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]
2 years ago
8

Solve the simultaneous equations 5x+2y=25 5x-y=10

Mathematics
1 answer:
Pavlova-9 [17]2 years ago
4 0

<em>5x + 2y = 25;</em>

<em>5x + 2y = 25;5x - y = 10;</em>

5x + 2y = 25;

5x = 10 + y;

(10 + y) + 2y = 25;

5x = 10 + y;

10 + 3y = 25;

5x = 10 + y;

3y = 15;

5x = 10 + y;

y = 5;

5x = 10 + y;

y = 5;

5x = 10 + 5;

y = 5;

5x = 15;

y = 5;

x = 3.

Answer: (3; 5).

You might be interested in
Spring tides are extremely high and extremely low. This is created when the sun and moon pull together.
Andrej [43]

Answer:

yep true

Step-by-step explanation:

facts u know what u talking bout

8 0
2 years ago
5x^2-7x=4x^2-10 solve
Luda [366]

Answer:

x = 0, x = - 3

Step-by-step explanation:

Given

5x² - 7x = 4x² - 10 ← subtract 4x² - 10x from both sides

x² + 3x = 0 ← in standard form

Factor out x from each term

x(x + 3) = 0

Equate each factor to zero and solve for x

x = 0

x + 3 = 0 ⇒ x = - 3

5 0
3 years ago
Please help
scoray [572]

Answer:

2/24 ft3

Step-by-step explanation: The formula for volume is the area of the base times the height.

1/8 x 2/3= 2/24  

It would be cubed though because your multiplying ft squared by ft



5 0
2 years ago
If f(7)=22, then f^-1(f(7))=?<br> Please help!!
alexira [117]

Answer:

  7

Step-by-step explanation:

In general, the point of an inverse function is to show you the value that gives a particular function value. That is, ...

  f^{-1}(22)=7\\\\f^{-1}(f(x))=x\\\\f^{-1}(f(7))=7

7 0
2 years ago
First drop down : 1. Cylinder 2.sphere
Hunter-Best [27]

Answer:

Below.

Step-by-step explanation:

To find the volume of the silo find the volum of the hemisphere with radius of 15 feet and add the volume of the cylinder with a radius of 15 feet and a height of (100 - 15) = 85 feet.

The total volume = 1/2 * 4/3 π (15)^3  + π (15)^2 * 85

= 67151.5 ft^3.

8 0
2 years ago
Read 2 more answers
Other questions:
  • How much sleep does a jaguar get in 1 year
    7·1 answer
  • Find the slope of the line that contains these points (-2,5) (-4,11)
    5·2 answers
  • Plz help with this math problem
    5·2 answers
  • Simplify: (x8y3z−2)1/2
    12·2 answers
  • What is this I need help−4(8k+5)−5(9k+4)
    6·2 answers
  • On our way to physical her parents Jennifer drives 265 miles in five hours what is her average rate of ace of speed in miles per
    15·1 answer
  • How to turn a fraction into a mixed number?
    6·1 answer
  • Melanie read 45 pages out of 100 page book her younger sister read half of a 10 page book who read a greater fraction of her boo
    7·2 answers
  • ABCD, EFGH, and HIJK are squares.
    14·1 answer
  • What is the equation of a line with a slope of 6 and a y-intercept of -2?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!