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
1. At the Jackson Concrete Company, the regular work week is 40 hours. If an employee works more than 40 hours per week they are
WINSTONCH [101]
1. Jason worked 44 hours, so will get paid for 46: 44 + (1/2)*4 = 46. His gross pay will be $11.35×46 = $522.10

2. Veronica's pay for 52 weeks is $1036×52 = $53,872.

3. Glenda's gross pay will be $9.45×27 = $255.15

4. Juanita's pay for the week wil be $275 + 4%×(8756-3000) = $505.24
4 0
3 years ago
Midpoint Between Two Given Points
kondaur [170]

Answer:

(1, -7)

Step-by-step explanation:

the difference between -4 & 6 is 10 so you add 5 (half) to -4 or subtract from 6, this gives you 1

you do the same for -9 and -5, the midpoint for those being -7, I hope this helps

4 0
3 years ago
Please answer a and b
Assoli18 [71]

Answer:

(-2,1) (-1,1),(0,1)

Step-by-step explanation:

find the gradient first

6 0
3 years ago
que condiciones debe cumplir las medidas de un triangulo para que puedas asegurar que es un triangulo rectangulo
nirvana33 [79]

Answer:

ENGLISH

One of the angles must equal 90 degrees and the other two angles must add up to 90 degrees.

SPANISH TRANSLATION

Uno de los ángulos debe ser igual a 90 grados y los otros dos ángulos deben sumar 90 grados.

3 0
3 years ago
The roof of this garden shed has a gradient of 0.35. find the height of the shed​
Ilya [14]

The height of the shed is 2.325 m

The complete question is

The roof of a lean-to-garden shed has a gradient of 0.35.find the height....they have given the base as 1.5m and a shorter height 1.8m its like a house

<h3>What is a right Triangle ?</h3>

In a Triangle when one angle is 90 degree , the triangle is called Right Triangle .

Structure of the house is a right triangle with base = 1.5m

(height of that triangle)/1.5 = 35/100

height of that triangle = 1.5*0.35 = 0.5250

Ans: greater height of the lean-to = 1.8 + 0.5250 = 2.325 meters.

The height of the shed is 2.325 m.

To know more about Right Triangle

brainly.com/question/6322314

#SPJ1

6 0
2 years ago
Other questions:
  • Y-3=1/2x+1 in y=ax+b form
    6·1 answer
  • George borrowed $1,895.50 for two years. The total amount he repaid was $2,189.38. How much interest did he pay for the loan?
    15·2 answers
  • How to simplify 9/18??
    6·1 answer
  • You invest $3,635 in an investment with annual rate of return 6%. How much will the investment be worth after 8 years?
    9·2 answers
  • HELP I NEED HELP ASAP 11 and 12 WILL MARK BRAINLIST
    5·2 answers
  • Could someone help and explain it to me?
    9·1 answer
  • # Express the equations in perpendicular form .
    14·1 answer
  • What is 3 ÷ 2 with step please
    13·1 answer
  • What is the scale factor from AABC to ADEF?
    6·1 answer
  • How much food can this container hold? Express your answer in terms of it. 277 in. 3 in. 9 in. 187 in 3 811 in. Ort in. 3 00​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!