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
kondor19780726 [428]
3 years ago
7

The sum of two numbers is 18 their difference is 8

Mathematics
2 answers:
Anna007 [38]3 years ago
4 0

When we write out the system of equations, we will get:

x+y=18

x-y=8

 We can then use elimination to get just one variable.

 x+y=18

+x-y=  8

 Which gives us:   2x=26

 We then divide by 2 and get:    x=13

 We next plug that into one of the two equations and solve for the other variable:    (13)+y=18

We subtract 13 from both sides and get:   y=5

So the two numbers are 13 and 5.

~ I hope this helped, and I would appreciate Brainliest. ♡ ~ ( I request this to all the lengthy answers I give ! )

hram777 [196]3 years ago
3 0

<em><u></u></em>

<em><u>Answer:</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>13 and 5</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>Step-by-step explanation:</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>x+y=18</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>x-y=8</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>_____</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>2x=26</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>x=13</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>So the first number must be 13</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>13+y=18</u></em>

<em><u></u></em>

<em><u></u></em>

<em><u>y=5</u></em>

<em><u></u></em>

<em><u></u></em>

<u><em>And the second number must be 5</em></u>

You might be interested in
Please solve this quick.
Ivenika [448]

Should be JK

If not sorry

6 0
2 years ago
Help I will make you a brainllest
Yuliya22 [10]

Answer:

Y || Z

Step-by-step explanation:

We know that Y⊥B, and Z⊥B, which means both Y and Z are perpendicular to B, meaning that they both create 90° angles with B, and from that, we can make the conclusion that Y || Z

8 0
4 years ago
Read 2 more answers
A grasshopper covered a distance of 5 yards in 9 equal hops.How many yards did the grasshopper travel on each hop?
Luda [366]
5/9 = .55555555555 yards traveled per hop
15/9 = 1.6666667 feet per hop
5 0
3 years ago
Read 2 more answers
A school wants to buy a chalkboard that measures 4 feet by 6 feet. The chalkboard costs $10.00 per square foot. How much will th
Harlamova29_29 [7]

Answer:

$27.87

Step-by-step explanation:

if it is 1 by 2 you would multiply 1 x 2 and get 2 then multiply 13.87 x 2 to get 27.87 and it leaves you with $27.87

7 0
3 years ago
Read 2 more answers
How many grams are equal to 400 kg?
Yuki888 [10]

Step-by-step explanation:

1kg=1000g

400kg=400*1000

=400000

Therefore 400kg =400000g

7 0
3 years ago
Other questions:
  • The graph shows the solution to which system of inequalities?
    11·1 answer
  • Maria ran four laps of the track at an even pace. If it took six minutes to run the first three laps how long did it take to run
    9·2 answers
  • Name 5 fractions that are near 4/12 but not equivalent
    10·1 answer
  • Help me find the missing angles
    8·1 answer
  • How to solve for linear equation 2/x+y/4=3/2
    9·2 answers
  • Solve the equation 21p-4=12p+7/2
    14·1 answer
  • Jason is pulling a box across the room. He is pulling with a force of 19 newtons and his arm is making a 30 angle with the horiz
    9·2 answers
  • According to a study done by Nick Wilson of Otago University Wellington, the probability a randomly selected
    10·1 answer
  • 28. Marta Sanchez purchased a sweater for $15.67, a pair of socks for $2.13, and a bracelet for $6.78. For all
    5·1 answer
  • HELP PLS NEED THIS ASAP
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!