Brian has earned 65%, 80% and 92% on his three pre-final exams. These exams are not weighed equally: the lowest counts for only 20% of his overall grade, while the other two count for 25% each. If the final exam is the remainder of the overall grade and there are no opportunities for extra credit, what is the highest grade Brian can earn in the class? Express your answer to the nearest whole percent.

Answers

Answer 1

Answer:

89.25%

Step-by-step explanation:

65 is the lowest so it only counts for 20% of the grade

65*0.2=16.25

80*0.25=20

92*0.25=23

There is 30% left and 100% is the highest score

100*0.3=30

16.25+20+23+30=89.25

Answer 2

Answer:

86%

Step-by-step explanation:

From the information give:

Exam 1

Exam result = 65%

Overall grade weighting = 20%

⇒ Credit = 65% of 20% = 0.65 × 0.2 = 0.13 = 13%

Exam 2

Exam result = 80%

Overall grade weighting = 25%

⇒ Credit = 80% of 25% = 0.8 × 0.25 = 0.2 = 20%

Exam 3

Exam result = 92%

Overall grade weighting = 25%

⇒ Credit = 92% of 25% = 0.92 × 0.25 = 0.23 = 23%

Final Exam

The highest grade Brian can earn = 100%

Overall grade weighting = 100% - 20% - 25% - 25% = 30%

⇒ Credit = 100% of 30% = 1 × 30% = 30%

Highest potential class grade

Sum of each exam credit:

⇒ 13% + 20% + 23% + 30% = 86%

Therefore, the highest grade possible that Brian can earn in the class is 86%.


Related Questions

If the volume of the bat is 82
cubic inches, what is the remaining volume that will be filled with packing peanuts? Show and explain your
work.

Answers

The volume that is left to be filled is approximately: 3,332.6 in.³

What is the Volume of a Box?

Volume of a box = (length)(width)(height)

Given the following:

Volume of the bat = 82 cubic in.

Length of box = 30 in.

Width = 18.97 in.

Height = 6 in.

The remaining volume to be filled = volume of box - volume of bat

= (30)(18.97)(6) - 82

= 3,332.6 in.³

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Choose correct simplification of x^12z^11/x^2z^4

Answers

The correct simplification of x^12z^11/x^2z^4 is [tex]x^{10}z^{7[/tex]

How to simplify the expression?

The expression is given as:

x^12z^11/x^2z^4

Rewrite properly as

[tex]\frac{x^{12}z^{11}}{x^2z^4}[/tex]

Apply the quotient law of indices

[tex]x^{12-2}z^{11-4}[/tex]

Evaluate the difference

[tex]x^{10}z^{7[/tex]

Hence, the correct simplification of x^12z^11/x^2z^4 is [tex]x^{10}z^{7[/tex]

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I would to know how to solve this question

Answers

The information given about the probability shows that the expected maintenance cost is $22950.

How to calculate the cost?

From the information given, the repair hours and the probability are given.

In this case, the maintenance cost will be:

= (8 × 0.05) + (10 × 0.12) + (12 × 0.15) + (14 × 0.32) + (15 × 0.22) + (17 × 0.14) × $1700

= 13.50 × $1700

= $22950

In conclusion, the correct option is D.

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Look at angle UVY and angle YVW in the image below. Which of the following is the best description for this pair of angles?

Answers

This is a pair of supplementary angles. A supplementary angle means that all angles involved add up to 180 degrees. We know that it is 180 degrees because of the flat line.

Part D
Whose tiles cover more area per tile? Use complete sentences to explain your reasoning.

Answers

The person that would cover the most tile is Bruce because 1/4 is bigger than 1/6.

How to solve for the size of the tiles

Bruce has been said to have the need for 1/4 square foot of tiles

Felicia on the other hand would need

1/6 for 1 sq foot

12 for 2 square foot

18 for 3 square foot

Bruce is knwon to cover

[tex]\frac{1}{4} x[/tex]

For felicia one square foot is covered by 1/6th

Now we have to know the one that is larger.

1/4 is bigger than 1/6

Hence we can conclude that Bruce is going to cover a larger are than Felicia.

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Answer: The person who covered the most tiles is Bruce, because 1/4 is bigger than 1/9.

Step-by-step explanation:


21' 9" - 13' 1"

feet
<
>
Inches

Answers

Answer: 104 inches or 8' 8"

Step-by-step explanation:

1 foot = 12 inches

21 * 12 = 252 inches + 9 = 261 inches

13 * 12 = 156 + 1 = 157 inches

261 - 157 = 104 inches

104 / 12 = 8' 8"

Write the following number in Standard Form: 4.32x 10^-5

Answers

Answer:

0.0000432

Step-by-step explanation:

In scientific notation, 10 raised to a negative number means that the number is less than 1. If the exponent is -5, the decimal place needs to be moved to the left 5 places. This makes the number in standard form: 0.0000432.

Let z = equals 38 (cosine (startfraction pi over 8 endfraction) i sine (startfraction pi over 8 endfraction) ) and w = 2 (cosine (startfraction pi over 16 endfraction) i sine (startfraction pi over 16 endfraction) ) . what is the product of zw?

Answers

It sounds like you're saying

[tex]z = \dfrac38 \left(\cos\left(\dfrac\pi8\right) + i \sin\left(\dfrac\pi8\right)\right)[/tex]

[tex]w = 2 \left(\cos\left(\dfrac\pi{16}\right) + i \sin\left(\dfrac\pi{16}\right)\right)[/tex]

The product [tex]zw[/tex] is obtained by multiplying the moduli and adding the arguments. In other words

[tex]z = |z| e^{i\arg(z)} \text{ and } w = |w| e^{i\arg(w)} \implies zw = |z||w| e^{i(\arg(z)+\arg(w))}[/tex]

where [tex]e^{it}=\cos(t)+i\sin(t)[/tex], so that

[tex]zw = \dfrac38\times2 \left(\cos\left(\dfrac\pi8+\dfrac\pi{16}\right) + i \sin\left(\dfrac\pi8 + \dfrac\pi{16}\right)\right) = \boxed{\dfrac34 \left(\cos\left(\dfrac{3\pi}{16}\right) + i \sin\left(\dfrac{3\pi}{16}\right)\right)}[/tex]

Compute the probability of tossing a six sided die and getting a 7.

Answers

Answer:

0/6

Step-by-step explanation:

There are 6 numbers on the die: 1, 2, 3, 4, 5, 6

As you can see there is no 7, so the possibility is 0/6.

Given the slope of -4 that you just found. What is the slope-intercept equation of a line passing through (4, 9) and (6, 1) in the standard (x, y) coordinate plane? Use the point (4, 9) to find your equation. The line equation in slope-intercept form is Given the slope of -4 that you just found . What is the slope - intercept equation of a line passing through ( 4 , 9 ) and ( 6 , 1 ) in the standard ( x , y ) coordinate plane ? Use the point ( 4 , 9 ) to find your equation . The line equation in slope - intercept form is​

Answers

Answer:

y = -4x + 25

Step-by-step explanation:

You are given the slope, but you can find the slope using 2 points.  Slope is the change in y over the change is x.  Your two y's are 1 and 9.  Your two x's are 6 and 4.

1-9/6-2  

1 - 9 = -8

6-4 = 2

-8/2 is -4.

We want an equation in the form y = mx +b.  We have the m (slope), we now just need the b.  We take either of the ordinal points (4,9) or (6, 1) to find b.  They will both work, but the question tells us to us (4,9).  4 is the x and 9 is the y.

y = mx + b

9 = (-4)(4) + b  a negative times a positive is a negative.

9 = -16 + b  Add 16 to both sides

25 = b

We know now m which is -4 and b which is 25.  We plug them into the model y = mx + b

y = -4x + 25

How would you write 8^5 as a multiplication expression? A. 8 × 5 B. 8 × 8 × 8 × 8 × 8 C. 5 × 5 × 5 × 5 × 5 × 5 × 5 × 5 Reset Next

Answers

Answer:

8*8*8*8*8

Step-by-step explanation:

Answer:

8 x 8 x 8 x 8 x 8

Step-by-step explanation:

8^5 is basically 8 times itself five times.

The operating costs of a swimsuit distributor are $120,000 per year plus $23 per swimsuit. The current partners have
500,000 to spend and are considering a new partner who has $150,000. How many swimsuits can they produce with and
without the new partner?

Answers

The swimsuits that can be produced with the new partner is  23,043.

The swimsuits that can be produced without the partner is  16,521.

How many swimsuits can be produced?

The equation that relates total cost, operating cost and cost per swimsuit together is

Total cost = operating cost + (cost per swimsuit x number of swimsuits)

500,000 = 120,000 + ($23x s)

500,000 - 120,000 = 23s

380,000 = 23s

s = 380,000 / 23

s = 16,521

Number of swimsuits that can be produced with the new partner:

(500,000 + 150,000)  = 120,000 + ($23x s)

650,000 = 120,000 + 23s

650,000 - 120,000 = 23s

530,000 = 23s

s = 530,000 / 23

s = 23,043

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QUICK PLEASE. Calculate the final amount if $10 000 invested for 6 years at 4% compounded quarterly.

Answers

The final amount if $10 000 invested for 6 years at 4% compounded quarterly is $12,697

Compound interest

The formula for calculating the compound interest is given as:

A = P(1+r/n)^nt

Given the following parameters

A = 10000(1+0.04/4)^4(6)

A = 10000(1+0.01)^24

A = 10000(1.01)^24

A = 1.2697(10,000)

A = $12,697

Hence the final amount if $10 000 invested for 6 years at 4% compounded quarterly is $12,697

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The adjacent sides of the parallelogram are (x + 3) and (x + 2). Find the perimeter of the parallelogram.

Answers

Answer:

P = 4x+10

Step-by-step explanation:

So a parallelogram has 2 set of sides which are parallel and equal. So if you're given two adjacent sides, that means you're given a side from each set of sides, which are equal. This means the perimeter is simply: 2(x+3) + 2(x+2). This can be further simplified by distributing the 2 which gives you the equation: 2x+6+2x+4, which further simplifies to 4x+10.

What’s the correct answer answer asap

Answers

Answer:

I believe the answer is B, it makes the most sense

Step-by-step explanation:

x²+x-6
p= -2, q=3.
Factor the quadratic trinomial.
What are the binomial factors?
O(x + 2)(x-3)
O(x-2)(x+3)
O(p-2)(q + 3)

Answers

Pretty sure it’s the middle one, i think

Find the value of f(g(-1).

Answers

Answer: -8

Step-by-step explanation:

[tex]g(-1)=2(-1)+5=3\\\\f(g(-1))=f(3)=1-3^{2}=\boxed{-8}[/tex]

Answer:

b.) f(g(-1)) = -8

Step-by-step explanation:

Given following:

f(x) = 1 - x²g(x) = 2x + 5

Start solving from the right while doing these sums.

f(g(-1))f(2(-1) + 5)f(3)1 - (3)²1 - 9-8

A bakery sold 12 vanilla cupcakes in a day, which was 6% of the total number of cupcakes sold that day. How many total cupcakes did the bakery sell that day?

Answers

Answer:

200 cupcakes

Step-by-step explanation:

12 cupcakes = 6%

12/x=6/100 6x=1200 x=200

so 200 cupcakes

hope this helps

The total number of cupcakes the bakery sells that day is 200.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

Given that,

A bakery sold 12 vanilla cupcakes in a day, which is 6% of the total cupcakes.

Let's say the total cupcakes were x

Then,

6% of x = 12

6 × x/100 = 12

Divide both sides by 6

x/100 = 2

Multiply both sides by 100

x = 200

Hence "The total number of cupcakes the bakery sells that day is 200".

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John needs 150 feet of rope to section off part of his barn. At a local hardware store he can buy a 30 yard spool for $24 or he can buy 150 foot at $.25 per foot. Which is the better buy?

Answers

Answer:

30 yards for 24 vs 1 foot for 25 cents

so lets multiple the yards by 3 to see how many feet

90 feet = 30 yards

90 feet 24 dollars

now lets divide 90 by 24

3.75 so 3.75 per foot

so the second one is way better

Hope This Helps!!!

Answer:

150 feet at $.25 per foot ($.75 per yard) is the better buy.

Step-by-step explanation:

150 feet is equal to 50 yards. So 2 30-yard spools would be $48. $48 for 60 yards equals $.80 per yard. So 150 feet at $.25 per foot ($.75 per yard) is the better buy.

Alice and Dakota are packing gift boxes. Alice has already packed 21 additional boxes and is packing 8 additional boxes per hour. Dakota has already packed 28 additional boxes and is packing 6 additional boxes per hour. Which function can Alice and Dakota use to determine the total number of boxes they have packed after x hours? How many boxes will they have packed after 4 hours

Answers

Dakota would have 52 boxes after 4 hours and Alice would have 52 boxes with a total of 104 boxes

A cube has side length a. The side lengths are decreased to 50% of their original size. Write an expression in simplest form for the volume of the new cube in terms of a. An expression is .

Answers

Answer: (a * 50%)^3

Step-by-step explanation:

length = a

(a * 50%)^3

If a would've been the length and would've been decreased to 50%, the volume would be equal to that expression.

when a relation is drawn on an xy-plane what is another name for the set of all x values from its graph

Answers

When a relation is drawn on an xy-plane, another name for the set of all x values from its graph is a function.

What is a function?

It should be noted that a function simply means an expression or rule that defines a relationship between variables.

In this case, when a relation is drawn on an xy-plane, another name for the set of all x values from its graph is a function.

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The population of Nowhere, USA was estimated to be 886,000 in 2004, with an expected increase of 4% per year. At the percent of increase given, what was the expected population in 2005? Round your answer to the nearest whole number.

Answers

Answer:

y=886000(1.04)^t

t=1 year so answer is 886000*1.04 = 921440

What is the weighted average cost of capital if a business has a cost of equity of 12%, a cost of debt of 10%, tax rate of 25%, 20 million market value of debt, and 60 million market value of equity?

Answers

If the cost of equity is 12% , cost of debt 10%, tax rate 25%, 20 million market value of debt , 60 million market value of equity then the weighted average cost of capital is 10.875%

Given cost of equity is 12% , cost of debt 10%, tax rate 25%, 20 million market value of debt , 60 million market value of equity.

We know that weighted average cost of capital= cost of equity* weight of equity+ cost of debt* weight of debt.

Cost of debt (consider after tax)=10%(1-25%)

=10%*0.75

=0.075

Weight of equity=60/80

=0.75

Weight of debt=20/80

=0.25

Weighted average cost of capital=12%*0.75+0.075*0.25

=0.09+0.01875

=0.10875

=10.875%

Hence the weighted average cost of capital is 10.875%

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PLEASE ANSWER ,Part I

In terms of the trigonometric ratios for ΔBCE, what is the length of CE? Insert text on the triangle in GeoGebra to show the length of CE. Take a screenshot of the triangle with the text, save it, and insert the image in the space below.

Answers

By applying the law of cosine, the length of side CE is equal to 9.22 cm and the image of right-angled triangle BCE is shown in the image attached below.

How to calculate the length of CE?

In order to determine the length of side CE, we would apply the law of cosine because both side CE and side BC respectively represent the adjacent side and hypotenuse of right-angled triangle BCE.

cos(θ) = Adj/Hyp

Where:

Adj is the adjacent side of a right-angled triangle.Hyp is the hypotenuse of a right-angled triangle.θ is the angle.

Substituting the parameters into the formula, we have;

cos(θ) = CE/BC

cos(11.46) = CE/9.41

Cross-multiplying, we have:

CE = 9.41 × cos(11.46)

CE = 9.41 × 0.9801

CE = 9.22 cm.

By applying the law of cosine, the length of side CE is equal to 9.22 cm and the image of right-angled triangle BCE is shown in the image attached below.

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A group of men and women are asked if they prefer summer or winter. The resulting two-way frequency table is shown below. Use the data in the table to find each probability. a. P(woman) b. P(woman or summer) c. P(woman and summer) d. P(woman | summer)

women: summer 85 Winter 32
Men: summer 70 winter 51

Answers

The probability of women will be 0.49.

How to calculate the probability?

Based on the information given, the probability women will be:

Number of women = 85 + 32 = 117

Number of men = 70 + 51 = 121

Total = 117 + 121 = 238

The probability of women will be:

= 117/238

= 0.49

The probability of women or summer will be:

= 0.49 × 155/238

= 0.32.

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Find the gas mileage.
534 mi; 22 gal

Answers

Answer:

fvbafdbai

Step-by-step explanation:

gyhghg

Find the mode if any of the list of data 13, 13, 15, 15, 14, 15,13

Answers

Answer: 13 and 15
The mode is what appears most. So, 13 and 15 appear the most.

If f(n) = n²-n, then f(-4)

Answers

Answer:

20

Step-by-step explanation:

Just replace n by -4

[tex]\frak{Hi!}[/tex]

[tex]\orange\hspace{300pt}\above0.8[/tex]

                                We have the expression-:

                                [tex]\boldsymbol{\sf{f(n)=n^2-n}}[/tex], and we should evaluate that for

                               [tex]\boldsymbol{\sf{f(-4)}}[/tex]. To do that simply put in the value for x-:

                              [tex]\boldsymbol{\sf{f(-4)=(-4)^2-(-4)=16+4=20}}[/tex]

done!!

[tex]\orange\hspace{300pt}\above3[/tex]

slope of (1,10) (1,-8)
step by step?!

Answers

Answer:

undefined - you can't divide by 0!

Step-by-step explanation:

m = [tex]\frac{y2-y1}{x2-x1}[/tex]

m = [tex]\frac{10-(-8)}{1-1}[/tex]

m = 18/0

In order to find the slope, we have the formula is

The change of Y (Also Y minus each other)

----------------------------------------------------------------- Over (As fraction

The change of X (Also X minus each other)

Now the first point is (1,10) The Y is 10

                                               The X is 1

Now the Second Point is (1,-8) The Y is -8

                                                     The X is 1

So now we plug the numbers in

10-(-8)

---------                which is equal to 18/0

1-1  

A quick tip is that you CAN'T divide by zero

Therefore the answer is unidentified, but now you know how to solve for slopes

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At the end of the 3 months they calculated the percentage of awake time to the time they slept for the 4 hours and compared the percentages to infants that had music played versus infants that did not. None of the answer choices Experimental Survey Observational Study A group of researchers wanted to measure the impact of playing classical music at bedtime to infants . They choose 20 infants to play music from 6:30 7:30 pm at bedtime and 20 infants to not play music at all . For each day for 3 months they observed them for 4 hours and recorded exactly how long it took for them to fall asleep . At the end of the 3 months they calculated the percentage of awake time to the time they slept for the 4 hours and compared the percentages to infants that had music played versus infants that did not . None of the answer choices Experimental Survey Observational Study For every 5 minutes that Scarlett plays on the computer, she plays outside for 12 minutes. What is the ratio of minutes Scarlett plays on the computer to minutes she plays outside? Which of the following graphs shows thesolution set to 2x < 6 and 3x + 2 >-4? The amniotic fluid __________. Group of answer choices delivers food and oxygen to the developing organism helps keep the temperature of the prenatal world constant produces blood cells until the organs are mature enough to take over this function delivers nutrients and removes waste products