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
Aneli [31]
3 years ago
6

21y+7x=56? what is the value of X

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
4 0

Answer:

x = 8 - 3y

Step-by-step explanation:

21y+7x=56\\\\21y-21y+7x=56-21y\\\\7x=56-21y\\\\\frac{7x=56-21y}{7}\\\\\boxed{x=8-3y}

Hope this helps.

You might be interested in
What is the sale price of $160 airpods with an 18% discount?
Ahat [919]

Answer:

$131.20

Step-by-step explanation:

$160 is the full price, so it is 100% of the full price.

With a discount of 18%, you pay 100% - 18% = 82% of the full price.

82% of $160 =

= 0.82 * $160

= $131.20

Answer: $131.20

7 0
3 years ago
Please help steps thx
ExtremeBDS [4]

Answer:

240 cubic metres

Step-by-step explanation:

I'm not really sure for Q17 but I do know Q18.

Q18. Volume of cuboid = Length×Breadth×Height

=12×4×5

=240 cubic metres

hope it helps!!!

8 0
3 years ago
Please help it's urgent.
arlik [135]

Answer:

It is the second triangle.

Step-by-step explanation:

This is because the area of the square is given as 25^2 as the perpendicular, 144^2 as the base, and the hypotenuse is 169^2.

Length of the perpendicular = 5^2 (Because 25^2 / 5^2)

Length of the base = 12^2

Length of the hypotenuse = 13^2

So, the Pythagoras theorem is,

=> H^{2} = P^{2} + B^{2}

=> 13^{2} =12^{2} +5^{2}

This is true, because, 13*13 = 12*12 + 5*5

=> 169 = 144 + 25

=> 169 = 169

If my answer helped, kindly mark me as the brainliest!!

Thanks!!

3 0
3 years ago
I need help with geometry:
nikklg [1K]

Answer:

x = 5

Step-by-step explanation:

6/18 = x/(20-x)

1/3 = x/(20-x) Multiply both sides by 20-x

(20-x)/3 = x Multiply both sides by 3

20-x = 3x Add x in both sides

20 = 4x Divide both sides by 4

5 = x

3 0
2 years ago
​​​​​​​PLEASE HELP :((((
sertanlavr [38]

88(3.7+4.3)-2*2.6

88(8)-2*2.6

704-2*2.6

704-5.2

698.8

I hope it helps!

Please mark Brainliest if it does!:-)

5 0
2 years ago
Other questions:
  • HELP ASAP WITH THIS QUESTION
    11·2 answers
  • Some one help me with this.
    6·1 answer
  • Which is the graph of 3x – 5y = 15?
    11·1 answer
  • What is the answer???
    12·2 answers
  • 345mi +3hr+ 15 mph the slowest car traveled
    10·1 answer
  • What is 921,444 rounded to the nearest hundred thousand?
    14·1 answer
  • 1.5 horas para realizar un afinamiento; 0,2 horas para limpiar la bateria; 0,75 horas para cambiar el aceite y el filtro del mot
    8·1 answer
  • This is science but can someone pls help me ill give brainliest<33
    15·1 answer
  • Consider the rectangle, Whats the area?
    15·2 answers
  • 1. On Wednesday you saw 12 robins on one tree and
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!