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
velikii [3]
3 years ago
8

X + y = 26 3x + y = 56 Please help me! Show Working Please

Mathematics
2 answers:
Marina CMI [18]3 years ago
8 0

Step-by-step explanation:

(X + y = 26) (-3)

3x + y = 56

____________

- 3 x - 3y = - <u>78</u><u> </u><u> </u><u>Note</u>:cross <em>3x</em> and<em>-3x</em> from both equations (they're opposite)

3x +y =56

____________

-3y +y = - 78 +56

-2y = - 22

y =  \frac{ - 22}{ - 2}  = 11

____________

So we replace y in eq 2: (to obtain x)

3x + 11 =56

3x =45

X =15

melomori [17]3 years ago
4 0

Answer:

x = 15

y = 11

Step-by-step explanation:

15+11=26

(3*15)+11=56

You might be interested in
Meg is packing a shipping conditier.
Bingel [31]

Step-by-step explanation:

Jesus Christ had dreads so shake em', I ain't got none but I'm planning on growing some

7 0
3 years ago
Djxjicjcjcicifiddiciicifididididjdjhhh​
Sedbober [7]

Answer:

18

Step-by-step explanation:

Let the unknown number be = x

Then,

x + 16 = 34

=> x = 34 - 16

=> x = 18 (Ans)

7 0
3 years ago
Read 2 more answers
Juan decided to start saving for college. He deposited $500 into an account which earns 4% simple annual interest. At the end of
Norma-Jean [14]

Answer:

$5504

Step-by-step explanation:

Given that :

Principal amount = $500

Interest = 4% simple interest annually

Amount added at the end of each year :

First year:

Principal + (Principal * rate * time)

500 + (500 * 0.04) = 520

$520 + $250 = $770

2nd year:

770 + (770 * 0.04) = $800.80

$800.80 + $250 = 1050.80

3rd year:

1050.8 + (1050.8 * 4) = 5254

$5254 + 250 = $5504

5 0
3 years ago
The tallest building in Africa is the Carlton Centre in Johannesburg, South Africa. What is the distance from the top of this 73
Contact [7]

Answer:

b = 33 miles

Step-by-step explanation:

The illustration forms a right angled triangle. The opposite side of the triangle is where we are looking for . The adjacent side is the radius 4000 miles.

5280 ft = 1 mile

735 ft = ? miles

cross multiply

735/5280

miles = 0.13920454545  miles

The hypotenuse side is the height of the building + 4000 miles = 0.140 + 4000 = 4000.14  miles

using Pythagoras theorem

c² = a² + b²

c = 4000.14

a = 4000

4000.14² = 4000² + b²

b² = 4000.14² - 4000²

b² = 16001120.0196  - 16000000

b² = 1120.0196

b = √1120.0196

b = 33.4666938911

b = 33 miles

3 0
3 years ago
Solve this please: a=46c solve for c
Firlakuza [10]
a = 46c\\c = \frac{a}{46}
7 0
4 years ago
Other questions:
  • Karl deposits $900 in a CD. He will earn 5% compound interest each year for five years. How much interest will Karl earn in 5 yr
    7·1 answer
  • Need help with this math​
    13·1 answer
  • Which expression represents the number of cents in d dimes and n nickels?
    7·1 answer
  • I will give you 10B points plus mark someone again for the Brainliest if you get this right. a:15 b:7 c:4
    12·1 answer
  • What do the following two equations represent?
    5·1 answer
  • Find the standard form of the equation of the ellipse with the given characteristics.
    5·1 answer
  • I NEED HELP ON THIS CONSTRUCTED RESPONSE! :(
    5·1 answer
  • There are 161600 drivers in uk over 75 years off age
    10·1 answer
  • Complete the solution of the equation. Find the value of y when x equals 7. x - 4y = 19 Enter the correct answer.​
    8·2 answers
  • Which output in this table is incorrect
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!