Ann's grade is the average of four scores: three chapter tests and a final
that counts as two chapter tests. She scored 72, 90, and 75 on the chapter
tests. What score does she need on the final to have a grade of at least 80?

Answers

Answer 1

Answer:

f = 81.5

Step-by-step explanation:

hello!

to be able to find the score she needs to have a final grade of at least 80, we use the following equation:

[tex]\frac{72+90+75+2f}{5}=80[/tex]

To get rid of the denominator, we multiply both sides of the equation by 5. Once we do, 5 gets canceled and 80 * 5 = 400. Therefore:

237 + 2f = 400.

Transpose, then simplify.

2f = 400 - 237

2f = 163

Divide both sides by 2 to isolate f:

f = 81.5


Related Questions

Milo has 5 rocks in his rock collection. He finds 40 rocks outside that he wants to put in his collection. If he places the rocks into boxes of 9, how many boxes of rocks will he have in his collection?​

Answers

Answer:

puto el que lo lea

Step-by-step explanation:

jajajaja lol no

Answer:

5

Step-by-step explanation:

40+5=45. 45/9=5

Evaluate
28.47% of 637.38cm
Give your answer rounded to 2 DP.
cm

Answers

Answer: 181.46 cm.

Step-by-step explanation: The real answer is 181.462086 cm but we can round that to 2 decimal places.

637.38 × 28.47/ 100

= 181.46

a Toyota Yaris goes 15 km on one litre of petrol how much petrol will it need to get to paga from bawku,120km​

Answers

Answer:

8 litre

Step-by-step explanation:

very simple 120÷15=8

hope it helps you

please mark me as brainlist

PLS HELP ITS URGENT!! ANSWER FOR POINTS

A random sample of 95 halogen light bulbs had a mean life of 531 hours with a standard
deviation of 33 hours. Construct a 90% confidence interval for the mean life of all light bulbs
of this type.
A) 525.4 < u <536.6
B) 515.3< u < 526.9
C) 527.2 < u <531.8
D) 523.8 < u < 529.5

Answers

a
and i have to write more people brainly wants me to

A survey was carried out on 40 travelers . 12 of them said they had traveled to Ghana and not to Cameroon. 8 said they had travelled to Cameroon and not Ghana. 10 said they had not traveled to either one of the countries. Draw a Venn diagram to find 1. The number of travelers that had gone to both countries before. 2. The number of travelers that had gone to Ghana before.


It’s urgent.

Answers

Answer:

10 ; 22

Step-by-step explanation:

Ghana = G

Cameroon = C

Cameron only = 8

Ghana only = 12

Total sampled = 40

Both Ghana and Cameroon = x

Not traveled to either = 10

Ghana only + Cameroon only + both Ghana and Cameroon + not traveled to either  = total sampled

12 + 8 + x + 10 = 40

30 + x = 40

x = 40 - 30

x = 10

Number that had gone to Ghana before :

Ghana only + both

12 + x

12 + 10

= 22

Answer:

Step-by-step explanation:

a circle with the diameter of 40 inches. what is the area?

Answers

Answer:

A= 1256

Step-by-step explanation:

The formula for area of a circle is [tex]A=\pi r^{2}[/tex]

1. Diameter is DOUBLE of radius, so the diameter must be divided by 2. 40/2 = 20.

2. Then, plug in the values into the area formula. A= 3.14[tex](20^{2})[/tex]

3. Solve. A= 1256. (Remember that 20 squared is 20x20)

I choose a card at random from a well-shuffled deck of 52 cards. There is a 1/4 probability that the card chosen is a spade, a 1/4 probability that the card is a heart, a 1/4 probability that the card is a diamond, and a 1/4 probability that the card is a club. Both spades and clubs are black cards, whereas hearts and diamonds are red. The events card is a heart and card is a club are

Answers

Answer:

The answer is "disjoint events".

Step-by-step explanation:

Please find the complete question in the attached file.

In this question, the Disjointed events were not connected, throughout this, Some other approach to disorganized events was its lack of common outcomes. When it can come at the same time, two events are exclusive to each other. A whole term, that implies excluding each other is disjoined. If had some are united, the chance of them both happening on one is 0, throughout this question, both heart and club can't be cards at the very same time.

a bottle of orange juice holds for 4/6 quarts of juice. a bottle of pineapple juice holds 2/3 quarts of juice. which bottle has more juice ​

Answers

Answer:

the orange juice has more ounces than the pineepple juice

Step-by-step explanation:

Jacob makes a scale drawing for a crate with a scale factor of 1:20. The dimensions of his scale drawing are 3 inches long by 2 inches wide. The builder creates a scale drawing of the crate with a scale factor of 1:10. What are the dimensions of the builder's scale drawing? O A. The length is 6 inches and the width is 4 inches. B. The length is 4 inches and the width is 6 inches. O C. The length is 1.5 inches and the width is 1 inch. D. The length is 1 inch and the width is 1.5 inches. SUBMIT​

Answers

Answer: 6 inches long and 4 inches wide

Step-by-step explanation: The dimensions of the actual crate are 20 times those on Jacob's drawing. The dimensions on the builder's drawing are 1/10 of those, so (1/10)(20) = 2 times the dimensions on Jacob's drawing.

hope this helps

Read the picture carefully...there can be more than ONE ANSWER

Answers

Answer:

D

Step-by-step explanation:

What is the height of a trapezoid whose bases have lengths of 11 units and 18 units and whose area is 87 square units?
its either
Question 1 options:

5 units,
3 units, or
6 units

Answers

Answer:

6 units is answer for it may be correct check it

Answer:

6

Step-by-step explanation:

Took the test on k12

1. Show that
(10a + 5)^2 = 100a(a + 1) + 25,
for every a real number. How is this formula explaining the rule we have, to square a number
which ends in 5, such as
25^2 = 625, 35^3 = 1225, 105^2 = 11025^2, etc. ?

Answers

Answer:

 (10a+5)²= 100 a( a+1) + 25

Step-by-step explanation:

Explanation:-

Given

     (10a+5)²

By using (a+b)² = a² +2ab +b²

                   = (10a)²+ 2 × 10a× 5 + (5)²

                   = 100a² + 100a + 25

                   = 100 a( a+1) + 25

x + 5 x < -2 4 – x2 -2 ​

Answers

x2  < −6x − 26

x < -x2/6 - 13/3

Linear equations -5(-5x+3)-5x+5=-50

Answers

Answer:

x=-30

Step-by-step explanation:

25x+15-5x+5=-50

20x+10=-50

20x+10-10=-50-10

2x=-60

x=60/2

x=-30

Hope it helps!

(I tired hard:))

what's 6 to the power of 900?​

Answers

Answer:

5400

Step-by-step explanation:

6x900 =5400 this is the correct answer

5400 is the correct answer

18 Which expression below is equivalent to -3x + 5(x + 2)? Circle the
correct answer.
A 2x + 2
B.
-x+ 2
C 2x + 10
D
- 8x + 10
Kaitlin chose A as the correct answer. How did she get that answer?

Answers

Answer:

C

Step-by-step explanation:

First, use the distributive property to open the parentheses:

-3x + 5x + 10

2x + 10

The correct answer is C

Kaitlin forgot to use the distributive property on both the x and 2.  

Hope this helps!

How many cups of yogurt would 5 people get if they equally shared 3/4 cups of yougurt

Answers

So the short answer is 3/20 cups. When you take 3/4 and turn it into a decimal, .75 then you can easily divide .75 by 5 and you get .15 or 3/20.

#3Elizabeth takes her younger siblings to the fair. She spends a total of
$40. She buys 3 entrance tickets for $8.00 each, and 8 bags of popcorn.
What is the price per bag of popcorn? (type just the whole number below

Answers

Take 40.00 divide by 8 to pay 5.00 a bag

Using the table below, determine how much you will receive in dividends for the year from Cisco Systems given that you currently hold 100 shares.

Answers

The amount you will receive in dividends for the year from Cisco Systems given that you currently hold 100 shares is:$15.

Dividend

Using this formula

Amount=Dividend (Div)×Number of shares

Where:

Dividend=0.15

Number of shares=100

Let plug in the formula

Amount=0.15×100

Amount=$15

Therefore the amount you will receive in dividends for the year from Cisco Systems given that you currently hold 100 shares is: $15.

Learn more about dividend here:https://brainly.com/question/2960815

#SPJ2

in a pack of 24 balloons, 3/4 are blue or green, how many of the balloons are blue or green?

Answers

Answer:

3 my answer

Step-by-step explanation:

24 divide 8-3

Plz help with the problem in the picture. Thanks

Answers

x = 3.4

They call me human calf

Answer:  x(0,0)y(0,0) tell me more I don't really understand it

x=3.4

Step-by-step explanation:

I NEED HELP PLSSSSSSS​

Answers

Variable, constant, hole

Point M is located at (7,1).

What is located 5 units from point M?

Choose 1 answer:

(Choice A)

Point A

(Choice B)

Point B

(Choice C)

Point C

(Choice D)

Origin

Answers

I think it is possibly point b

I really need help please answer would help a lot

Answers

Answer:

z=13

Step-by-step explanation:

The sum of the two angles is 90 degrees

2z+5   + 5z-6  = 90

Combine like terms

7z-1 = 90

Add 1 to each side

7z-1+1 = 90+1

7z = 91

Divide each side by 7

7z/7 = 91/7

z =13

Answer:

5

Step-by-step explanation:

i had my teacher help me with I am on a one on one zoom

3
What is the remainder when 2,308 is divided by
nine? Give your answer as a fraction.

Answers

Answer:

254 R 6

Step-by-step explanation:

Answer:

256 7/16

Step-by-step explanation:

2308/9 = 256 7/16

The function h is defined by h(x)=x^2 +2.
Find h(3y).

Answers

The function h is defined by h(x)=x^2 +2.
Find h(3y).
The answer is 2+9 _

Directions: Find each product. Show your solution. .
1) 0.35 x 24 =
2) 0.59 x 29 =
3) 2.45 x 5 =
4) 0.84 x 3 =
5) 0.45 ~ 63=
6) 3.54 x 0.59=
7) 5.28 x 1.18 =
8) 4.37 x 0.58 =
9) 7,05 * 0.52 =
10) 2.36 x 1.28=
[tex]0.35 \times 24 = [/tex]

Answers

Answer:

.

1) 0.35 x 24 =8.4

2) 0.59 x 29 =17.11

3) 2.45 x 5 =12.25

4) 0.84 x 3 =2.52

5) 0.45 ×63=28.35

6) 3.54 x 0.59=2.0886

7) 5.28 x 1.18 =6.2304

8) 4.37 x 0.58 =2.5346

9) 7.05 * 0.52 =3.666

10) 2.36 x 1.28=3.0208

[tex]0.35 \times 24 = [/tex]=8.4

Answer:

1) 8.4

2) 17.11

3) 12.25

4) 2.52

5) 28.35 (if numbers are multiplied)

6) 2.0886

7) 6.2304

8) 2.5346

9) 3.666

10) 3.0208


what is 6% of $4100.

Answers

Answer:

$246

Step-by-step explanation:

6 percent of $4100 is $246

234.2 in expanded form

Answers

Answer:

Expanded Notation Form:

 

234.2

=

 

200

 

+

30

 

+

4

 

+

 

0.2

Expanded Factors Form:

 

 

234.2

=

 

2 ×

100

 

+

3 ×

10

 

+

4 ×

1

 

+

2 ×

 

0.1

Expanded Exponential Form:

 

234.2 =

2 × 102

+

3 × 101

+

4 × 100

+

2 × 10-1

Word Form:

234.2 =

two hundred thirty-four and two tenths

Complementary angles

Find the value of x in each right angle.

I cannot get this wrong

Answers

Answer:

The value of x = 28°

Step-by-step explanation:

Explanation:-

Complementary angles:-

Two angles are called Complementary angles when their measures add to 90 degrees

         ∠A + ∠B = 90°

     (x+40)° + 22° = 90°

        x + 62° = 90°

        x = 90 - 62

        x = 28°

Other Questions
What is UW? For brainliest Which is the best definition of a major scale?A. Western musicB. higher octavesC. double notesD. most commonly used write an equation of the line perpendicular to the given line that contains P in point slope form? P (4,8) y=4x-7 Which of the following shows the equation after both sides have been distributed-4(x - 2) = 5(3x 8)A. 4x-8=15x-40B. 4x-6=15x-3C. 4x+8=15x-40D. 4x+8=15x+40 At a skateboard shop:a) The price tag on a shirt says $12.58. Sales tax is 7.5% of the price. How much will you pay for the shirt? Show your workb) The store buys a helmet for $19.00 and sells it for $31.50. What percentage was the markup? Show your workc) The shop pays workers $14.25 per hour, plus 5.5% commission. If someone works 18 hours and sells $250 worth of merchandise, what is the total amount of their paycheck for this pay period? Show your work Simplify the following expression. (52x + 61y) + (-6x + 47y) Two students are on a balcony a distance h above the street. One student throws a ball vertically downward at a speed vi; at the same time, the other student throws a ball vertically upward at the same speed. Answer the following symbolically in terms of vi, g, h, and t. (Take upward to be the positive direction.)(a) What is the time interval between when the first ball strikes the ground and the second ball strikes the ground??t = ______(b) Find the velocity of each ball as it strikes the ground.For the ball thrown upward vf = ______For the ball thrown downward vf = ______(c) How far apart are the balls at a time t after they are thrown and before they strike the ground?d = _______ What if cellular respiration did not occur The order of the genes on a plant chromosome is A, B, C, where A and B are located 10 cM apart and B and C are located 3 cM apart. What is the probability that the trihybrid ABC/abc will produce any kind of recombinant gamete In the diagram below, the horizontal lines are parallel. Find the value of x does the table represent a proportional relationship?x 3 6 9 12y 7 13 19 25 PLZ help me i need the answer asap 7th grade math In guinea pigs, white coat color is determined by the allele W. Black coat color is controlled by the allele w. Cross a white & black spotted pig with a black pig. W = white w = blackWhat percentage of the offspring will be black? PLEASE HELP! WILL MARK BRAINLIEST IF U ANSWER CORRECTLY! IF WRONG U WONT GET IT b. Why were Bob and Millie looking forward to the party? Escribir un numero entero que represente cada una de las expresiones a. Un globo aerostatico 200 m sobre el nivel del mar. b. 500 aos antes de cristo. c. Una deuda de L. 600.00 d. 7 minutos de retraso e. 2 grados bajo cero f. El delfin salto 4 metros sobre el nivel del mar. Which expressions are equivalent to 3(6+b)-(2b+1) For the equation: 4x+y=10 what does x equal if y=-6? SOMEONE PLEASE HELP ME AND ANSWER THIS QUESTION CORRECTLY I WILL MAKE YOU THE BRAINLIEST, GIVE YOU A GOOD RATE, PLEASE ASWER THIS ASAPPPPPPPPP!!!!!!!!!!! I NEED HELP ASAPPPPPPPPPPP!!!!!!!!!! The theme of a story is theA. main character.B message about life that the author expresses.C the sequence of events.D short summary of what the story is about.