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2 years ago

Y divided by 9 equals 81

Mathematics

2 answers:

algol [13]2 years ago

5 0

If you do 81 x 9 which equals 729. If you want to check, you do 729 divided by 9 and you get 81.

Luba_88 [7]2 years ago

5 0

Answer:

729

Step-by-step explanation:

In order to solve this, you need to do the reverse operation. The question is about division, so that means we are going to do multiplication. If we multiply 9x81, we will know what divided by 9 equals 81.

9x81=729

So 729 divided by 9 equals 81.

To check this just plug the number you got back into the orignal equation:

Y divided by 9 equals 81

729 divided by 9 equals 81

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An Olympic sized swimming pool is filled with 660,253 gallons of water. One third of it is left every hour. How much water will

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Answer:

None

Step-by-step explanation:

If 1/3 is left every hour then it would then after 3 hours wouldn't it be gone? Most would assume if only a third of the water is left every hour then after three hours there would be either of two answers if the question was written correctly: one third because they refilled it on the 2nd hour or none because it wouldn't even last two hours

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2 years ago

Simplify completely quantity x squared plus 4 x minus 45 all over x squared plus 10 x plus 9 and find the restrictions on the va

dem82 [27]

(x² + 4x - 45)/(x² + 10x + 9)

Numerator = N = x² + 4x - 45 
= x² + 9x - 5x - 45
= (x² + 9x) - (5x + 45)
= x(x + 9) - 5(x + 9)
= (x + 9)(x - 5)

Denominator = D = x² + 10x + 9 
= x² + x + 9x + 9
= (x² + x) + (9x + 9)
= x(x + 1) + 9(x + 1)
= (x + 1)(x + 9)

Hence, the given expr. = N/D 
= {(x + 9)(x - 5)}/{(x + 1)(x + 9)
= (x - 5)/(x + 1)

Restrictions : x ≠ - 1, x = 5 

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

7 0

3 years ago

Read 2 more answers

Se van a transportar sacos que contienen 50 kg de azúcar cada uno, el camión que se va utilizar para el transporte de los sacos

LekaFEV [45]

Function: $50x=8000$ (maximum number of packages: 160)

Step-by-step explanation:

In this problem, we have:

$C=8 ton = 8000 kg$ is the capacity of the truck (the amount of mass that can be stored in the truck)

p = 50 kg is the mass of each package that need to be stored in the truck

We can find the number of packages that can be transported as follows: calling this number x, the total mass of x packages is

$p\cdot x$

This amount should be at most equal to the capacity of the truck, therefore:

$px=c$

And substituting the numbers,

$50x=8000$

And solving the equation, we can found the number of packages that can fit into the truck:

$x=\frac{8000}{50}=160$

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brainly.com/question/11306893

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#LearnwithBrainly

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2 years ago

Which is an equation of the line that passes

yan [13]

Answer:

y=1/2x+6

Step-by-step explanation:

Lines that are parallel will have the same slope, so the slope will remain 1/2. However, the y-intercepts can't be the same because then they will overlap each other instead. So we must solve for the missing y-intercept in this case:

y = 1/2x + b

4 = 1/2(-4) + b

4 = -2 + b

6 = b

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Since the y-intercept is b=6, then the equation of the line that passes through the point (-4,4) and is parallel to the line y=1/2x-4 is y=1/2x+6

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2 years ago

If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the objec

SVETLANKA909090 [29]

Answer

Find out the what is the acceleration of the object .

To prove

Formula

$Acceleration = \frac{Final\ velocity - Intial\ velocity}{Time }$

Where

t = the time in which the change occurs

As given

If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s .

Final velocity = 98 m/s

Intial velocity = 65 m/s

Time = 12 s

Put in the formula

$Acceleration = \frac{98 - 65}{12}$

$Acceleration = \frac{33}{12}$

Acceleration = 2 .75 m/s ²

Option (A) is correct .

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