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
poizon [28]
3 years ago
15

A calculator may be used for this question. The energy saving from recycling one glass bottle will power the oven Adam uses to c

ook the turkey for 7.5 minutes. Glass used for recycling costs 5p per kg. A glass bottle weighs 500 grams. How much would the recycled glass cost to power the oven for 6 hours?
Mathematics
1 answer:
evablogger [386]3 years ago
5 0
The one above is right.
You might be interested in
The total weight of 9 bags of potatoes is 36 kilograms. Each bag weighs the same amount. What is the weight, in grams, of each b
Sunny_sXe [5.5K]

Answer:

4000 grams

Step-by-step explanation:

8 0
3 years ago
Grayson can read 18 pages of a book in 30 minutes. At that rate, how long would it take Grayson to read 150 pages? Express your
ratelena [41]

Answer:

4 hours and 10 min

Step-by-step explanation:

For this equation we will do ratios:

\frac{18}{30} =\frac{150}{x} \\\\18x=4500\\x=250

250 min =

4 hours and 10 min

4(60) = 240

240 + 10 = 250 minutes

6 0
3 years ago
Complete parts ​(a) through ​(c) below. ​(a) Determine the critical​ value(s) for a​ right-tailed test of a population mean at t
olga_2 [115]

Answer:

a) The critical value on this case would be t_{crit}=1.325

b) The critical value on this case would be t_{crit}=-1.345

c) The critical values on this case would be t_{crit}=\pm 2.201

Step-by-step explanation:

Part a

The system of hypothesis on this case would be:

Null hypothesis: \mu \leq \mu_0

Alternative hypothesis: \mu > \mu_0

Where \mu_0 is the value that we want to test.

In order to find the critical value we need to find first the degrees of freedom, on this case that is given df=20. Since its an upper tailed test we need to find a value a such that:

P(t_{20}>a) = 0.1

And we can use excel in order to find this value with this function: "=T.INV(0.9,20)". The 0.9 is because we have 0.9 of the area on the left tail and 0.1 on the right.

The critical value on this case would be t_{crit}=1.325

Part b

The system of hypothesis on this case would be:

Null hypothesis: \mu \geq \mu_0

Alternative hypothesis: \mu < \mu_0

Where \mu_0 is the value that we want to test.

In order to find the critical value we need to find first the degrees of freedom, given by:

df=n-1=15-1=14

Since its an lower tailed test we need to find b value a such that:

P(t_{14}

And we can use excel in order to find this value with this function: "=T.INV(0.1,14)". The 0.1 is because we have 0.1 of the area accumulated on the left of the distribution.

The critical value on this case would be t_{crit}=-1.345

Part c

The system of hypothesis on this case would be:

Null hypothesis: \mu = \mu_0

Alternative hypothesis: \mu \neq \mu_0

Where \mu_0 is the value that we want to test.

In order to find the critical value we need to find first the degrees of freedom, given by:

df=n-1=12-1=11

Since its a two tailed test we need to find c value a such that:

P(t_{11}>c) = 0.025 or P(t_{11}

And we can use excel in order to find this value with this function: "=T.INV(0.025,11)". The 0.025 is because we have 0.025 of the area on each tail.

The critical values on this case would be t_{crit}=\pm 2.201

5 0
3 years ago
Which expression is a factor of 21x2 + 13x – 20?​
Vladimir [108]

Answer:

B. 7x - 5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Consider this bag of marbles.
Olegator [25]

Answer:

  • p(green) = 0.5
  • odds in favor of green: 1 : 1

Step-by-step explanation:

There are 5 green marbles among the 10 in the bag, so the probability of drawing one at random is 5/10 = 0.50.

The odds in favor of drawing a green marble will be the ratio of the number of green marbles to the number that are not green: 5 : 5. Usually, the odds are expressed using integers with no common factors, so they would be written as 1 : 1.

4 0
3 years ago
Other questions:
  • Which problem can be solved using the equation shown? 2.50x-2.00=10.50
    15·2 answers
  • Luci cuts a board that is 3/8 yard long into pieces that are 3/16 yard long. How many pieces does she cut?
    12·1 answer
  • The what of a figure is a measurement of the space inside it
    8·1 answer
  • In rhombus ABCD, DB=16 and AC=12. What is the perimeter of rhombus ABCD?
    9·1 answer
  • Which expression is equivalent to x4 • x−2?
    7·1 answer
  • Jorge bought 16 apples for $8.00.
    11·1 answer
  • In order for the data in the table to represent a linear function with a rate of change of –8, what must be the value of m? m =
    15·2 answers
  • PLEASE HELP ME<br> QUICK PLEEEEAAASE
    13·2 answers
  • PLS help guys dont do it for the points and you have to find the sum
    15·2 answers
  • Which of these expressions are equivalent to 7 1/2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!