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katrin2010 [14]
4 years ago
9

Determine whether 4 is a solution of the equation 9x+7=40. Is 4 a​ solution?

Mathematics
2 answers:
Allisa [31]4 years ago
5 0

Plug in 4 for x

9(4) + 7 = 40

36 + 7 = 40

43 ≠ 40

No, 4 is not a solution

hope this helps

notka56 [123]4 years ago
4 0

Question:

Determine whether 4 is a solution of the equation 9x+7=40.

Is 4 a​ solution?

Solution:

9(4) + 7 = 40

= 36 + 7

= 43

Final Answer:

4 is not a solution

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6 0
2 years ago
Which ordered pair is the solution to the system of equations?
tiny-mole [99]

Answer:

You can use Gaussian Elimination.

Double both sides of the first equation and add the second equation.

6x + 4y = 8

5x - 4y = 3

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

11x      = 11

x = 1

5 - 4y = 3

-4y = -2

y = 1/2

Step-by-step explanation:

7 0
4 years ago
Can someone please explain how to solve this.<br><br> p^-4 x -5p
solong [7]
P^-4 x -5p

In properties of exponents, if the exponent is negative then you move the variable with the negative exponent to the denominators place and it changes to positive and the numerator becomes 1.

p^-4=1/(p^4)

Also, if no exponent is present it is understood to be 1.

Keeping this in mind,
p^-4 x -5p
1/(p^4) x -5p^1            substituted p^-4 by 1/p^4 and added ^1 to -5p
-5p^1/p^4                     multiplied-5p^1 to 1 
-5/p^3                          simplified 
6 0
3 years ago
A manufacturer makes ball bearings out of molten steel. It takes 5.24 cubic centimeters of molten steel to make ball bearings th
dlinn [17]
10 ball bearings is the correct answer, i hope it works

6 0
3 years ago
3(x+1)+11 = -2(x+13)<br> Thank you for the help
iVinArrow [24]

Answer:

x = -8

Step-by-step explanation:

3(x+1)+11=-2(x+13)

3x+3+11=-2x-26

3x+14=-2x-26

5x=-40

x=-8

7 0
3 years ago
Read 2 more answers
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