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
s2008m [1.1K]
2 years ago
10

Two cans of paint and one roller cost $58. Three cans of the same paint and two rollers cost $92. What is a reasonable price for

the cost of a gallon of paint?
a. $20
b. $21
c. $22
d. $24
Mathematics
1 answer:
Oksi-84 [34.3K]2 years ago
7 0
I would say D because $24 x 2 = 48 wish would make the roller cost $10 wich any more would be unreasonable.
You might be interested in
A chemist examines 15 geological samples for potassium chloride concentration. The mean potassium chloride concentration for the
NikAS [45]

Answer:

0.376-2.145\frac{0.0012}{\sqrt{15}}=0.375    

0.376+2.145\frac{0.0012}{\sqrt{15}}=0.377    

And we are 95% confident that the true mean of chloride concentration is between 0.375 and 0.377 cc/ cubic meter

Step-by-step explanation:

Data provided

\bar X=0.376 represent the sample mean for the chloride concentration

\mu population mean (variable of interest)

s=0.0012 represent the sample standard deviation

n=15 represent the sample size  

Confidence interval

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

Since we need to find the critical value first we need to begin finding the degreed of freedom

df=n-1=15-1=14

The Confidence is 0.95 or 95%, the significance would be \alpha=0.05 and \alpha/2 =0.025, and the critical value for this case with a t distribution with 14 degrees of freedom is t_{\alpha/2}=2.145

And the confidence interval is:

0.376-2.145\frac{0.0012}{\sqrt{15}}=0.375    

0.376+2.145\frac{0.0012}{\sqrt{15}}=0.377    

And we are 95% confident that the true mean of chloride concentration is between 0.375 and 0.377 cc/ cubic meter

7 0
3 years ago
Order the side lengths from least to greatest
Liula [17]

Answer:

BC < CE < BE < ED < BD

Step-by-step explanation:

In the triangle BCE,

m∠BEC + m∠BCE + m∠CBE = 180°

m∠BEC + 81° + 54° = 180°

m∠BEC = 180 -  135

m∠BEC = 45°

Order of the angles from least to greatest,

m∠BEC < m∠CBE > mBCE

Sides opposite to these sides will be in the same ratio,

BC < CE < BE ----------(1)

Now in ΔBED,

m∠BEC + m∠BED = 180°

m∠BED = 180 - 45

             = 135°

Now, m∠BDE + m∠BED + DBE = 180°

11° + 135°+ m∠DBE = 180°

m∠DBE = 180 - 146

             = 34°

Order of the angles from least to greatest will be,

∠BDE < ∠DBE < ∠BED

Sides opposite to these angles will be in the same order.

BE < ED < BD ----------(2)

From relation (1) and (2),

BC < CE < BE < ED < BD

7 0
3 years ago
Y=6x/5 +27 find y-intercept and slope
mixas84 [53]

Answer:

  1. General equation of a line is given by y = mx +c, where m is the gradient /slope, c is the intercept. To find for the intercept on y- axis, put x = 0.
  2. y =  \frac{6(0)}{5 }  + 27 \\ y =  \frac{0}{5}  + 27 \\ y = 27 \\ therefore \: the \: intercept \: on \: y \: is \: 27 \\
  3. By comparison,
  4. y =  mx +  \: c \\ y =  \frac{6}{5} x  \:  +27 \\ m =  \frac{6}{5 \: }  \: \\  hence \: slope \: is \:  \frac{6}{5}
5 0
3 years ago
Tanisha gets estimates from two auto shops for
Agata [3.3K]

Answer: 1. True 2. True 3. False. Number 4 True

Step-by-step explanation: PLS GIVE ME BRAINIEST

5 0
3 years ago
How do I say this number 51,634,703,001
olasank [31]
Fifty one billion six hundred thirty four million seven hundred three thousand and one
6 0
3 years ago
Other questions:
  • A doctor wants to start a business that produces medical equipment. though she is an expert on medicine, she realizes she'll nee
    11·1 answer
  • Find the unknown angle
    10·2 answers
  • Can irrational numbers also be integers/ True or False
    13·1 answer
  • Miss Penny inherits £910.
    11·2 answers
  • HH represents the height of the tree (in centimeters), t tt years since Renata moved in. H = 210 + 33 t H=210+33tH, equals, 210,
    6·1 answer
  • What is the percent of change from 35 to 62? round to the nearest percent.
    6·1 answer
  • Reduce 2/8 to the smallest form and 3/12 to the smallest form
    11·1 answer
  • Let event A= the place is a city let event B= the place in north America which outcomes are in A or B?
    11·2 answers
  • what i say when someone's ends a sentence with the word period " did you ever finish 1st grade question mark?"
    10·2 answers
  • Which inequality is equivalent to 3+4/x&gt;_x+2/x
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!