Pls help i dont know this one

Answer:

x = 56/5, x = 13

Step-by-step explanation:

Solve each problem separately:

5x+4=60

5x=56

x = 56/5

3x+6=45

3x=39

x=13

Answer and explanation:

The numerical expression 3(945−120)+312 describes the series of events that led to the number of followers on Zuberi's fitness blog

From the expression, Zuberi's followers were tripled after a loss of 120 followers from an initial 945 followers. He then had added followers of 312. Therefore Zuberi's current number of followers is 2787.

Answer:

The answer is 70%           HOPED THIS HELPED !!

Step-by-step explanation:

You turn 14/20 to a decimal which is 0.7 then multiply 0.7 by 100 which equals  70%.

Answer: 32

Step-by-step explanation:add 14 to 18

Answer:

32

Step-by-step explanation:

32 is the answer because 18 plus 14 equals 32. And so the number 32 decreased by 14 is 18.

Answer:

Thats an octagon

Step-by-step explanation:

It has 8 sides

Answer:

x=10

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

crown if this helps

Answer:

i would not rlly know what my growth factor is actually

Step-by-step explanation:

Answer:

If the question has

What are the mean and standard deviation of the sampling distribution of the difference in sample means x¯F−x¯M ?

It is E

Step-by-step explanation:

AP classroom uses the example with different end questions.

The mean and standard deviation of the sampling distribution of the difference in sample means xF − xM is 1.5 minutes(mean) and 1.533 minutes(std. dev) approx The probability of getting a difference in sample means xF − xM that is less than 0 is 0.0239 approx.

Suppose that a random variable X is formed by n mutually independent and normally distributed random variables such that:

[tex]X_i = N(\mu_i , \sigma^2_i) ; \: i = 1,2, \cdots, n[/tex]

And if

[tex]X = X_1 + X_2 + \cdots + X_n[/tex]

Then, its distribution is given as:

[tex]X \sim N(\mu_1 + \mu_2 + \cdots + \mu_n, \: \: \sigma^2_1 + \sigma^2_2 + \cdots + \sigma^2_n)[/tex]

For this case, it is given that:

Estimated sample mean  = population mean

Estimated sample standard deviation = population std. dev / √n

where n = sample size

Thus, we get:

For sample of females, the distribution is [tex]X_F \sim N(\overline{x}_F = 8.8, s_F = 3.3/\sqrt{8})[/tex]
For sample of males, the distribution is [tex]X_M \sim N(\overline{x}_M =7.3, s_M = 2.9/\sqrt{8})[/tex]

Also, if we take distribution of difference between sample means([tex]X_F - X_M = X_F + (-X_M)[/tex], then it would be normal with mean = 8.8-7.3 = 1.5 minutes (as mean for [tex]-X_F[/tex] will be -7.3 but same standard deviation) as factor gets squared for affecting standard deviation and variance)

and standard deviation is: [tex]s = \sqrt{s_F^2 + s_M^2} = \sqrt{3.3^2/8 + 2.9^2/8} \approx 1.553 \: \rm minutes[/tex]

The distribution of difference between sample means is [tex]X_F - X_M \sim N(\overline{x} = 1.5, s = 1.533)[/tex] approximately

We need [tex]P(X_F - X_M < 0)[/tex]

Converting this distribution to standard normal distribution, we get:

[tex]P(X_F - X_M < 0) = P(Z < \dfrac{0 - \overline{x}}{s} \approx -1.98)[/tex]

From the z-tables, we get the p value for Z = -1.98 as 0.0239

Thus, we get:

[tex]P(X_F - X_M < 0) = P(Z < \dfrac{0 - \overline{x}}{s} \approx -1.98) \approx 0.0239[/tex]

Thus, the mean and standard deviation of the sampling distribution of the difference in sample means xF − xM is 1.5 minutes(mean) and 1.533 minutes(std. dev) approx The probability of getting a difference in sample means xF − xM that is less than 0 is 0.0239 approx.

Learn more about standard normal distribution here:

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Answer:

70 miles

Step-by-step explanation:

15 + 35 + (35 - 15) = 15 + 35 + 20 = 70

Answer:

130°

Step-by-step explanation:

∠JDG and ∠EDF are opposite angles. The measures of arcs for opposite angles always add up to 180°. Since the arc for ∠JDG is 50°, the arc for ∠EDF has to be 130°, because 50 + 130 = 180.

Answer:

Radius-16

Diameter-32

Step-by-step explanation:

I think

Answer:

The northern position would be positive while the southern position would be negative.

Step-by-step explanation:

Imagine 0 as the truck stop. North would be above the truck stop, while south would be below it.

On a number line, anything above 0 is a positive number. Anything below 0 is a negative number.

Therefore, the northern position would be positive while the southern position would be negative.

Answer:

x=3.33333333

Step-by-step explanation:

Answer:

x = 10/3

Step-by-step explanation:

Divide the coefficient of x (3) on both sides, 3x/3 = 10/3 - then divide the three and the three to get 1 (which stays as x) and then divide ten by three or just leave it as an improper fraction (this all depends on what your teacher's preference) and then you will get the final answer of x = 10/3 or x = 3.3.

Hope this helps, and if you need additional help regarding this topic feel free to ask me again in the comment section :)

Answer:

$332.50 is the new discounted price

Step-by-step explanation:

30% of 475

30/100 x $475. 00

= $142.50

$475.00-$142.50=$332.50

and thats the answer

Answer:

y = 3x - 8

Step-by-step explanation:

Let me know if I am wrong.

Answer:

y=3x-8

Step-by-step explanation:

Answer:

11 years approx

Step-by-step explanation:

Given data

P=$1000

A=2000

R=6.5%

T= ?

Calculate time, solve for t

t = ln(A/P) / r

substitute

t=ln(2000/1000)/0.065

t=ln(2)/0.065

t=0.693/0.065

t=10.66

Hence the time is 11 years approx

Answer:

x = 2

Step-by-step explanation:

[tex]4(2x-5)+15 = 11 => 4(2x-5) = 11 - 15 => 4(2x-5) = -4 => 2x-5 = \frac{-4}{4} => 2x-5 = -1 => 2x = -1 + 5 => 2x = 4 => x = 2[/tex]

The value of x is 2 for equation 4(2x - 5) + 15 = 11

Two or more expressions with an Equal sign is called as Equation.

The given equation is 4(2x - 5) + 15 = 11

Four times of two x minus five plus fifteen equal to eleven

4(2x - 5) + 15 = 11

Apply distributive property on the LHS

8x-20+15=11

8x-5=11

Add 5 on both sides

8x=16

Divide both sides by 8

x=2

Hence, the value of x is 2 for equation 4(2x - 5) + 15 = 11

To learn more on Equation:

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Answer:

[tex]\large\boxed{b = -0.5}[/tex]

Step-by-step explanation:

Hope this helps, have a great day

Answer:

Move all terms not containing  b  to the right side of the equation.

b = − 0.5

Step-by-step explanation:

Answer: The correct answer is 8^2 or 64

Step-by-step explanation: Can I please get the brainliest answer.

Answer:

8²

Step-by-step explanation:

When we divide numbers with exponents that have the same bases, we can just subtract the exponents. So, 8^9/8^7 equals 8^(9-7) = 8^2 (Which equals 64, but it isn't a power).

Answer:

The line on the graph below is my answer.

The graph of function y = -3x – 1 has been drawn below.

A graph is a diagram that shows the fluctuation of one variable in relation to one or more other variables.

In order to plot the graph, we need to find out y's values corresponding to x's value

After that, we need to substitute the values of x's and y's into the coordinate geometry.

Given the line equation  y = -3x – 1

At x = 0 ⇒

y = -3(0) - 1

y = -1

So,

A(0,-1) is the first point on the line.

At y = 0 ⇒

0 = -3x – 1

x = -1/3

So,

B(-1/3,0) is the second point on the line.

Hence "The graph of function y = -3x – 1 has been drawn below".

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Answer:

just take the 96 and 66 and middle it then take y multiply that=answer

Step-by-step explanation:

Answer: 48

Step-by-step explanation: 96/2

Answer:

Step-by-step explanation:

so 30% of the total number of goals shot is 5

30% of what number is 5....turn ur percent to a decimal..." of " is multiply

let the number of shots represent x

0.30x = 5...divide borh sides by 0.30

x = 5/0.30

x = 16.66 shots

Answer:

p=$15000

R=15%

t=5years

compound amount CI=?

Step-by-step explanation:

we have

The total amount of $15,000 at 15% compounded annually for 5 years will be $30,170.36 so option (B) is correct.

Compound interest is applicable when there will be a change in principle amount after the given time period.

The rate at which compound interest accrues depends on the frequency of compounding.

For instance, if you offer someone $500 at a rate of 10% annually, $500 will be considered your principal sum. After a year, the interest will be $50, making the principle amount $550. Moving forward, the interest will be $550 rather than $500.

Given

Principle amount = $15000

Rate of interest = 15%

The time period T = 5 years.

Compound interest formula

A = P  [tex][ 1 + R/100 ]^{T}[/tex]

A = 15000 [tex][ 1 + 15/100 ]^{5}[/tex]

A = $30,170.36 hence, the total amount after 5 year will be $30,170.36.

For more information about compound interest

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Answer:

3.5 meters times 100 is equal to 350 centimeters.

Step-by-step explanation:

Answer:

60 I think 3/5 converted to a decimal would be 0.6 right?

Step-by-step explanation:

Answer: 2.375 per book

Step-by-step explanation:

Answer:

2.375 per book

Step-by-step explanation:

divide 28.50 by 12 to get the unit rate which is 2.375 per book

Step-by-step explanation:

15 minutes = 0.25 hours.

Distance the bus travels

= (0.25h)(45km/h)

= 11.25km.

Answer:

B) The final acceleration will triple between the first and third trial.