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
Misha Larkins [42]
3 years ago
7

The sum of two numbers is 36 twice the first number minus the second number is 6 find the numbers

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
3 0

Answer:

14, 22

Step-by-step explanation:

x+y = 36

2×x - y = 6

=> x = 36 - y

=> 2×(36 - y) - y = 6

72 - 2y - y = 6

-3y = -66

3y = 66

y = 22

=> x = 36 - 22 = 14

You might be interested in
Solve for j: J/-2+7=-12
Anestetic [448]

Answer:

J=38

Step-by-step explanation:

Subtract 7 to both sides so J/-2=-19

Then multiply -2 to both sides to get -19 times -2

That equals to 38

6 0
3 years ago
A packaging company is planning is in the planning stages of creating a box that include a three dimensional support inside the
Oliga [24]

Answer:

The length of the diagonal support is 69 feet.

Step-by-step explanation:

Dimensions of the box: length = 6 feet

                                       width = 5 feet

                                       height = 8 feet

The diagonal support relates with the diagonal of the base and the height.

From the base of the box, let the length of its diagonal be represented by x. Applying Pythagoras theorem;

/Hyp/^{2} = /Adj 1/^{2} + /Adj 2/^{2}

x^{2} = 6^{2} + 5^{2}

x^{2} = 36 + 25

   = 61

x = \sqrt{61}

  = 7.81

let the length of the diagonal support be represented by l. So that;

/Hyp/^{2} = /Adj 1/^{2} + /Adj 2/^{2}

l^{2} = x^{2} + 8^{2}

  = \sqrt{61} + 64

l  = \sqrt{\sqrt{61} + 64 }

  = 61 + 8

  = 69

Thus, the length of the diagonal support is 69 feet.

6 0
3 years ago
Consider the differential equation y'' − y' − 30y = 0. Verify that the functions e−5x and e6x form a fundamental set of solution
Alex Ar [27]

Answer:

Step-by-step explanation:

We have to take the derivatives for both functions and replace in the differential equation. Hence

for y=e^{-5x}:

y(x)=e^{-5x}\\y'(x)=-5e^{-5x}\\y''(x)=25e^{-5x}\\

for y=e^{6x}:

y(x)=e^{6x}\\y'(x)=6e^{6x}\\y''(x)=36e^{6x}\\

Now we replace in the differential equation  y'' − y' − 30y = 0

for y=e^{-5x}:

25e^{-5x}+5e^{-5x}-30e^{-5x}=0\\25+5-30=0

for y=e^{6x}:

36e^{6x}-6e^{6x}-30=0\\36-6+30=0

Now, to know if both function are linearly independent we calculate the Wronskian

W(f,g)=fg'-f'g

W(e^{-5x},e^{6x})=(e^{-5x})(6e^{6x})-(-5e^{-5x})(e^{6x})\neq 0

I hope this is useful for you

Best regard

7 0
3 years ago
What is 13 hours after 4:00 am.
kupik [55]
I believe it would be 5:00 pm, because 12 hours after 4:00 am is 4:00 pm, plus one hour is 5:00pm.
8 0
3 years ago
Read 2 more answers
Is half the sum of two and a number multiplied by itself three times linear? (and how would I write it as a mathematical express
castortr0y [4]
I’m not sure if it’s linear but u write it as 2 divided by 2 to the power of three
6 0
3 years ago
Other questions:
  • BRAINLIESTT!!!!!! PLEASE ANSWER ASAP
    9·1 answer
  • 5y+33+6y into distributive property
    12·2 answers
  • Write an equation of a line that passes through (3,0) and is parallel to line y=2x+5
    10·1 answer
  • Can someone explain this differentiation question to me? I can differentiate but then I'm not sure what I am doing
    10·1 answer
  • Someone help me fast please What is the perimeter of△EFG?
    12·1 answer
  • Can you help me please
    14·2 answers
  • The perimeter of the base of a right square pyramid is 32 cm.
    6·1 answer
  • Brianna babysits on the weekend. She charges $7 per hour. Last weekend she made $63. How many hours did she babysit?
    10·1 answer
  • HELP DUE IN 2 MINUTES
    10·1 answer
  • Matt buys 9 cookies, and of them are chocolate chip. How many chocolate chip cookies did he buy? A .3 cookies B. 6 cookies C.8 c
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!