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
krok68 [10]
4 years ago
12

The sum of two numbers is 7 and there difference is 5

Mathematics
2 answers:
Yuri [45]4 years ago
5 0

Elimination frenzy.

  x+y=7

+(x-y=5)

---------------

2x=12

x=6

6+y=7

y=1

answer: 6 and 1

____ [38]4 years ago
4 0

Answer:

Step-by-step explanation:

Equations:

x + y = 7

x - y = 3

Add and solve for "x":

2x = 10

 

x = 5

Solve for "y":

x + y = 7

5 + y = 7

y = 2

You might be interested in
I need help asap Which attribute matches the given triangle the bottom answer was. must have an obtuse angle ​
Temka [501]

Answer:

neither of those are obtuse angles. the "must include a 90 angle" is the right triangle. the "has at least 2 equal side" is an equilateral triangle

7 0
4 years ago
Help ehehehheheherhrurududud
Setler [38]

Answer:

99.8, 101.1, 106.3, 110.5

8 0
3 years ago
If a polynomial function f(x) has roots 3 and StartRoot 7 EndRoot, what must also be a root of f(x)?
Ivenika [448]

Answer:

–√(7) must also be a root of f(x)

Step-by-step explanation:

Given that the roots of an equation is 3 and √(7). This means that x = 3 or √(7). Therefore, the function is definitely going to be:

f(x) = (x – 3)(x² – 7)

This is because we are dealing with √(7) and what brought about √(7) was x² = 7.

If this is the case, we know that x² = 7 will give

x = ±√(7)

Hence, our roots are x = 3 or √(7) or –√(7). Therefore, –√(7) must also be a root of f(x).

4 0
3 years ago
Read 2 more answers
Add - (remember only like terms can be combined when add/subtract)<br><br> (3x + 5) + (2x - 8)
Afina-wow [57]

Answer:

5x-3

Step-by-step explanation:

(3x + 5) + (2x - 8)

3x+5+2x-8

Bringing the like terms together,

3x+2x+5-8

5x-3

7 0
3 years ago
Write the sentence as an equation.<br> 378 Is the same as w times 241, decreased by 223
never [62]

Answer:

it should be 378 = w(241 - 223)

5 0
3 years ago
Read 2 more answers
Other questions:
  • Find the area of a polygon with the vertices of A (0,1) B (0,5) C (4,5) D (6,1
    5·1 answer
  • (28 ⋅ 5−5 ⋅ 190)−2 ⋅ ⋅ 228 (5 points)<br><br> Write your answer in simplified form.
    9·1 answer
  • Given ƒ(x) = 8x + 25, find x when ƒ(x) = 9.<br> A) −2 <br> B) −1 <br> C) 0 <br> D) 2
    14·2 answers
  • Hepl...<br>I will mark as brainliest​
    7·2 answers
  • If you drive your car for three hours on average speed of 130 KM per hour how far did you go
    15·2 answers
  • What does B equal if the problem is y=5/-9x+B
    15·1 answer
  • Find: tan A<br><br> 1.8/10<br> 2.6/8<br> 3.10/6<br> 4.8/6
    10·1 answer
  • A car moving at a constant speed passed a timing device at t=0. After 9 seconds, the car has
    7·1 answer
  • Given f(x) = 21x + 12, find f(5)
    12·1 answer
  • I don't get thissssssssssssssssss
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!