1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexira [117]
3 years ago
11

Bonnie withdrew $1,200 from her savings account. She spent of the money on travel arrangements. She spent of the remaining amoun

t at the hardware store. Finally, she treated her friend to lunch with some of the remaining money. After lunch, Bonnie had $300.50 left. How much money did Bonnie spend on lunch?
Bonnie spent $
on lunch.
Mathematics
2 answers:
goldenfox [79]3 years ago
5 0
The answer should be 899.5
andrey2020 [161]3 years ago
3 0

Answer:

899.5

Step-by-step explanation:

You might be interested in
A student wants to use the property
Ratling [72]

Answer:

hyoyr nhggggfryuvsrthjugdhba jgrybcwqetjkoplhsaxvnnutfvhyu

6 0
3 years ago
Construct a​ 99% confidence interval for the population​ mean, mu. Assume the population has a normal distribution. A group of 1
Zarrin [17]

Answer:

99% confidence interval for the population​ mean is [19.891 , 24.909].

Step-by-step explanation:

We are given that a group of 19 randomly selected students has a mean age of 22.4 years with a standard deviation of 3.8 years.

Assuming the population has a normal distribution.

Firstly, the pivotal quantity for 99% confidence interval for the population​ mean is given by;

         P.Q. = \frac{\bar X - \mu}{\frac{s}{\sqrt{n} } } ~ t_n_-_1

where, \bar X = sample mean age of selected students = 22.4 years

             s = sample standard deviation = 3.8 years

             n = sample of students = 19

             \mu = population mean

<em>Here for constructing 99% confidence interval we have used t statistics because we don't know about population standard deviation.</em>

So, 99% confidence interval for the population​ mean, \mu is ;

P(-2.878 < t_1_8 < 2.878) = 0.99  {As the critical value of t at 18 degree of

                                                freedom are -2.878 & 2.878 with P = 0.5%}

P(-2.878 < \frac{\bar X - \mu}{\frac{s}{\sqrt{n} } } < 2.878) = 0.99

P( -2.878 \times {\frac{s}{\sqrt{n} } } < {\bar X - \mu} < 2.878 \times {\frac{s}{\sqrt{n} } } ) = 0.99

P( \bar X -2.878 \times {\frac{s}{\sqrt{n} } < \mu < \bar X +2.878 \times {\frac{s}{\sqrt{n} } ) = 0.99

<u>99% confidence interval for</u> \mu = [ \bar X -2.878 \times {\frac{s}{\sqrt{n} } , \bar X +2.878 \times {\frac{s}{\sqrt{n} } ]

                                                 = [ 22.4 -2.878 \times {\frac{3.8}{\sqrt{19} } , 22.4 +2.878 \times {\frac{3.8}{\sqrt{19} } ]

                                                 = [19.891 , 24.909]

Therefore, 99% confidence interval for the population​ mean is [19.891 , 24.909].

6 0
3 years ago
What is the completely factored form of f(x) = 6x<br>x2 - 4x + 15?​
maria [59]

Answer:

(x+1)(2x-3)(3x-5)

Step-by-step explanation:

5 0
3 years ago
What equation do you get when you solve z-m=z+bx for x?
Nimfa-mama [501]
X = -m/b.
Subtract z from both side and you get
-m= bx
Now divide both side by b and you get
-m/b= x
8 0
3 years ago
Read 2 more answers
An angle measures 44° less than the measure of its complementary angle. What is the measure of each angle?
ryzh [129]

a+b=90°

a=b+44°

b+44°+b=90°

2b+44°=90°

2b=90°-44°

2b=46°

b=23°

a=23°+44°

a=67°

8 0
2 years ago
Other questions:
  • Find the circumference of a circle inscribed in an equilateral triangle with a side of 9 inches.
    13·1 answer
  • (27 thousands 3 hundreds 5 ones) x 10= How many thousands are in your answer
    5·2 answers
  • The minimum value of a function is the smallest y-value of the function. A. True B. False
    8·1 answer
  • After purchasing a cell phone online, Mary attempts to sell the phone for $325. If this was a markup of 24%, how much did Mary o
    11·2 answers
  • HELP ME SOLVE THIS DUE TOMORROW!!
    7·1 answer
  • PLZ HELP ASAP USE SIMMILAR AND CONGRUENT TRIANGLES
    9·1 answer
  • The number of daily sales of a product was found to be given by S = 600xe−x2 + 600 x days after the start of an advertising camp
    15·1 answer
  • A set of biology exam scores are normally distributed with a mean of 70 points and a standard deviation of 6
    9·2 answers
  • In a time of t seconds, a particle moves a distance of s meters from its starting point, where s = 6t^2 + 4.
    5·1 answer
  • What is the y-intercept of a line that has a Slope of 3 and passes through point (-1, -7)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!