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3 years ago

What is the solution to the equation x+7/2=5x/3

2 answers:

7 0

Your answer is x=21/4

first you subtract 7/2 from both sides to isolate x
then you simplify

hope this helps:)
brainliest?

REY [17]3 years ago

5 0

Answer:

x= 21 /4

Step-by-step explanation:

x+7/2=5x/3

First Simplify both sides of the equation.

x+ 7 /2 = 5 /3 x

Then Subtract 5/3x from both sides.

−2 /3 x+ 7 /2 =0

Then Subtract 7/2 from both sides.

−2 /3 x= −7 /2

Lastly Multiply both sides by 3/(-2).

x= 21 /4

Hope This Helps

Happy New year!!

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How many hours are in 17 years? Write your answer in scientific notations with 3 sig figs.

taurus [48]

Answer:

1.49 x $10^{5}$ hours

Step-by-step explanation:

1 day=24hours

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17 years

= 8760hours x 17

=148920hours

=1.4892 x $10^{5}$

= 1.49 x $10^{5}$ hours

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3 years ago

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What is the radius and center of the circle given by the equation (x-5)^{2}+(y+2)^{2} = 81/4

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Step-by-step explanation:

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3 years ago

A survey of 80 students found that 24 students both play in the band and play a sport. But 22 students are not in band and do no

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yes

Step-by-step explanation:

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She asked me where I was from

I said "Somewhere you never been to"

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Hidden by some dogwood trees

She tried talkin' with my accent

We held hands and waded into

That blue water

She left her flip-flops by my Red Wings on the beach

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Yeah but, now I'm dodging potholes in my sunburnt Silverado

Like a heart-broke Desperado, headin' right back to my roots

Somethin' 'bout the way she kissed mе tells me she'd lovе Eastern Tennessee

Yeah, but all I brought back with me was some sand in my boots

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I said "Let's go shoot tequila"

So we walked back to that beach bar

She said "Don't cowboys drink whiskey?" (huh)

So we drank bottom shelf

She said ", that sky looks perfect"

I said "Girl, you've never seen stars like the ones back home"

And she said "Maybe I should, see 'em for myself"

[Chorus]

Yeah, but now I'm dodging potholes in my sunburnt Silverado

Like a heart-broke Desperado, headin' right back to my roots

Somethin' 'bout the way she kissed me tells me she'd love Eastern Tennessee

Yeah, but all I brought back with me was some sand in my boots

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I said meet me in the mornin'

And she told me I was crazy

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Step-by-step explanation:

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2 years ago

A game is played with a spinner on a circle, like the minute hand on a clock. The circle is marked evenly from 0 to 100, so, for

zheka24 [161]

Answer:

The probability is 1/2

Step-by-step explanation:

The time a person is given corresponds to a uniform distribution with values between 0 and 100. The mean of this distribution is 0+100/2 = 50 and the variance is (100-0)²/12 = 833.3.

When we take 100 players we are taking 100 independent samples from this same random variable. The mean sample, lets call it X, has equal mean but the variance is equal to the variance divided by the length of the sample, hence it is 833.3/100 = 8.333.

As a consecuence of the Central Limit Theorem, the mean sample (taken from independant identically distributed random variables) has distribution Normal with parameters μ = 50, σ= 8.333. We take the standarization of X, calling it W, whose distribution is Normal Standard, in other words

$W = \frac{X - \mu}{\sigma} = \frac{X - 50}{8.333} \simeq N(0,1)$

The values of the cummulative distribution of the Standard Normal distribution, lets denote it $\phi$ , are tabulated and they can be found in the attached file, We want to know when X is above 50, we can solve that by using the standarization

$P(X > 50) = P(\frac{X-50}{8.33} > \frac{50-50}{8.33}) = P(W > 0) = \phi(0) = 1/2$

Download pdf

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3 years ago