Answer:
for each 1 minute of talk time, the bill goes up 5¢.
I think it has to either be
--The average rate of change is $0.05, meaning that for each minute of talk time, the monthly bil increaes by $0.05
or
--The avaerage rate of change is $0.05, meaning that for every ten minutes of talk time, the bill increases by $0.05
Answer:
C. The average rate of change is $0.05, meaning that for each minute of talk time, the monthly bill increases byStep-by-step explanation:
Average rate of change during 40 min:
(21.95 - 19.95)/40 = 2/40 =$0.05This number reflects the average cost of talk for each minute
Correct answer choice C
The average rate of change is $0.05, meaning that for each minute of talk time, the monthly bill increases byWhat is the y-intercept of y = –3x + 6?
Simplify the following expression:
-13^2=?
Answer: -13 x -13 = 169
Step-by-step explanation: you have to multiply -13 two times and a negative time a negative equals a positive
PLEASE PLEASE HELP I NEED IT ASAP
Answer:
c = 122
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesGeometry
Definition of a Line: A line is 180°Step-by-step explanation:
Step 1: Set up equation
(c - 3)° + 61° = 180°
Step 2: Solve for c
Combine like terms: c + 58 = 180Subtract 58 on both sides: c = 122And we have our final answer!
Which values from the set make this inequality true?
4n<16 ; {1, 2, 3, 4}
Select each correct answer.
1
2
3
4
Answer:
4
Step-by-step explanation:
The answer would be D
Answer:
1,2,3
Step-by-step explanation:
you cant let them be equal its an inequality
please need help fast
Answer:
6/10
Step-by-step explanation:
The answer is A
An individual chooses a prime number that is less than 13. What is the probability that the number is odd? Write your answer as an exact fraction which is reduced as much as possible.
Answer:
4/5
Step-by-step explanation:
Okay, I'm pretty sure about this one! I might be wrong but:
If the number is prime and LESS than 13 (so it can't be 13 either), it's either 2, 3, 5, 7, or 11. Those are 5 numbers in all, and 4 of those are odd. So the fraction would be 4/5!
I might have done this wrong, but I hope it helps!! Have a nice day c:
Which is greater 0.35. Or 2/5
Answer:
2/5
Step-by-step explanation:
2 divided by 5 is 0.4 which is greater than .35
Answer:
0.35 < 2 /5
Step-by-step explanation:
Simplifying then comparing both terms 0.35 and 2/ 5 .
0.35 is less than 0.4 which means that the first term is less than the second term.
Professor Gersch grades his exams and sees that the grades are normally distributed with a mean of 77 and a standard deviation of 6.Based on the Empirical Rule, between what two grades should you expect to find roughly the middle 95% of the distribution?a. 65 to 89b. 77 to 83c. 71 to 83d. 77 to 89e. 59 to 95
Answer:
The correct option is a. 65 to 89.
Step-by-step explanation:
According to the Empirical Rule in a normal distribution with mean µ and standard-deviation σ, nearly all the data will fall within 3 standard deviations of the mean. The empirical rule can be broken into three parts:
• 68% data falls within 1 standard deviation of the mean. That is P (µ-σ≤X≤ µ+σ) = 0.68.
• 95% data falls within 2 standard deviations of the mean. That is P (µ-2σ≤X≤ µ+2σ) = 0.95.
• 99.7% data falls within 3 standard deviations of the mean. That is P (µ-3σ≤X≤ µ+3σ) = 0.997.
The information provided is:
[tex]\mu=77\\\sigma = 6[/tex]
Use the Empirical rule to compute the middle 95% of the distribution as follows:
[tex]P(\mu-2\sigma\leq X\leq \mu+2\sigma)=0.95\\\\\mu-2\sigma=77-(2\times 6)=65\\\\\mu+2\sigma=77+(2\times 6)=89\\\\\Rightarrow P(65\leq X\leq 89)=0.95[/tex]
Thus, the correct option is a. 65 to 89.
In a 6th grade class there are 30 students. Out of these students, 3/5 achieved AL in Math and 2/6 achieved ML. Assuming that no student failed, find the number of students that achieved CL.
Answer: 2
Step-by-step explanation:
3/5 of 30 = 18(AL)
2/6 of 30 = 10 (ML)
18+10 = 28 (AL+ ML)
the remainder
30-28 = 2 (CL)
What is 6x3-69+12x4-7x(9x3)+7-1?
Answer:
44
Step-by-step explanation:
6 times 3 is 18 so.. 18 minus 69 would be -36 plus 12 is a positive 1 times 14 would be 14 minus 7 would be 7 7 times 27 would 38 plus 7 would be 45 minus one would be 44
Answer:
-186
Step-by-step explanation:
6x3-69+12x4-7(27)+7-1
18-69+48-189+7-1
-51+48-189+7-1
-3-189+7-1
-192+7-1
-185-1
-186
Help please this sucks lol
Answer:
x = -4
Step-by-step explanation:
Equation of the Line
It can be written in the slope-intercept form as:
y = mx + b
Where m is the slope of the line and b is the y-intercept.
For horizontal lines, m=0. For slanted lines, m can have any real value.
Vertical lines have an infinite slope and the above equation cannot be used.
Vertical lines have a fixed value for x, thus the equation is:
x = h
If the vertical line goes through the point (-4,1), then its equation is:
x = -4
5w 2-6 + 11 help pls
Answer:
5
2
−
6
+
1
1
5
w
2
−
6
+
11
5w2−6+11
Simplify
1
Add the numbers
5
2
−
6
+
1
1
5
w
2
−
6
+
11
5w2−6+11
5
2
+
5
Step-by-step explanation:
What is 2.27 kg in pounds
Answer:
5.004493
Step-by-step explanation:
Answer:
2.27 kg is about 5 pounds.
Step-by-step explanation:
1 kilogram = 2.2 pounds
So, we have to multiply 2.2 by the amount of kilograms, which in this case, is 2.27.
2.27 x 2.2 = 4.994 or 5 when rounded to the nearest whole number.
Therefore, 2.27 kg = 5 lbs
Hope this helps! :)
What value of g makes the equation 32 + 3g = 4g + 20.5 true
Answer:
g= 11.5
Step-by-step explanation:
32+3g = 4g+20.5
11.5+3g = 4g
11.5 = 1g
11.5 = g
What are three different things you know about squares? List them.
Answer:
1) There are 4 sides in a square where all the sides are equal
2) Squares have 90 degree angles!
a nd three) it has 4 equal angles
Answer:
- all four sides are equal
- 4 right angle corners (90 degree corners)
- its also a rectangle with equal sides and a rhombus with right angles.
Step-by-step explanation:
Find the volume of a rectangle prism with length 4 m width 6 mans height 11 m.
Answer:
264 m^3
Step-by-step explanation:
4 m * 6 m * 11 m = 264 m^3
Answer:
264
Step-by-step explanation:
Google!
Hope this helps. Good luck!
what is the value of x when 3x < -2x + 15
Answer:
X < 3
Step-by-step explanation:
To solve the equation 3x < -2x+15
the steps are as follow:
+ 2x to both sides
Result: 5x < 15
Then divide by 5 to both sides to get x alone.
Final Product:
x < 3
2. Solve the following pair of simultaneous equations
0.6x - 4y=-1
1
0.8x -3.5y =0.5
2
Answer:
After solving the pair of simultaneous equations we get x=5 and y=1. Solution Set = {5,1}
Step-by-step explanation:
We need to solve the pair of simultaneous equations
[tex]0.6x-4y=-1\\0.8x-3.5y=0.5[/tex]
We can solve using substitution method.
Let:
[tex]0.6x-4y=-1--eq(1)\\0.8x-3.5y=0.5--eq(2)[/tex]
Find value of x from eq(1) and put it in eq(2)
[tex]From \ eq(1):\\0.6x-4y=-1\\0.6x=-1+4y\\x=\frac{-1+4y}{0.6}[/tex]
Putting in equation 2
[tex]0.8x -3.5y =0.5\\0.8(\frac{-1+4y}{0.6})-3.5y=0.5\\1.33(-1+4y)-3.5y=0.5\\-1.33+5.32y-3.5y=0.5\\-1.33+1.82y=0.5\\1.82y=0.5+1.33\\1.82y=1.83\\y=\frac{1.83}{1.82}\\y=1.00[/tex]
So, we get value of y= 1.00
Now finding value of x by putting value of y in eq(1)
[tex]x=\frac{-1+4y}{0.6}\\x= \frac{-1+4(1.00)}{0.6}\\x=\frac{3}{0.6}\\x=5[/tex]
We get value of x = 5
So, After solving the pair of simultaneous equations we get x=5 and y=1. Solution Set = {5,1}
A department store sells a pair of shoes with an 87% markup. If the store sells the shoes for 193.21 what is the non-markup price
Answer:
$222.08
Step-by-step explanation:
To find the original price, divide 193.21 by 0.87:
193.21/0.87
= 222.08
So, the non-markup price was $222.08
1. Three times a number added to four
times a number, subtract five.
Answer:
45
Step-by-step explanation:
Answer:
3x 4x and -5 so
3x+4x-5 is the answer
-2.45 + 5.5x -4.3x = 1.3 +0.7x
Answer:
The answer would be x=7.5
Step-by-step explanation:
Answer:
x=7.5
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
−2.45+5.5x−4.3x=1.3+0.7x
−2.45+5.5x+−4.3x=1.3+0.7x
Step 2: Combine Like Terms
(5.5x+−4.3x)+(−2.45)=0.7x+1.3
1.2x+−2.45=0.7x+1.3
1.2x−2.45=0.7x+1.3
Step 3: Subtract 0.7x from both sides.
1.2x−2.45−0.7x=0.7x+1.3−0.7x
0.5x−2.45=1.3
Step 4: Add 2.45 to both sides.
0.5x−2.45+2.45=1.3+2.45
0.5x=3.75
Step 5: Divide both sides by 0.5.
0.5x/0.5=3.75/0.5
so
x = 7.5
Are the lines parallel, perpendicular, or neither? 2x-3y=4 and 6y=4x+1
Answer:
parallel
Step-by-step explanation:
first to help me with this gets the brainliest
Answer: -26 i think srry if im wrong
Step-by-step explanation:
14 black balls and 6 white balls are placed in an urn. Two balls are then drawn in succession. What is the probability that the second ball drawn is a white ball if the second ball is drawn without replacing the first ball?a) 0.3333
b) 0.2381
c) 0.0952
d) 0.2143
e) 0.3111
Answer:
[tex]Probability = 0.30[/tex]
Step-by-step explanation:
Given
Represent Black with B and White with W
[tex]B = 14[/tex]
[tex]W = 6[/tex]
Required
Probability of the second selection being white
This means that: The first selection could be white or black but the second must be white.
This probability would be represented as thus:
[tex]Probability = (P(W)\ and\ P(W))\ or\ (P(B)\ and\ P(W))[/tex]
And it is calculated as:
[tex]Probability = (\frac{n(W)}{Total} * \frac{n(W)-1}{Total - 1}) + (\frac{n(B)}{Total} * \frac{n(W)}{Total - 1})[/tex]
Notice that, the second selection has total -1 has its denominator. This is so because, the first selection was made without replacement
So, the formula becomes
[tex]Probability = (\frac{6}{20} * \frac{6-1}{20- 1}) + (\frac{14}{20} * \frac{6}{20- 1})[/tex]
[tex]Probability = (\frac{6}{20} * \frac{5}{19}) + (\frac{14}{20} * \frac{6}{19})[/tex]
[tex]Probability = \frac{30}{380}+ \frac{84}{380}[/tex]
[tex]Probability = \frac{30 + 84}{380}[/tex]
[tex]Probability = \frac{114}{380}[/tex]
[tex]Probability = 0.30[/tex]
The probability that the second ball drawn is a white ball if the second ball is drawn without replacing the first ball is 0.33.
Given :
14 black balls and 6 white balls are placed in an urn. Two balls are then drawn in succession.The formula given below can be used in order to determine the probability that the second ball drawn is a white ball if the second ball is drawn without replacing the first ball.
[tex]\rm P = \left(\dfrac{n(W)}{Total}\times \dfrac{n(W)-1}{Total-1}\right)+ \left(\dfrac{n(B)}{Total}\times \dfrac{n(W)}{Total-1}\right)[/tex]
Now, substitute the values of known terms in the above formula.
[tex]\rm P = \left(\dfrac{6}{20}\times \dfrac{6-1}{20-1}\right)+ \left(\dfrac{14}{20}\times \dfrac{6}{20-1}\right)[/tex]
Simplify the above expression.
[tex]\rm P = \dfrac{30}{380}+\dfrac{84}{380}[/tex]
[tex]\rm P =\dfrac{114}{380}[/tex]
P = 0.33
So, the probability that the second ball drawn is a white ball if the second ball is drawn without replacing the first ball is 0.33.
Therefore, the correct option is a).
For more information, refer to the link given below:
https://brainly.com/question/23044118
Evaluate the expression
if a = 3, b = 4, c = 12
(2c + ab)
с
Answer:
Answer- 432
Step-by-step explanation:
a= 3
b=4
c=12
(2(12) + (3)(4))12
(24 + 12)12
288 +144 = 432
2x−3, find h(6)h(6).
Answer:
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you
Step-by-step explanation:
Answer:
654
Step-by-step explanation:
Perform the indicated operation
Answer:
(g o h)(t) = -4t² - 16t + 3
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesAlgebra I
Composition of functionsStep-by-step explanation:
Step 1: Define
g(t) = -4t + 3
h(t) = -t² + 4t
(g o h)(t) = g(h(t))
Step 2: Find
Substitute: (g o h)(t) = -4(t² + 4t) + 3Distribute -4: (g o h)(t) = -4t² - 16t + 3And we have our final answer!
There are 80 tickets in a bag and the ratio of winning tickets to losing tickets is 2:8. How many of each kind of ticket are in the bag?
Answer:
There are 16 winning tickets and 64 losing tickets
Step-by-step explanation:
Total no of tickets in a bag = 80
The ratio of winning tickets to losing tickets is 2:8.
Let there are 2x winning tickets and 8x losing tickets.
ATQ,
2x+8x=80
10x=80
x = 8
Winning tickets = 2x = 2(8) = 16
Losing tickets = 8x = 8(8) = 64
Hence, there are 16 winning tickets and 64 losing tickets.
On January 1, 2012, Instaform Company issued 10% bonds with a principal amount of $ 50 million, dated January 1. The bonds mature in 2031 (20 years). The market yield for bonds of similar risk and maturity is 12% Interest is paid semiannually.
Required:
1. Determine the price of the bonds at January 1, 2012, and prepare the journal entry to record their issuance by Instaform.
2. Assume the market rate was 9%. Determine the price of the bonds at January 1, 2012, and prepare the journal entry to record their issuance by Instaform.
3. Assume Broadcourt Electronics purchased the entire issue in a private placement the bonds. Using the data in requirement 2. prepare the journal entry to record their purchase by broadcourt
Answer:
Step-by-step explanation:
Help! - 20 POINTS!!!
Thanks!
Answer:
b
Step-by-step explanation: