Mira got a 71 and an 83 on her first two tests. If she wants her average to be exactly an 80, what would she need to get on her third test?

Answers

Answer 1

Answer:86%

Step-by-step explanation:

71+83+86=240

240/3=80% average


Related Questions

Each factory at a candy company has 199 workers. There are 13 factories.
How many workers are employed at the candy company? pls help me on this

Answers

Answer:

2587

Step-by-step explanation:

so 199 workers per factory with 13 factories it is 199 times 13 which equals 2587

199 workers x 13 factory = 2,587 workers

Answer : 2,587 workers

How many degrees is StartFraction 15 Over 16 EndFraction pi radians? 84.375° 93.75° 168.75° 337.5°

Answers

Answer:

x = 168.75°

Step-by-step explanation:

Angle Measurement Units

To convert from different units for angle measurements, we have to recall that:

180 degrees = π radians

If we are given the angle in degrees, multiply by π/180 to convert it to radians.

If the angle is given in radians, multiply by 180/π to convert to degrees.

We are given the angle:

[tex]\displaystyle x=\frac{15}{16}\pi[/tex]

Multiplying by 180/π:

[tex]\displaystyle x=\frac{15}{16}\pi\cdot \frac{180}{\pi}[/tex]

Simplifying:

[tex]\displaystyle x=\frac{15*180}{16}[/tex]

x = 168.75°

Answer:

C.  168.75 degrees

Step-by-step explanation:

Which of the following best describes the graph above?

A. Function only
B. Relation only
C. Both relation and function
D. Neither relation nor a function

Answers

Answer: C

Step-by-step explanation:

We know that a relation is any set of ordered pairs, but a function is when there is only one y value for x value.

So, basically, if a graph is a function, it is a relation as well.

Let’s check if this is a function.

We can use the vertical line test- if we draw a vertical line through any point on the graph and it only intersects one point, it is a function

In our case, it passes the vertical line test.

Therefore, it is both a function and a relation, which corresponds to letter C.

Hope this helps! :)

Plz I need help with this ASAP

Answers

Answer:

$134 is the ans

Step-by-step explanation:

Can someone please help me with this problem?

Answers

Answer:

[tex]sin(\theta)=\frac{40}{41} \\cos(\theta)=\frac{9}{41} \\tan(\theta)=\frac{40}{9}\\csc(\theta)=\frac{41}{40} \\sec(\theta)=\frac{41}{9} \\cot(\theta)=\frac{9}{40}[/tex]

Step-by-step explanation:

Notice we can use the Pythagorean theorem to find the measure of the unknown side via:

[tex]123^2=120^2+x^2\\x^2=729\\x=\sqrt{729} \\x=27[/tex]

and now, knowing all the sides, we can find all te trigonometric functions of the angle  [tex]\theta[/tex]:

[tex]sin(\theta)=\frac{opp}{hyp} = \frac{120}{123} =\frac{40}{41} \\cos(\theta)=\frac{adj}{hyp} = \frac{27}{123} =\frac{9}{41} \\tan(\theta)=\frac{opp}{adj} = \frac{120}{27} =\frac{40}{9}\\csc(\theta)=\frac{41}{40} \\sec(\theta)=\frac{41}{9} \\cot(\theta)=\frac{9}{40}[/tex]

Which CANNOT be used to prove that lines in and n are parallel?
A. 2 = 4
B. 4 is supplementary to 7.
C. 24 is supplementary to 5.
D. 1 = 5


Answers

C.24 is supplementary to 7

A=14
B=7
C=3.5
D=7 square root of 2

Answers

Answer:

7

Step-by-step explanation:

Which equation has a slope of and goes through the point (-3.4)?​

Answers

Answer:

Find the Equation of a Line Given That You Know a Point on the Line And Its Slope. The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.

Which property is not used to simplify the following expression?

Answers

Answer:

The last one of commutative property of addition since there is no swapping of numbers related with addition.  

20) Jermaine's goal is to eat 25 grams of protein each day. If Jermair meets his goal, how many grams of protein will he have eaten after 30 days​

Answers

Answer:750 grams

Step-by-step explanation:

25*30=250 grams after 30 days

You are rolling one die. Let event A = rolling a six and let event B = rolling a number less than
four. What is the probability of A or B?

Answers

Answer:

2/3

Step-by-step explanation:

A = rolling a six

B = rolling a number less than 4

Probability of A or B

P(A) or P(B) = P(A) + P(B) - P(AnB)

Probability = (number of required outcome / Total possible outcomes)

P(A) = 1 / 6

P(B) :

Required outcomes = (3, 2, 1) = 3

P(B) = 3/6 = 1/2

P(AnB) = A={6} ; B = {1,2,3} ; AnB = {}

P(AnB) = 0

Hence,

P(A) or P(B) = 1/6 + 1/2 - 0

= (1 + 3) / 6

= 4/ 6

= 2/3

Is 1/3 greater than 0.4

Answers

Answer:

No because 1/3 in decimal form is 0.333333 which is less than 0.4

Step-by-step explanation:

Help please: Select all statements that are true about the linear equation. y = 1/2x - 2​

Answers

The answers are the first and third statement!

CAN SOMEONE HELP??! VERY URGENT

Answers

85 = 10x+15
70 = 10x
x = 7

180-85 = 95 = z

2x^2 + 3x = -5
Trying to find the solution,
Thank you.

Answers

Answer:

x = 1/2 or -2

Step-by-step explanation:

2x^2 +3x -2 = 0

(2x - 1) ( x + 2 ) = 0

(2x-1) = 0 ______ x = 1/2

or

(x +2 ) = 0 ______ x = -2

A system of equations is graphed on the grid.

Which system of equations does the graph represent?

Answers

Answer:

y = x + 4

y = -2x - 4

Step-by-step explanation:

Since equation of the line having slope 'm' and y-intercept 'b' is given by,

y = mx + b

Slope of a line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is,

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

Slope of line passing through (1, 5) and (-1, 3),

m = [tex]\frac{5-3}{1+1}[/tex] = 1

y-intercept 'b' = 4

Therefore, equation of the line is,

y = 1.x + 4

y = x + 4

Now slope of another line passing through (-4, 4) and (-1, -2) will be,

m = [tex]\frac{4+2}{-4+1}[/tex]

m = -2

y-intercept 'b' of this line = -4

Equation of the other line,

y = (-2)x - 4

y = -2x - 4

Therefore, system of equations is,

y = x + 4

y = -2x - 4

The system of equations is given by: y = x + 4 and y = -2x - 4

A linear equation is given by:

y = mx + b;

where y, x are variables, m is the rate of change and b is the y intercept.

The first line passes through point (-1, 3) and (1, 5) hence:

[tex]y- y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-3=\frac{5-3}{1-(-1)} (x-(-1))\\\\y=x+4[/tex]

The second line passes through point (-4, 4) and (-1, -2) hence:

[tex]y- y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-4=\frac{-2-4}{-1-(-4)} (x-(-4))\\\\y=-2x-4[/tex]

The system of equations is given by: y = x + 4 and y = -2x - 4

Find out more at: https://brainly.com/question/13911928

x-1
8
The slope of QR is *4 and the slope of ST is
3
If QR I ST, determine and state the value of x.

Answers

Answer:

E. -1/2

Step-by-step explanation:

When two lines are said to be perpendicular to each other, the slope of one is the negative reciprocal of the other.

Therefore, given that [tex] \frac{x - 1}{4} [/tex] is the slope of [tex] \overline{QR} [/tex], and ⁸/3 is the slope of [tex] \overline{ST} [/tex], if both lines are perpendicular, it means that the slope of [tex] \overline{ST} [/tex] would be the negative reciprocal of the slope of [tex] \overline{QR} [/tex].

Therefore:

[tex] \frac{x - 1}{4} = -\frac{3}{8} [/tex]

Cross multiply

[tex] (x - 1)(8) = (-3)(4) [/tex]

[tex] 8x - 8 = -12 [/tex]

Add 8 to both sides

[tex] 8x = -12 + 8 [/tex]

[tex] 8x = -4 [/tex]

Divide both sides by 8

[tex] x = \frac{-4}{8} [/tex]

[tex] x = \frac{-1}{2} [/tex]

Re write the quadratic function in standard form


y=6(x-3)^2+4

Answers

Answer:

y= 6[tex]x^{2}[/tex] - 36x + 58

Step-by-step explanation:

6 ( [tex]x^{2}[/tex] - 6x +9) + 4

6[tex]x^{2}[/tex] - 36x + 54 + 4

6[tex]x^{2}[/tex] - 36x + 58

2. Simplify ((–3)2)3

Answers

Answer:

-18

Step-by-step explanation:

((-3)2)3

First, you multiply -3 and 2 which equals  -6

-3·2=-6

Then, you multiply -6 and 3 which equals  -18

-6·3=-18

Find the slope plz!!

Answers

Answer:

1/4 should be the answer bc it goes up one and over 4. which goes back to the rise over run thing.

Answer:

slope is 1/4

Step-by-step explanation:

[tex]\frac{4-3}{6-2} =\frac{1}{4}[/tex]

y = 8(x2 + 4x + ) + 17 +

Answers

Answer:

8 (x^2 + 4 x + 4) + 17 + - 32

Step-by-step explanation:

round 9647 to the nearest thousand. enter your answer in the box below.​

Answers

Answer:

10,000 because the 6 is 5 or more which makes it round up a thousand.

Step-by-step explanation:

10,000. since 647 is greater than 500, round up. hope this helps, please mark brainliest and have a great day

Overall, divorce rates have declined in the last 20 years, but among middle-aged couples, the rates are rising. Do an internet search to find what current statistics are available for different groups of individuals, then describe three factors that contribute to contemporary rises in middle-aged divorce rates.

Answers

Answer:

The current divorce rate is about 7% based on the survey.

Step-by-step explanation:

The divorces occur when two person fails to accept each other as a life partner. In the country the divorce rate is about 7% of which mostly couples are at the age of 20 - 25. The people of age 30 plus are less likely to get divorced as they have matured mind sets which accepts each other differences and tries to adjust the situation.

Divorce describes a form of marital separation which is usually undertaken by a court. It occurs when one or both partners decide to quit being married.

The middle age divorce rate continues to rise, as it is being reported in various channels. Currently the middle age divorce rate stands at about 17% per 1000 married person.

The causes of rising divorce rates among middle - aged may include :

Rising cases of infidelity as spouses continue to find it difficult to be committed in marrige. Sacrifices which helps foster lasting partnership can no longer be undertaken.

Also, the need to be independent as taken over at this time, as partners begin to see marriage as a bond age which prevents or curtails them from what they would love to indulge in.

Lastly, some now see divorce as norm due to the social influence it has transmitted across to various individuals. Now, so many choose to divorce at any minor challenge marriage brings.

Learn more :https://brainly.com/question/24501933?referrer=searchResults

Solve for x.



................

Answers

The 21x-8 and the 13x-4 are they angles or are they line segments?

Mrs. Farquharson drove through a total of 36 intersections on her way home from work last week. At 4 of every 16 intersections, Mrs. Farquharson had to stop for a red light before she could drive through. At how many intersections did Mrs. Farquharson have to stop for a red light?

Answers

She had to stop at 9

Find the Unit Rate: If 12 50.7 FI. Oz. bottles cost $84 how much does one bottle cost? Find the init Rate.​

Answers

Your statement is a little ambiguous due to type mistake, so I am assuming you meant to say:

'if 12 fl. oz. bottles cost $84 how much does one bottle cost? Find the Unit Rate.

so I am solving based on '12 fl. oz.' bottles costing $84.

Answer:

unit rate = 7 $ per fl. oz.

Therefore, the 7 $ per fl. oz is the unit rate.

Step-by-step explanation:

We know that a unit rate is basically a fraction (also called ratio) between two different units with a denominator of 1.

For example, kilometers per hour, and heartbeats per minute, etc.

Here, I assume, by 'unit rate' means you mean to say 'cost per fl. oz.'

Given

The cost of 12 fl. oz. bottlers = cost $84

The cost of 1 bottle cost = $84 ÷ 12 oz = 7 $ per fl. oz.

Hence,

unit rate = 7 $ per fl. oz.

Therefore, the 7 $ per fl. oz is the unit rate.

Which is the equation of a line with the same y-intercept as the line with the equation 5x -4y =12!

Answers

Answer: the answer is d

Step-by-step explanation:

Simlplify the expression. 2.3h(6-k)

Answers

Answer:

13.8h-2.3hk

Step-by-step explanation:

need mad help bro, this is so confusing

Answers

im doing the same thing but add some numbers sorry bro im failing

A recipe for macaroni and cheese
calls for 2 cups of cheese; this makes
7 servings. How many cups will you
need for 28 servings?

Answers

8. Ifjdjshsbnslsjsbdbbs

Answer:

4 cups

Step-by-step explanation:

No explanation

Other Questions
True or False? 6 ab and 4 ba are like terms What is something that you are grateful for? Explain your answer.(other then family) What is the primary purpose of this blog?to inform readers about seeing-eye dogsto entertain readers with stories about Lexieto persuade readers to support service dogsto convince readers to adopt seeing-eye dogs 2) Find the perimeter of the followingpolygon.7 in.10 in.12 in.15 in. Which function is graphed on the coordinate plane below? Which graph represents the equation 6x5y=10 ? A image 1ab24067a1a445c6b2cc4633bfedfbb0 B image 28e91cd406af4c89bbd5cef1ec880a48 C image cfe6c7f17af74557ac6084f98e5bf5e0 D image 6fe8450f191547f885106542b28826f1 From 15 degrees to 21 degrees 18. During a test, Jeff succumbed to temptation and copied several answers from a nearby student's paper. He felt very uncomfortable about having done this, until he convinced himself that copying answers is not wrong if classmates are careless enough to expose their test sheets. Which theory best explains why Jeff adopted this new attitude? Can matter because arranged?? What is the frequency of a photon whose energy is 5.4 10-19 J? (h = 6.626 10-34 Js) What should be a concern as a weldment becomes larger as more parts are added? Lot 1 lies where two roads meet at a 79 angle. Lot 2 lies where two roads meet at a 65 angle. Lot 3 lies where two roads meet at a 36 angle. All lots have two sides measuring 20 feet as shown. A triangle is shown. At each of the points of the triangle, a line representing a fence is drawn to form a smaller triangle at each point. All other sides of the smaller triangles are 20 feet. Lot 1 lies where the angle is 79 degrees. Lot 2 lies where the angle is 65 degrees. Lot 3 lies where the angle is 36 degrees. A fence runs along the back wall of each property, as shown in the diagram. Which lot has the longest fence along the back wall? Which lot has the shortest fence along the back wall? 3 RapididentityFind the value of x.(3x + 1)(x + 19)s WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST! Plzz Due Now!!!Part A: Jake rented a kayak at $26 for 3 hours. If he rents the same kayak for 5 hours, he has to pay a total rent of $42. Write an equation in the standard form to represent the total rent (y) that Jake has to pay for renting the kayak for x hours.Part B: Write the equation obtained in Part A using function notation.Part C: Describe the steps to graph the equation obtained above on the coordinate axes. Mention the labels on the axes and the intervals. Change the following assertive into interrogative :Q1: It was a great sightQ 2: No one can tolerate thisQ 3: Nobody salutes the setting Sun.Q 4: Gulliver could hear his watch ticking in his pocket.Q 5: It is useless to cry over spilled milk.Q 6: The beauty of nature is beyond descriptions.Q 7: Everybody has heard of DarwinQ 8: He has his dinner at seven every evening.Q 9: I told him to practice regularlyQ 10: Virtue has its own reward.( guys i really need the ans ) Chlydmia is easily treatable with antibiotics if detected early Read the following prompt and type your response in the space provided.You will write two paragraphs about visualization, an important readingcomprehension strategy.In the first paragraph, explain what visualization is and how to do it. Then selecteither "Stopping by Woods on a Snowy Evening" or "Sympathy" and explain how youused the strategy of visualization to help you understand the poem. Cite specificexamples from the text of the poem to support your answer.In the second paragraph, explain how using this strategy deepened yourunderstanding of the poem itself, the characters or speakers of the poem, or thepoem's theme. Alexia spent 3 minutes working on each of her math problems and 4 minutes on each of her science problems. Her homework took her more than 60 minutes to complete. The boundary line for the inequality 3x + 4y > 60 is shown. A graph shows number of math problems on the x-axis, from 0 to 20, and number of science problems on the y-axis, from 0 to 16. A dashed straight line has a negative slope and goes through (4, 12) and (12, 6). Which statement could be true in this situation? Alexia completed 8 math problems and 9 science problems. Alexia completed 4 math problems and 6 science problems. Alexia completed 20 math problems and 10 science problems. Alexia completed no math problems and 15 science problems. Do I have any grammar mistakes?