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il63 [147K]
2 years ago
10

The sum of two numbers is 57. The larger number is three less than four times the smaller number. Find the numbers pls help i am

timed
Mathematics
2 answers:
Andrej [43]2 years ago
8 0

Answer:

10.8 and 46.2.

Step-by-step explanation:

insens350 [35]2 years ago
4 0

Answer: The numbers are 10.8 and 46.2.

Step-by-step explanation: The sum of two numbers is 57.

x + y = 57

Assume x is the larger number.

x - 3 = 4y

x = 4y + 3

Use subsitution.

4y + 3 + y = 57

y = -4y - 3 + 57

y = -4y + 54

5y = 54

y = 10.8

Plug in y.

x + 10.8 = 57

x = 46.2

Check.

46.2 - 3 = 4(10.8)

43.2 = 43.2

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Pachacha [2.7K]

Answer:

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Step-by-step explanation:

Here, the given function is p(x)=3x^5+2x^2 - 5

Now, the given root of the function is ( 3x +5)

Now, if ( 3 x +  5) = 0,

we get x = - 5/3

So, the zero of the given polynomial is x = -5/3

Then,  x = -5/3, p(x)  =0 ⇒   ( 3 x + 5) is a FACTOR of p(x)

Now, let us find the value of function at x = -5/3

Substitute x = -5/3 in the given function p(x), we get:

p(x)=3x^5+2x^2 - 5  \implies p(\frac{-5}{3})  = 3(\frac{-5}{3})^5 + 2(\frac{-5}{3})^2 - 5\\= 3(\frac{-3,125}{243}) + 2(\frac{25}{9})  - 5\\= (\frac{-3,125}{81}) + (\frac{50}{9})  - 5\\= -38.580 + 5.56  - 5  =  -38.02\\\implies p(\frac{-5}{3})  = -38.02

Now, as p(-5/3) ≠  0 So, (3x +5) is NOT A FACTOR of p(x)

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3 years ago
What goes on the lines I don’t understand the problem
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Answer:

Step-by-step explanation:

a). Let the number of spoons = x

And number of forks = y

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b). Now we can convert these equations into the slope-intercept form.

x + y = 10 ⇒ y = -x + 10

Table for input output values,

x        2         4          6          

y        8         6          4                

5x + 3y = 42

3y = -5x + 42

y = -\frac{5}{3}x+14

x        0           3          6        

y       14           9          4                  

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3 years ago
Solve for a <br> 9a² = 16a<br> College Intermediate Algebra
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We want to solve 9a² = 16a for a.

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Since a = 0 is already solved we work on the other equation.

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