Oliver earns $4 a day for 7 days for doing chores. Each day, his mom takes $2 and put it into a savings account for Oliver. How much money does Oliver get to keep after 7 days?

Answer:

The distribution is approximately normal with mean = 2.8 and standard error = 0.4

Step-by-step explanation:

We are given;

Mean; μ = 2.8

Standard deviation; σ = 4

Sample size; n = 100

Now, the central limit theorem states that the sample mean with a sample size(n) from a population mean (μ) and population standard deviation(σ) will, for large value of n, have an approximately normal distribution with mean μ and standard error as (σ/√n)

The sample size is 100 and thus it's very large because it's bigger than minimum of 30 for approximate distribution.

Thus, SE = (σ/√n) = 4/√100 = 4/10 = 0.4

Thus,from the central limit theorem I described, we can say that the distribution is approximately normal with mean = 2.8 and standard error = 0.4

Answer:

[tex]y=-6x-17[/tex] (B)

Step-by-step explanation:

[tex]y=mx+b\\m=\frac{y_{2}-y_{1} }{x_{2} -x_{1} } = \frac{1--5}{-3--2} = \frac{6}{-1} = -6\\y=-6x+b\\[/tex]

Plug in one of the two points for X and Y

(-3,1)

[tex]1=-6(-3)+b\\1=18+b\\b=-17\\\\y=-6x-17[/tex]

Answer:

C

Step-by-step explanation:

2x+3x Have the same variable. Therefore they both have like terms

Answer:

Step-by-step explanation:

I’m not sure but I need points

Answer:

54

Step-by-step explanation:

divide

Answer:

4178

Step-by-step explanation:

Answer:

4178

Step-by-step explanation:

THANK YOU SO MUCH I NEEDED POINTS Brainliest please!!!!

Answer:

C. y = 2/3x + 6

Step-by-step explanation:2/3 is the slope and 6 is the y intercept.

Answer:4.48

Step-by-step explanation:

Cuz I sed so. (70% chance of being wrong, so just use 4.48099829836)

Answer:

y = 6

Step-by-step explanation:

2(y - 3) = y

2y - 6 = y

y = 6

Hope that works out :)

Answer:

im 90% sure its alternate exterior

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

Let the cost of 1 hot dog be $x.

2x ≥ 25 + 0.75x

2x - 0.75x ≥ 25

1.25x ≥ 25

x ≥ 20

Answer:

A

Step-by-step explanation:

Step-by-step explanation:

1-800-273-8255 my dude

Answer:

I think you should tell someone you trust that you got bullied. I'm so sorry, I know people that got bullied. We'll fight this together.

Answer:

Step-by-step explanation:

❗️URGENT NEED ASAP❗️

Given functions,

f(x) = -5x – 14 g(x) = -02 + 9x - 1

find f(9) + g(-2)

Answer:

Functions! Nice.

Step-by-step explanation:

This is a pretty simple concept.

What it wants you to do is to input those values inside the parentheses(9 or -2) into those equations for x. Then, you will have to add those values that you get.

If you didn't understand, watch and learn!

[tex]for x=9\\f(9)=-5(9)-14\\f(9)=-59\\[/tex]

Now try to do that for the second equation, but this time, have x as -2.

(I also can't solve the last one because I can't make sense of the equation. What is 02?)

Stay Safe!

P.S. When you find the answer to that second one, just add it to the first answer, and you'll get the final answer.

Answer:

7,000,000,000

Step-by-step explanation:

7×10^9

The number after ten is how many zeros you put.

Answer: 7000000000

Step-by-step explanation: 7x

1000000000

Answer:

8 $5 bills and 5 $1 bills

Step-by-step explanation:

5x8=40, which would be $40

1x5=5, which would be $5

$40+$5=$45

hope this helps! :)

Answer:

it's not possible. I've tried every way, r these the right amounts?

Answer: 3ft²?

Step-by-step explanation:

Answer:

16 pints

Step-by-step explanation:

Answer:

Step-by-step explanation:

1:2

1 q to 2 p

8q to 16 p or 8:16

Answer:

7.6158

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

The slope of a given segment is the ratio rise/run. The "rise" is the number of vertical divisions between the points. The "run" is the number of horizontal divisions between the points. The "run" is positive left-to-right. The corresponding "rise" is positive up.

Here are the segment slopes (rise/run).

  AB = -3/1 = -3

  BC = 2/3

  AC = -1/4

Answer:

the answer is 5

Step-by-step explanation:

Answer:

Step-by-step explanation:

x^3+x^2-17x+15  replace x with 3

3^3+3^2-17(3)+15 =0

27+9-51+15  combine

=0

Answer:

IT'S A. HEHEHEHEHEHEHE

Answer:

15 weeks

Step-by-step explanation:

15 times 20 = 300

300+60=360

15 Weeks

Step-by-step explanation:

You earn 20 every week, multiply that by 15 and you get 300. You already have 60 So add 300+60 and you get 360, so 15 weeks

Given :

On the first day of ticket sales the school sold 10 senior tickets and 1 child ticket for a total of $85 .

The school took in $75 on the second day by selling 5 senior citizens tickets and 7 child tickets.

To Find :

The price of a senior ticket and the price of a child ticket.

Solution :

Let, price of senior ticket and child ticket is x and y respectively.

Mathematical equation of condition 1 :

10x + y = 85    ...1)

Mathematical equation of condition 2 :

5x + 7y = 75    ...2)

Solving equation 1 and 2, we get :

2(2) - (1)   :

2( 5x + 7y - 75 ) - ( 10x +y - 85 ) = 0

10x + 14y - 150 - 10x - y + 85 = 0

13y = 65

y = 5

10x - 5 = 85

x = 8

Therefore, price of a senior ticket and the price of a child ticket $8 and $5.

Hence, this is the required solution.

Answer:

Y = 7

Step-by-step explanation:

You would add 4 to both sides to cancel out the -4. That leaves y by itself equaling 7.

The solution of the equation y – 4 = 3 will be 7.

The solution of the equation means the value of the unknown or variable.

The equation is given below.

y – 4 = 3

Add 4 on both sides, we have

y – 4 + 4 = 3 + 4

            y = 7

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

Answer:

Step-by-step explanation:

[tex]a_1=-8\\a_2=-2\\a_3=4\\\\d=a_2-a_1=a_3-a_2=...=a_n-a_{n-1}\qquad\qquad \{n\ge2\}\\\\\left{\big{a_2-a_1=-2-(-8)=-2+8=6}\atop\big{a_3-a_2=4-(-2)=4+2=6\quad\ \,}\right\}\implies\ \ d=6[/tex]