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
Lapatulllka [165]
3 years ago
9

Arianna went to the store to buy some chicken. The prince per pound of the chicken is $5.75 per pound and she has a coupon for $

3 off the final amount. With the coupon how much would arianna have to pay to buy 4 pounds of chicken
Mathematics
2 answers:
gregori [183]3 years ago
6 0

Answer:

$20

Step-by-step explanation:

If you buy 4 pounds of chicken, you multiply 5.75 times 4. That gives you $23. You have a coupon for $3 off the final amount. $23-$3 = $20.

Ray Of Light [21]3 years ago
5 0

Answer:

20

Step-by-step explanation:

(5.75x4)-3

23-3

20

You might be interested in
GreenBeam Ltd. claims that its compact fluorescent bulbs average no more than 3.50 mg of mercury. A sample of 25 bulbs shows a m
Harrizon [31]

Answer:

(a) Null Hypothesis, H_0 : \mu \leq 3.50 mg  

     Alternate Hypothesis, H_A : \mu > 3.50 mg

(b) The value of z test statistics is 2.50.

(c) We conclude that the average mg of mercury in compact fluorescent bulbs is more than 3.50 mg.

(d) The p-value is 0.0062.

Step-by-step explanation:

We are given that Green Beam Ltd. claims that its compact fluorescent bulbs average no more than 3.50 mg of mercury. A sample of 25 bulbs shows a mean of 3.59 mg of mercury. Assuming a known standard deviation of 0.18 mg.

<u><em /></u>

<u><em>Let </em></u>\mu<u><em> = average mg of mercury in compact fluorescent bulbs.</em></u>

So, Null Hypothesis, H_0 : \mu \leq 3.50 mg     {means that the average mg of mercury in compact fluorescent bulbs is no more than 3.50 mg}

Alternate Hypothesis, H_A : \mu > 3.50 mg     {means that the average mg of mercury in compact fluorescent bulbs is more than 3.50 mg}

The test statistics that would be used here <u>One-sample z test</u> <u>statistics</u> as we know about the population standard deviation;

                          T.S. =  \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \bar X = sample mean mg of mercury = 3.59

            \sigma = population standard deviation = 0.18 mg

            n = sample of bulbs = 25

So, <em><u>test statistics</u></em>  =  \frac{3.59-3.50}{\frac{0.18}{\sqrt{25} } }

                               =  2.50

The value of z test statistics is 2.50.

<u>Now, P-value of the test statistics is given by;</u>

         P-value = P(Z > 2.50) = 1 - P(Z \leq 2.50)

                                             = 1 - 0.9938 = 0.0062

<em />

<em>Now, at 0.01 significance level the z table gives critical value of 2.3263 for right-tailed test. Since our test statistics is more than the critical values of z, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which </em><em><u>we reject our null hypothesis</u></em><em>.</em>

Therefore, we conclude that the average mg of mercury in compact fluorescent bulbs is more than 3.50 mg.

6 0
3 years ago
What is 5% of 80? Round to the nearest hundredth.
AysviL [449]

Answer:

4

Step-by-step explanation:

.05x80=4

7 0
3 years ago
Read 2 more answers
ANWSER these three questions show ur work, if u can is somewhat optional
Airida [17]

Answer:

1. 35            2. 565.5         3. 12.28

Step-by-step explanation:

1. Triangle 1 & 2: 7x3=21    

You do not have to divide by 2 is since there are two triangles.

 Semi-circle: 14.13

2. Trinagle: 29x19/2 = 275.5

Rectangle: 29x10 = 290

3. Triangle: 3x4/2 = 6

Semi-circle: 3.14x4/2 = 6.28

<em>Took a long time- Please give Brainliest and points!</em>

7 0
3 years ago
A recipe from Sally’s "Chocoholic’s Cookbook" requires 70\frac{1}{6} grams of chocolate for each chocolate fudge cake. How many
erik [133]

Answer:

842 grams

Step-by-step explanation:

70\frac{1}{6} =\frac{421}{6}

\frac{421}{6} *12\\\\842

One cake consists of 421/6 grams of chocolate.

Since Sally wants to give 1 cake to 12 friends, we multiply 421/6 and 12.

To make 12 cakes, she needs 842 grams of chocolate.

3 0
3 years ago
Fins the value of (15)^3 + (-9)^3 + (-6)^3 , without actually cubing the numbers​
Hatshy [7]

a³ + b³ + c³ + 3abc = ( a + b + c)(a² + b² + c² + ab + bc + ca)

if a + b + c = 0. then a³ + b³ + c³ = 3abc

here a + b + c = 15 + (-9) + (-6)

a + b + c = 15 - 15

a + b + c = 0

so a³ + b³ + c³ = 3abc

15³ + (-9)³ + (-6)³ = 3(15)(-9)(-6)

= 2430

so the answer is 2430

8 0
3 years ago
Other questions:
  • What is the point on the graph of the function f(x) = 2(x - 2)2 + 3 at x = 27<br> ??
    10·1 answer
  • What is the approximate base area of the resulting figure?<br> Area of a circle: A = πr2
    6·2 answers
  • The following table shows the number of medals won in the 2008 Olympics for swimming by the top five countries. Country Number o
    10·1 answer
  • There I Need help with it c:
    6·2 answers
  • What is 62 1/2% as a decimal?
    13·1 answer
  • Andrea started a workout program at a local health club. she began with a 25 minute workout and has increased her time by 5 minu
    13·2 answers
  • Which of these lengths could be the sides of a triangle?
    10·1 answer
  • Which expression have the same value as the product of 2.7 and 4
    15·1 answer
  • Simplify pls<br><br> 8(4x-12)
    14·1 answer
  • Unit 1 Lesson 2 - Exit Ticket - Geometry
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!