
3 years ago
The graph shows two linear functions, f and g. Which formula BEST represents g(x)?
Softa [21]

Answer: C

g(x) = 1/2 f (x)

Step-by-step explanation:

3 0
3 years ago
Which which value is not located between square root 9/3 2n
tangare [24]

3 and -3 are said to be the square roots of 9. A square root is written with a radical symbol √ and the number or expression inside the radical symbol, below denoted a, is called the radicand. ... Negative numbers don't have real square roots since a square is either positive or 0.

7 0
4 years ago
An artist charges $980 for a portrait but gives a 5% discount. Calculate the cash price of the portrait.
Scrat [10]

Answer:

Step-by-step explanation:

1. A boutique is offering a 15% discount on a dress. Calculate the cash price for the dress if the marked price is $2300.

2. An artist charges $980 for a portrait but gives a 5% discount. Calculate the cash price of the portrait.

3. A television set has a selling price of $1950. A 10% discount is offered for cash. What amount is the cash price to the customer?

4. A store is having a sale on dining sets. The marked price is $47,320, however a discount of 12% is being offered for cash. Calculate the cash price of the dining set.

5. A tailor charges $2487 for a suit but gives a discount of 5%. What is the cash price for the suit?

6. A washing machine has a marked price of $33,000 and a discount of 6% is given for cash. What is the cash price of the washing machine?

7. Laura sees a summer dress in a store with a marked price of $1303. A discount of 9% is given on cash. What is the cash price of the summer dress?

Light behaves mainly like a wave but it can also be considered to consist of tiny packages of energy called photons. Photons carry a fixed amount of energy but have no mass. They also found that increasing the intensity of light increased the number of electrons ejected, but not their speed.

4 0
2 years ago
Which Set of Ordered Pairs Doesn't Represent A Function DUE TONIGHT WILL GIVE<br> BRAINLIEST
vlada-n [284]

Answer:

B

Step-by-step explanation:

In the first two coordinates, they share an x-value: 5

8 0
2 years ago
Other questions:
  • On a map drawn to scale, 2 cm represents 870 km. How long would a line segment be thats represents 130 kilometers?​
    14·1 answer
  • The perimeter of the pentagon below is 62 units. Find the length of side VW.
    5·1 answer
  • Identify the unit rate in the graph.<br> A) $5.50 <br> B) $11.00 <br> C) $22.00 <br> D) $27.50
    14·1 answer
  • Which is bigger 5/9 or 11/20
    12·1 answer
  • The table shows the results of choosing one card from a deck of cards, recording the suit, and then replacing the card. Find the
    12·1 answer
  • Which equation can be used to find 60 percent of 50?
    9·2 answers
  • Select the correct answer. Which graph represents the solution to this inequality? A. B. C .
    7·1 answer
  • Factories the following question ​
    6·1 answer
  • Using the information in the Box-and-Whisker plot below, what is the 1st
    5·1 answer
  • What is 5(​x​ + 2)+10 simlified?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!