Answer:
Part A: $27.32
Part B: $32.24
Step-by-step explanation:
Part A:
$25.30 is the cost, since we are increasing it by the 8% meals tax, we are going to do 25.3 * the decimal form of 8%, or 0.08, plus one so that we already have our 25.3 factored in. Which equals 25.3 * 1.08, which equals 27.324, which we round to $27.32.
Part B:
We take our $27.32 and we times it by 1.18 for the reason stated above, which equals 32.2376, which is rounded to $32.24.
a quantity with an initial value of 2100 decades exponentially at a rate of 0.65% every 10 days what is the value of the quantity after 186 hours to the nearest hundredth
Answer:
The value of the quantity after 186 hours is 2089.41
Step-by-step explanation:
We can use exponential formula
[tex]P(t)=a(1-b)^{\frac{t}{h} }[/tex]
a quantity with an initial value of 2100
so,
[tex]a=2100[/tex]
decays exponentially at a rate of 0.65% every 10 days
So, b=0.0065 when h=10*24=240
now, we can plug values
[tex]P(t)=2100(1-0.0065)^{\frac{t}{240} }[/tex]
now, we can plug t=186
and we get
[tex]P(186)=2100(1-0.0065)^{\frac{186}{240} }[/tex]
[tex]=2089.413[/tex]
Answer:
Q(186) = 2089.463
Step-by-step explanation:
Formula for decaying exponentially:
Q(t) = Q_0 e^{-rt}
where, Q(t)= quantity at time t
Q_0 = initial quantity value (2100)
t = time (186 hours)
r = rate of decaying (0.65)
r = 0.65% = 10 days
1 day = [tex]\frac{0.0065}{10}[/tex]
1 hour = [tex]\frac{0.0065}{240}[/tex]
186 hours = [tex]\frac{0.0065*186}{240}[/tex]
rt = 0.00503
Q(186) = 2100*e^{-0.00503}
= 2089.46
help me and you get 40 points
Answer:
The angle 6 measures 54 degrees
Step-by-step explanation:
Angle 6 is congruent to angle 7 ("-2x+34") as it is an opposite angle in straight line intersection. But angle 6 is congruent to angle 2 (-9x-36) due to the two horizontal lines being parallel. So we can write the following equality to determine the value of x:
-2x + 34 = -9x -36
7x = -70
==> x = -10
Now we can answer the question: the angle 6 is
-2x + 34 = -2(-10)+34 = 54 degrees
424 calories in 3 servings unit rate, round to the nearest tenth or to the nearest cent, if necessary.
Rounded to the nearest tenth, the unit rate of calories per serving is approximately 141.3 calories.
How to find servings unit rate?To find the unit rate of calories per serving, divide the total calories (424) by the number of servings (3).
The unit rate is the amount of calories per serving. To find the unit rate, divide the total number of calories by the number of servings:
Unit rate = Total calories / Number of servings
Unit rate = 424 calories / 3 servings
Dividing 424 calories by 3 servings gives:
Unit rate = 424 / 3 ≈ 141.3 calories per serving
So, the unit rate of calories per serving is approximately 141.0 calories rounded to the nearest tenth or approximately 141.00 calories rounded to the nearest cent.
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Kian bought a shirt for $12 and a pair of jeans for $28. If the sales tax rate is 8.5%, what will the total cost of his purchase be after tax ?
Answer:
$43.40
Step-by-step explanation:
12 + 28
40
40 (1.085) <<< sales tax
43.40
Answer: $43.40
Step-by-step explanation:
Total Cost of products (before sales tax): $12 + $28 = $40
After sales tax: ($40 × 108.5%) ÷ 100% = $43.4 = $43.40
HELP FAST! 15 POINTS! PLEASE HELP!
which table shows a proportional relationship between x and y ?
Answer:
Step-by-step explanation:
Basically, in each option, you have to find the relationship between x and y (for one pair). Like in option #1 - how do you get 1.5 from 3? divide it by 2. Now you apply it for all numbers. It the outcome the same? No. 7 ÷ 2 ≠ 3.
You do the same process for all, until you are left with the last one. y = 50x
The last option is the answer.
PLEASE HELP!!!
A man spent two-thirds of his money and misplaced one-third of the remainder, leaving him with $22. How much money did he originally have?
REWARD 10 POINTS! SORRY ALL I HAVE!
NEED IT VERY FAST!
Thanks!
Final answer:
The man originally had $99. We determined this by setting up an equation based on the remaining amount after spending and misplacing portions of his money, then we solved for the original total.
Explanation:
To solve for the original amount of money the man had, let's call that amount x. First, he spent two-thirds of his money, which is (2/3)x. The remainder is x - (2/3)x = (1/3)x. He then misplaced one-third of this remainder which is (1/3) of (1/3)x = (1/9)x. So the portion he was left with is (1/3)x - (1/9)x = (2/9)x.
Since we know the final amount left is $22, we can express this as an equation:
(2/9)x = $22To find x, we will divide both sides of the equation by (2/9):
x = $22 / (2/9)When dividing by a fraction, we multiply by its reciprocal which is (9/2):
x = $22 * (9/2)x = $99Therefore, the man originally had $99.
887 is what percent of 4132
Answer:
21.46 or 21.5
Step-by-step explanation:
To find the answer to this problem you must divide 877 by 4132, which gets you 0.2146. Then you multiply this answer by 100 to find the percentage; which in this case is 21.46, or 21.5 if you are rounding up. I hope my answer helped you!
887 is 21.47% of 4132, found by dividing 887 by 4132 and multiplying by 100.
To find out what percent 887 is of 4132, you need to use the formula for calculating percentages, which involves dividing the part by the whole and then multiplying the result by 100.
Here is how you can compute it step-by-step:
Divide 887 by 4132, which gives you approximately 0.2147.
Multiply this result by 100 to convert it into a percentage: 0.2147 * 100 = 21.47%.
Therefore, 887 is 21.47% of 4132.
Which answers describe the end behaviors of the function modeled by the graph? f(x)=4 1/3x+3 , Select each correct answer.
As x decreases without bound, f(x) approaches the line y=3 .
As x increases without bound, f(x) increases without bound.
As x increases without bound, f(x) approaches the line y=3 .
As x increases without bound, f(x) decreases without bound.
Answer:
As x decreases without bound, f(x) approaches the line y=3 .
As x increases without bound, f(x) increases without bound.
Step-by-step explanation:
From the given graph f(x), we can see that
When x increases the value of y also increases
When x decreases the y values goes close to 3 but it does not cross 3
As x goes to positive infinity , y approaches positive infinity
As x increases without bound, f(x) increases without bound.
As x goes to negative infinity, y values approaches +3
As x decreases without bound, f(x) approaches the line y=3
As x decreases without bound, f(x) approaches the line y=3 . As x increases without bound, f(x) increases without bound. Therefore, options A and B are correct answers.
The given function is f(x)=4 1/3x+3.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
From the given graph f(x), we can see that
When x increases the value of y also increases
When x decreases the y values goes close to 3 but it does not cross 3
As x goes to positive infinity, y approaches positive infinity
As x increases without bound, f(x) increases without bound.
As x goes to negative infinity, y values approaches +3
As x decreases without bound, f(x) approaches the line y=3
Therefore, options A and B are correct answers.
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Mrs. Green went to a local store to buy a computer that is on sale. The sales tax rate is 7% of the sale price. If Mrs. Green pays a sales tax of $87.50, what is the sales price of the computer?
A company has a monthly profit, or gain, of 6400. The next month they have a loss of 4,700.What expression would you use to find the difference in profit between the two months ?
Answer:
P₂ - P₁ = -11 100
Step-by-step explanation:
The profit for month 1 was P₁.
The profit for month 2 was P₂.
The difference in profit was
Diff. = P₂ - P₁
P₁ = 6400; P₂ = -4700
Diff. = - 4700 - 6400
Diff. = -11 100
HELP! Convert this identity to one using sine terms only !
1-2 cos^2 r=
A. -1-sin^2r
B. 2sin^2r-1
C. 1-2sin^2t
Please explain!
Answer:
option B is correct.
[tex]2\sin^2r - 1[/tex]
Step-by-step explanation:
Given the expression: [tex]1-2\cos^2r[/tex] ......[1]
Using trigonometric identities:
[tex]\sin^2r+ \cos^2r = 1[/tex]
We can rearrange this as;
[tex]\cos^2r = 1-\sin^2r[/tex] ......[2]
Substitute equation [2] into [1] we get;
[tex]1-2(1-\sin^2r)[/tex]
Using distributive property: [tex]a\cdot (b+c) = a \cdot b + a\cdot c[/tex]
[tex]1- 2 +2sin^2r[/tex]
or
[tex]-1+2\sin^2r[/tex]
therefore, the given expression in terms of sine terms is; [tex]2\sin^2r-1[/tex]
Can anyone help I’ll give you brainliest
Answer:
Interest for 1 year is $80.50
Step-by-step explanation:
Simple interest is given by the formula
I =PRT
where I is the interest, P is the principal, R is the rate in decimal form, and T is the time.
P =3500
R=.023
T = 1 (1 year)
I = (3500) * (.023) (1)
I = 80.50
what is the solution to the system of equations below? y=-3x-9 and y=1/3x-39
a. (9, -36)
b. (9,0)
c. (-9, 18)
d. (-9, -42)
The required values of x and y is 9 and -36, respectively. The correct answer is option a.
Given that the system of equations:
y = -3x - 9 (1)
y = (1/3)x - 39 (2)
Setting the two equations equal to each other since they both equal y:
-3x - 9 = (1/3)x - 39
⇒ -3(3x) - 3(9) = (1/3)(3x) - 39(3)
⇒ -9x - 27 = x - 117
⇒ -9x - x = -117 + 27
⇒ -10x = -90
⇒ x = -90 / -10
⇒ x = 9
Substitute the value of x back in the equation (1),
y = -3(9) - 9
⇒ y = -27 - 9
⇒ y = -36
Hence, the solution to the system of equations is x = 9 and y = -36. The correct answer is option a.
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Use elimination to find x-coordinate of the solution of the system 9x-8y=2 -3x-9y=-24
[tex]\left\{\begin{array}{ccc}9x-8y=2\\-3x-9y=-24&\text{multiply both sides by 3}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}9x-8y=2\\-9x-27y=-72\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad-35y=-70\qquad\text{divide both sides by (-35)}\\.\qquad\qquad\boxed{y=2}\\\\\text{Put the value of y to the second equation}:\\\\-3x-9(2)=-24\\-3x-18=-24\qquad\text{add 18 to both sides}\\-3x=-6\qquad\text{divide both sides by (-3)}\\\boxed{x=2}\\\\Answer:\ \boxed{x=2}[/tex]
Answer:
x coordinate is 2
Step-by-step explanation:
We have given,
9x - 8y = 2 .........(1)
-3x - 9y = -24 ...............(2)
We use elimination method to eliminate y.
We multiply equation (1) by 9 and equation (2) by 8.
We get,
{ 9x - 8y = 2} × 9 or 81x - 72y = 18 -------------(3)
{-3x - 9y = - 24} × 8 or -24x - 72y = -192 -----------(4)
And subtract equation (4) from equation (3)
So , (81x - 72y ) - (-24x -72y)= 18 -(-192)
or 105x = 210
or x = 210/105
or x= 2
Hence we get x coordinate as x= 2
Suppose you toss a coin 100 times and get 69 heads and 31 tails. Based on these results, what is the probability that the next flip results in a head ?
The probability that the next flip results in a head is approximately __ ?
Answer:
69% or 69/100
Step-by-step explanation:
It's experimental odds based off of experience.
The probability of getting a head on the next flip is 69%.
Explanation:In order to determine the probability of getting a head on the next flip, we must first analyze the given data. The number of heads obtained in the first 100 flips is 69, while the number of tails is 31. Based on this information, we can calculate the proportion of heads to the total number of flips. The probability of getting a head on the next toss is therefore 69/100 = 0.69 or 69%.
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Please help!Which expression is equal to ....
Notice how the x-2 on the numerator and denominator cancel out, as well as the x+1. You are left with 8(x+2)/4 which is 2(x+2) which results in your answer, B, or 2x+4.
find the value of 2 numbers if their sum is 24 and their difference is 4?
Answer:
10 & 14
Step-by-step explanation:
10 + 14 = 24
14 - 10 = 4
!!!!Which ordered pair in the form of (x, y) are solutions to the equation 7x - 5y =28
Answer:
(-6,-14)
Step-by-step explanation:
what is the slope-intercept form for a line that has a slope of -4/5 and passes through points (0,7)?
[tex]\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{7})~\hspace{10em} slope = m\implies -\cfrac{4}{5} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-7=-\cfrac{4}{5}(x-0) \\\\\\ y-7=-\cfrac{4}{5}x\implies y=-\cfrac{4}{5}x+7[/tex]
How do you do 5-29?
Answer:
a: x=16 y=8
b. x=6 y=28
Step-by-step explanation:
Solve log4 (y – 9) + log4 3 = log4 81.
[tex]\text{Domain}\\\\y-9 > 0\to y>9\\\\------------------------\\\\\log_4(y-9)+\log_43=\log_481\qquad\text{use}\ \log x+\log y=\log(xy)\\\\\log_4[3(y-9)]=\log_481\qquad\text{use distributive property}\\\\\log_4(3y-27)=\log_481\iff3y-27=81\qquad\text{add 27 to both sides}\\\\3y=108\qquad\text{divide both sides by 3}\\\\\boxed{y=36}\in D\\\\Answer:\ \boxed{y=36}[/tex]
Answer:
y = 36
Step-by-step explanation:
log4 (y – 9) + log4 3 = log4 81.
We know from the property of logs that if the bases are the same, when we subtract logs, we can divide what is inside
loga (b) + loga (b) = loga (b*c)
Lets simplify the expression log4( (y-9)*3) = log4 (81)
Since the bases are the same, what is inside the parentheses on the left hand side must be equal to what is inside the parentheses o the right hand side
(y-9)*3 = 81
Divide each side by 3
(y-9)*3 /3= 81/3
y-9 = 27
Add 9 to each side
y-9+9 = 27+9
y = 36
If you deposit $1030 in an account that earns 6% interest compounded quarterly. Find the amount of money after 12 years.
Answer:
2072.56
Step-by-step explanation:
a=1030(1+0.06)^12
Answer:
$2072.60
Step-by-step explanation:
Every year you add on 6% so the multiplier will be 1.06
so start off:
1030 x 1.06 = 1091.8
1091.8 x 1.06 = 1157.308
.......... you repeat this 12 times for every year and the final answer is
2072.6562366
you take that answer and round it to 2072.60
Hope this helps :)
Find two numbers if their difference is 90, and their ratio is 5:8.
Answer:
150 and 240 are the two numbers having difference as 90 and ratio as 5 : 8.
Step-by-step explanation:
Since ratio of two numbers is 5 : 8 ,
lets assume two numbers be 5x and 8x.
Difference of two numbers = 8x - 5x = 90
⇒3x =90
⇒x = 90/3=30
so two numbers are 5x = 5 × 30 = 150 and 8x = 8 × 30 = 240
Hence 150 and 240 are the two numbers having difference as 90 and ratio as 5 : 8.
What is the distance between points (2, −8) and (2, 7) on a coordinate plane?
Enter your answer in the box.
Answer:
15 points vertically.
Step-by-step explanation:
change -8 to 8, then add the 2 numbers in the y axis and you will get 15. brainliest?
Sue sold 26 more newspapers than bill, and bill sold three times as many as Harry. If Harry sold p newspapers, how many did Sue sell?
Answer:
3p + 26
Step-by-step explanation:
Let S = Sue's newspapers sold
B = Bill's newspapers sold
H = Harry's newspapers sold.
We have three conditions:
(1) S = B + 26
(2) B = 3H
(3) H = p Substitute (3) into (2)
(4) B = 3p Substitute (4) into (1)
S = 3p + 26
Sue sold 3p + 26 newspapers.
Simplify.
Write your answer without parentheses.
Answer:
Simplifying the expression eliminating the parentheses:
(-5 u^2 w)^3 = -125 u^6 w^3
Step-by-step explanation:
(-5 u^2 w)^3 = (-5)^3 (u^2)^3 (w)^3
(-5 u^2 w)^3 = (-5)(-5)(-5) u^(2 x 3) w^3
(-5 u^2 w)^3 = -125 u^6 w^3
Laboratory tests show that the lives of light bulbs are normally distributed with a mean of 750 hours and a standard deviation with a mean of 750 hours and a standard deviation of 75 hours. find the probability that a randomly selected light bulb will last between 750 and 825 hours.
The probability that a randomly selected light bulb will last between 750 and 825 hours is 34.13%. This is calculated through standardization of the desired range into z-scores, and reference to the standard normal distribution table.
Explanation:The question is about finding the probability that a randomly selected light bulb will last between 750 and 825 hours, given that the life of light bulbs is normally distributed with a mean of 750 hours and a standard deviation of 75 hours.
Firstly, standardize the desired range by subtracting the mean and dividing by the standard deviation. This will give us the z-score: Z = (X - μ) / σ. For X = 750, Z1 = (750 - 750) / 75 = 0. For X = 825, Z2 = (825 - 750) / 75 = 1.
We can then use the Z-table or standard normal distribution table to find the probability associated with these z-scores. Since the z-score for 750 is 0, the probability is 0.5 (or 50%, as it's the mean). For z=1, the probability is 0.8413 (or 84.13%).
The probability that the bulb will last between 750 and 825 hours is then calculated by subtracting the smaller probability from the larger one: 0.8413 - 0.5 = 0.3413 or 34.13%
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To find the probability, calculate the z-scores for the values and use the standard normal distribution table which is 34.13%
Explanation:To find the probability that a randomly selected light bulb will last between 750 and 825 hours, we need to calculate the z-scores for both values and then use the standard normal distribution table. The z-score is calculated using the formula:
z = (x - μ) / σ
where x is the value, μ is the mean, and σ is the standard deviation. For 750 hours, the z-score is 0, and for 825 hours, the z-score is (825 - 750) / 75 = 1.
Using the standard normal distribution table, the probability corresponding to a z-score of 0 is 0.5, and the probability corresponding to a z-score of 1 is 0.8413.
Therefore, the probability that a randomly selected light bulb will last between 750 and 825 hours is 0.8413 - 0.5 = 0.3413, or 34.13%.
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What is answer I need it ASAP
Answer:
48 pages
Step-by-step explanation:
So Colton's rate of using pages is:
9 pages/3 hours = 3 pages per hour.
Thus, we can find out how many pages he uses after 16 hours by multiplying
3 pages × 16 hours, which equals to 48 pages of notes.
Hope this helps!
Leila and Joe are two partners in a business. Leila makes $5 in profits for every $8 that Jo makes. If Jo makes $32 profit on the first item they sell, how much profit does Leila make?
Leila will make $—- in profits.
I am a butterfly! Look at my wings! Lol.
Anyways. 8*4=32
5*4=20
Leila made $20
-TheOneandOnly003
In a auditorium, there are 9 rows of 18 seats in each row. There are also 6 rows of seats with 24 seats in each row. How many seats are in the auditorium? Estimate first. Check for reasonableness.
Answer:
306
Step-by-step explanation:
9 times 18= 162
24 times 6= 144
144+162=306