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
juin [17]
3 years ago
7

The sum of two numbers is 10. Their difference is 5. Write a system of equations and solve for both numbers.

Mathematics
2 answers:
gayaneshka [121]3 years ago
6 0

Answer:

The two numbers are 7.5 and 2.5

Step-by-step explanation:

Givens

  • Larger number = x
  • Smaller number = y
  • Sum = 10
  • Difference =5

Equations

  • x + y = 10
  • x - y = 5

Solution

Add the 2 equations.

  • 2x = 15            Divide by 2
  • 2x/2 = 15/2     Divide
  • x = 7.5

==========

x + y = 10

  • 7.5 + y = 10
  • y = 10 - 7.5
  • y = 2.5

Answer

  • x = 7.5    (Larger number
  • y = 2.5    (smaller number)

adell [148]3 years ago
5 0

Answer:

x + x = 10

x - x = 5

2x = 10

x = 10/2

x = 5

Step-by-step explanation:


You might be interested in
Please help i have to turn in in 8 mins....thanks :)
pychu [463]

6√3

Step-by-step explanation:

6 is x. side across from right angle (12) is 2x. so 6x2 to get 12. missing side is x√3. so 6√3

6 0
3 years ago
Read 2 more answers
A circular disc has circumference 250 cm.<br> Calculate the radius of the disc.
nasty-shy [4]

\textit{circumference of a circle}\\\\ C=2\pi r ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=250 \end{cases}\implies 250=2\pi r\implies \cfrac{250}{2\pi }=r\implies \stackrel{cm}{39.79}\approx r

7 0
3 years ago
Which word phrase represents the numerical expression below? * 4+(27-10)
lorasvet [3.4K]

Answer:

4 plus the difference of 27 and 10

Step-by-step explanation:

6 0
3 years ago
What the correct answer now fast
Natali5045456 [20]

Answer:

y = 12.9

Step-by-step explanation:

To find the value of the side y, simply apply the law of cosines.

y^2 = (14)^2 + (9)^2 - 2(14)(9)cos(64)

y^2 = 196 + 81 - 110.47

y^2 = 166.53

y = 12.9

Therefore, your solution should be y = 12.9

Cheers.

7 0
3 years ago
In how many ways can 4 different contracts be distributed among 12 different firms, if no two contracts are awarded to the same
vagabundo [1.1K]

The first contract can go to any of 12 firms. The second can go to any of the remaining 11 firms, and so on. Finally, the 4th contract can go to any of the 9 firms that don't yet have a contract.

The number of ways the contracts can be awarded is

... 12×11×10×9 = 11,880

5 0
4 years ago
Other questions:
  • Trevor is swimming laps to raise money for the local food bank. He earns $1.85 per lap and has already swum 23 laps.
    9·1 answer
  • A gold bar has a mass of 11.3
    9·1 answer
  • 17.16 is 62.4% of what number?
    13·2 answers
  • (Will try to mark brainliest)Use similar triangles to determine the equation of the line with a slope of 1/2 that passes through
    6·1 answer
  • How do I make the equation in slope intercept form for No. 4?
    9·2 answers
  • F(x) = 4x - 1<br> g(x) = x2 - 2<br> (f+g)(9) = ?
    11·2 answers
  • What is a difference of squares that has a factor of x+8?
    7·2 answers
  • Naylah has 9 blocks of cheese.How many pizzas can she make if each pizza needs the given amount of cheese, 1/3 block, 1/5 block?
    12·1 answer
  • The table shows the lunch orders of 50 customers at the Lunch Bag. What decimal represents the fraction of customers that did No
    5·1 answer
  • Which expression is equivalent to √-80<br> O 4√5<br> O -4√√51<br> 4√√51<br> O 4√√5
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!