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2 years ago

Is x=4 a solution to the equation 9x = 32 + x?

Mathematics

2 answers:

madam [21]2 years ago

8 0

Answer:

yes

Step-by-step explanation:

because 9*4=36 and well it's 36=32*? so 36-32 is 4

So well the solution is x=4

Sauron [17]2 years ago

5 0

Answer:

Yes, it is.

Explanation:

For x = 4 to be a solution of the given eqⁿ, it must satisfy it. That is,

9x = 32 + x => 8x - 32 = 0

=> f(x) = 8x - 32

At x = 4,

f(4) = 8(4) - 32 = 32 - 32 = 0

Since, f(4) = 0, thus, x = 4 is a solution to the given eqⁿ.

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The length of a parallelogram exceeds its breadth by 30 cm. If the perimeter of the parallelogram is 2 m 60 cm, find the length

Nuetrik [128]

$\huge\underline{\underline{\boxed{\mathbb {SOLUTION:}}}}$

$\longrightarrow \sf{2(1 + b) = 260}$

$\longrightarrow \sf{2(x+30+x) = 260}$

$\longrightarrow \sf{ 2x+30 = \dfrac{260}{20} }$

$\longrightarrow \sf{2x + 30 =130}$

$\longrightarrow \sf{2x = 130 - 30}$

$\longrightarrow \sf{2x = 100}$

$\longrightarrow \sf{x= \dfrac{100}{2} }$

• $\longrightarrow \sf{b= \underline{50cm}}$

$\longrightarrow \sf{= x + 30}$

$\longrightarrow \sf{= 50 + 30}$

• $\longrightarrow \sf{ \underline{80cm}}$

$\huge\underline{\underline{\boxed{\mathbb {ANSWER:}}}}$

$\large\bm{Breadth= \: 50cm}$

$\large\bm{Length= \: 80cm}$

3 0

1 year ago

What is equivalent to 1+1 because i do not know

MissTica

2 is the answer to this equation

7 0

3 years ago

PLEASE HELP ME! :(

snow_lady [41]

Here, I'll do the first one for you.
When they are talking about a number, use "x".
Since it says twice a number, you say 2x. Or 3x for three times the number
2x+12=3x-31
Then use algebra to find x. Get the numbers on one side and all the x's on the other.
2x+12+31=3x-31+31
2x+43-2x=3x-2x
x=43

Now do the rest on your own!

5 0

3 years ago

A movie rental company charges a yearly membership fee of $18.Each movie rental is $1.50.Which equation could be used to find th

Pavlova-9 [17]

Answer:

18+1.50m

Step-by-step explanation:

7 0

3 years ago

What is the slope of the line? 2x - 5y = 9 Choose 1 answers 5 2 O

Zepler [3.9K]

9514 1404 393

Answer:

D. 2/5

Step-by-step explanation:

The slope is the x-coefficient when the equation is solved for y.

2x -5y = 9 . . . . . . . given

-5y = -2x +9 . . . . . .subtract 2x

y = (-2/-5)x +9/(-5) . . . . divide by -5

y = 2/5x -9/5

The coefficient of x is 2/5. That is the slope of the line.

The slope is 2/5.

5 0

3 years ago