Ned took a test with 20 questions. He lost 5 points for each of the 8 questions he got wrong and earned an additional 11 points for answering a bonus question correctly. How many points did Ned receive or lose overall?

Answers

Answer 1

Answer:

He lost 29 points

Step-by-step explanation:

He lost 29 points. He lost 5 points for each of the 8 questions so -5 x 8 = -40 points, then add 11 = -29

Answer 2

Answer:

He would end up with 71 points

Step-by-step explanation:

You start with 100 hundred points then you have to multiply 8 times 5 which you get 40 so then you have to  subtract 100 -40 to get 60 then you add the extra 11 points andyou get 71 points


Related Questions

Choose a system of equations with the same solution as the following system:

6x + 2y = −6
3x − 4y = −18

a) 8x + 4y = −4
17x + 2y = −28

b)12x + 4y = 12
21x + 2y = −36

c) 6x + 8y = −36
15x + 6y = −60

d)6x + y = 15
15x − y = −9

Answers

Answer: A. 8x + 4y = -4

                    17x + 2y = -28

Step-by-step explanation:

What is the most logical explanation for why kilo is a more important prefix to remember than ""tera"" (the metric prefix for 1 trillion)?

Answers

Quantities of thousands are more common than quantities of trillions. hope this helps!

We want to compare two prefixes, kilo and tera, and see why one seems to be more important than the other.

The prefix "kilo" is used for thousands, while the prefix "tera" is used for trillions.

Now if you go to your day-to-day life, you will see that the thousands appear a lot more than the trillions.

For example, is more common to walk one or two kilometers than one terameter.

Or also is more common to buy a kilogram of potatoes than one teragram of potatoes.

This is mainly why kilo is more important (actually is more used, I wouldn't say that is more important) than tera.

If you want to learn more you can read:

https://brainly.com/question/5470764

When x is 4, y is 12. If y varies directly as x, which equation relates x and y?

Answers

Answer:

12/4

Step-by-step explanation:

y varies directly with x basically means y÷x so you will have to divide the variables together. In other words, it basically means y varies proportionally as x

so in this case, it would be 12 divided by 4 resembling that y varies directly as x


Find the slope using the formula.
(-2, -9) and (-6, -6)

Answers

m = y1 - y2 / x1 - x2
m= -9 + 6 / -2 + 6
m= -3 / 4

Find the probability of guessing correctly at least 6 of the 10 answers on a true-false examination.

Answers

Answer:

24%

i think

Step-by-step explanation:

Estimate the area of the inregular shape. Explain your method and show your work.
Please help 100 points and brainliest

Answers

Estimation : 27.5 square units

From the above coordinates: a = 7 length units, b = 4 length units and h = 5 length units. Therefore, approximate area = [(7+ 4)/2]*5 = 27.5 square units.

Hope it helps.

can u pls help me with this question ​

Answers

The correct answer is a

at 4 pm charlie realizes he has half an hour to get to his grandmother's house for dinner? if his grandmother lives 40 miles away, how fast will charlie have to drive to get there on time?

Answers

Answer:

10 minutes

Step-by-step explanation:

Speed = distance ÷ time, so 40 ÷ 4 = 10

hope this helps :)

TRUE OR FALSE:
If 2x−5 = 13, then x=4

Answers

Answer:

False

Step-by-step explanation:

Add 5 to isolate varible to get 2x=18. Dived by 2 to get x=9.

Can you please help me solve for the area

Answers

Answer:

area is equal to 198 cm^2

Step-by-step explanation:

the height h of the left triangle can be obtained by

Pytagoras theorem:

[tex]5^2+h^2=13^2\\25+h^2=169\\h^2=169-25\\h^2=144\\h=\sqrt{144} \\h=12[/tex]

the, the area of the left triangle is

[tex]A_1=\frac{5*12}{2} \\A_1=5*6\\A_1=30[/tex]

the area of the right triangle is

[tex]A_2=\frac{2*12}{2} \\A_2=12[/tex]

and the area of the rectangle in the middle is

[tex]A_3=(13)(12)\\A_3=156[/tex]

Por tanto, el area total sera

[tex]A=A_1+A_2+A_3\\A=30+12+156\\A=198[/tex]

Leanne runs on the treadmill and rides the exercise bike at the gym to stay in shape. She burns 15 calories per minute on the treadmill and 9 calories per minute on the bike. She wants to ride the bike 2.5 times as long as she runs on the treadmill and burn a total of 580 calories. The system of equations below can be used to find the number of minutes, t, she should run on the treadmill and the number of minutes, b, she should ride the bike.


According to this system of equations, can Leanne meet both her goals?

A.
Yes, she can run on the treadmill for 15 minutes 28 seconds.

B.
No, she cannot ride the exercise bike a negative number of minutes.

C.
Yes, she can ride the exercise bike for 15 minutes 28 seconds.

D.
No, she cannot run on the treadmill for a fractional number of minutes.

Answers

Answer: C

Step-by-step explanation:

step 1: I

step 2: just

step 3: took

step 4: it

final answer: i took the test and got a 100 so its definitely C.

<3

In this picture B and F are
midpoints.
x=[ ? ]

Answers

Answer: x = 10

see in the picture, ΔACE has:

+) BF//AE

+) B and F are  midpoints.

=> BF is the median line of the triangle ACE

=> BF = 1/2. AE

=> AE = 2BF

⇔ 5x - 4 = 2.23 = 46

⇔ 5x = 46 + 4 = 50

⇔ x = 50/5 = 10

Step-by-step explanation:

during a sale, an appliance that costs $275.00 is being sold at a discount for $220.00. which equation can be used to find the size of discount, d during the sale?​

Answers

Answer:

20% discount

Step-by-step explanation:

275 - 220 = 55

55/275 = 0.2

The discount is 20%

Answer:

20% discount

Step-by-step explanation:

275 - 220 = 55

55/275 = 0.2

0.2(100)=20

There is a 20% discount.

A soup recipe makes 6 cups. How many people does it serve if each serving is 3/4 of a cup?
6
10
8
4​

Answers

8
6/.75 =8
I hope this helps!!!

Answer: 8

please see below for work!

Little help here guy

Calculate volume

Answers

Answer/Step-by-step explanation:

Problem 1:

Radius = 4.8 cm

Height = 6 cm

Volume of cylinder (V) = πr²h

Plug in the values

V = π*4.8²*6 = 434.29 cm³

Problem 2:

Length of pipe = 26 cm

Internal diameter = 6.5 cm

Thickness = 0.5 cm

Pipe volume (V) = π(R² - r²)h

where,

R = Outer radius = ½(6.5) + 0.5 = 3.75 cm

r = inner radius = ½(6.5) = 3.25 cm

h = height = 26 cm

Plug in the values

V = π(3.75² - 3.25²)*26 = 285.88 cm³

Problem 3:

Volume the cylindrical paint can hold = 2.5 litres = 2.5*1000 = 2,500 cm³

Height (h) = 16 cm

Radius (r) = ??

Volume of cylindrical can (V) = πr²h

Plug in the values

2,500 = π × r² × 16

2,500 = 16π × r²

Divide both sides by 16π

2500/16π = r²

49.7 = r²

Take the square root of both sides

√49.7 = r

r = 7.05 cm (nearest hundredth)

Problem 4:

The section of the guttering is ½ of a cylinder

Diameter = 14 cm = 0.14 m

Radius = ½(0.14) = 0.07 m

Volume = 20 litres = 0.02 m³

Length (h) = ??

Volume of the guttering = ½(volume of cylinder) = ½(πr²h)

Plug in the values

0.02 = ½(π*0.07²*h)

0.02*2 = 0.0049π*h

0.04 = 0.0049π*h

Divide both sides by 0.0049π

0.04/0.0049π = h

2.6 = h (nearest tenth)

Length = 2.6 m

Problem 5:

Height of the smaller cylinder (h) = 13 cm

Radius of the smaller cylinder (r) = ½(7) = 3.5 cm

Volume of smaller cylinder = πr²h = π × 3.5² × 13 = 500.3 cm³

Volume of larger cylinder filled to a height of 5 cm = Volume of smaller cylinder

Thus:

Volume of cylinder filled to height of 5cm = 500.3 cm³

height (h) = 5

radius (r) = ???

Therefore,

500.3 = π × r² × 5

500.3 = 5π × r²

500.3/5π = r²

31.9 = r²

√31.9 = r

r = 5.6 cm (nearest tenth)

Which number has a value between -8.423 and -8.395?

A. -8.1
B. -8.75
C. - 8 1/2
D. 8 2/5

Answers

Answer:

Step-by-step explanation:

Jmeu eimejrimr

The number between -8.423 and -8.395 will be - 8 2/5.

What is Fraction?

A fraction is a part of whole number, and a way to split up a number into equal parts.

Given that;

Two numbers are,

⇒ - 8.423 and - 8.395

Now,

Since, Two numbers are,

⇒ - 8.423 and - 8.395

Clearly, - 8.1 is greater than - 8.423 and - 8.395.

Hence, It is not between the numbers - 8.423 and - 8.395.

Clearly, - 8.75 is less than - 8.423 and - 8.395.

Hence, It is not between the numbers - 8.423 and - 8.395.

Clearly, - 8 1/2 is less than - 8.423 and - 8.395.

Hence, It is not between the numbers  - 8.423 and - 8.395.

Clearly, - 8 2/5 = - 8.4 is in between - 8.423 and - 8.395.

Hence, It is between the numbers  - 8.423 and - 8.395.

Thus, The number between -8.423 and -8.395 will be - 8 2/5.

Learn more about the fraction visit:

https://brainly.com/question/28897348

#SPJ6

are the triangles congruent if so state how they are congruent.

Answers

Answer:

Step-by-step explanation:

They are congruent.

SSS

Which product matches the shading on the grids? ​

Answers

Answer:

I believe it is D. not sure tho

Convert: 7 pt 1 c = [] c​

Answers

Answer:

Pint value is 1 and cup value is 1 pt = 2 c. Sorry if I am wrong!

Step-by-step explanation:

3/8 of the homes have a red door how many homes have a red door​

Answers

Answer:

three out of the eight homes have red doors. so 3 homes have red doors

Step-by-step explanation:

Solve the equation 4(2x + 1) = 6x - 12
x=-13/2
x = -8
x = 8
X=11/2

Answers

4(2x+1)=6x-12

4(2x)+4(1)=6x-12

8x+4=6x-12

2x+4=-12

2x=-16

2x/2=-16/2

x=-8

The recently released iPhone XS Max comes in three different storage sizes: 64GB, 256GB, and 512GB. The price of the 64GB phone is $1,099. If prices were proportional to the phone's storage size, how much would the 256GB phone and the 512GB phone cost
Any help please

Answers

Answer:

iPhone XS Max: $1,249/256GB,

$1,449/512GB

Step-by-step explanation:

Got it !!!

Part D
You now have an equation to model the finances of the car wash. What is the value of the profit when the baseball team washes 0 cars? What point represents the value? What does the y-value of this point mean in terms of the problem?​

Answers

Answer:

The equation for the profit made on the car wash is y = 5x – 75. Here, y is the profit made and x is the number of cars washed. So if the team washes 0 cars, x will be 0.

y = 5(0) – 75

y = -75

The point that represents this is (0, -75). Here, the value of the y-coordinate of the point is -75. Since it has a negative sign, it means that instead of making a profit, the team suffers a loss. So, if the baseball team washed no cars, it would lose $75.

Step-by-step explanation:

The difference between a number y and 9 is -34. What is the number?

Answers

Answer:

y-9=34

y=34+9

y= 43

Step-by-step explanation:

please Mark as brainliest

Answer:

y= -25 because if you add -25 to 9 it gives you -34

What is the first step needed to solve 2 over 5 multiplied by x minus 6 equals negative 16?

Subtract 16 from both sides
Add 6 to both sides
Divide both sides by 5
Multiply both sides by 2

Answers

Answer:

The correct answer is D.

Step-by-step explanation:

If f(x)=8x+16, then find f-1 (x)

Answers

if u mean f(-1)= 8x+16, then the answers is 8

You have $20 to spend on lip balm and hand sanitizer. The equation $1.5x+2.5y=20$ represents this situation, where x is tubes of lip balm and y is bottles of hand sanitizer. How many bottles of hand sanitizer can you buy when you do not buy any tubes of lip balm?

Answers

Answer:

13

Step-by-step explanation:

20÷1.5 since there is not X

Jessie is playing a game and bets $5 on the come out roll. If a 7 or 11 is rolled, she wins $5. This happens with a probability of 29. If a 2,3,or12 is rolled, she loses her $5. This has a probability of 19. If any other number is rolled, she does not win or lose, and the game continues. Find the expected value for Jessie on the come out roll.

Answers

Answer:

.

Step-by-step explanation:

We want to find the expected value for Jessie on the come out roll.

The expected value is EV = $0.50

We know that for an event with outcomes {x₁, x₂, ..., xₙ}, each with probability {p₁, p₂, ..., pₙ}, the expected value is given by:

EV = x₁*p₁ + x₂*p₂ + ... + xₙ*pₙ

Where the probabilities are written in decimal form.

We have the outcomes:

x₁ = winning $5.

p₁ = 0.29

x₂ = losing $5

p₂ = 0.19

x₃ = not win nor lose

p₃ = 1 - 0.19 - 0.29 = 0.52

Then the expected value is:

EV = $5*0.29 - $5*0.19 + $0*0.52 = $0.50

If you want to learn more, you can read:

https://brainly.com/question/22097128

Probability please answer‍♀️ Helppp please

find the expectation e(x) and variance var(x) for the task
suppose you choose a real number x from the interval [2, 10] with a density function of the form f(x) = c/x , where c is a constant

Answers

Step-by-step explanation:

Let X be a random variable with PDF given by

fX(x)={ cx2 |x|≤1 0 otherwise

Find the constant c.

Find EX and Var(X).

Find P(X≥

1

2

).

Point A is at (3, - 8) and point B is at (7, 3)

What is the midpoint of line segment overline AB ?

Please help

Answers

I think it’s (4,-5) but I’m not sure
Other Questions
Evaluate the expression 4^3(7-3) 2 PLEASE HURRY AND HELP ME I DONT HAVE MUCH TIME TILL ITS DUE I have 10th grade ELA work and I don't know what to do.I have to rewrite these sentences using parallel from:In the spring, summer, or in the winter, we will go to Germany. Eric Foreman decorates the Christmas tree, picks up his grandma from the nursing home, and friends are invited over for dinner. The internet can be used to find word meanings, medical information, and locating hotels. FOR THIS QUESTION, solve as if you are on the moon and use moon gravity (g = 1.7 m/s^2)An astronaut stands on top of a lunar lander, which is 2.4 meters tall, and putts golf balls off the side with an initial velocity of 4.5 meters per second. How far in the horizontal direction will they travel?A.) 12.6 mB.) 2.8 mC.) 1.7 mD.) 7.7 m Read the following passage from The Call of the Wild.He would often seize Thornton's hand in his mouth and close so fiercely that the flesh bore the impress of his teeth for some time afterward.In this passage, the author is using violence to reflect _________.confusionconflictbitternessloveThanks for helping! ANSWER ASAPWhat is the length of Line segment B C, rounded to the nearest tenth? 13.0 units28.8 units31.2 units33.8 units Why is it important to eat enough protein?1: to build muscles2: to prevent cancer3: to increase red blood cells4: to increase vein size Which is equivalent to^3*square root* 8^1/4x ?pls hurry its a timed test Which percent is modeled? 9% 19% 91% 99% qu es lo ms caracterstico de la literatura del renacimiento en Espaa. 2.) Find the vertex only for the following function:y = -3x^2 + 12x - 5 y = 4x + 2 :) help please Answer the question please:The correct answer will be marked as brainliest =)thanks xoxo Jessica has an account with a credit union. Her account earns 2.6% simple interest yearly. Exactly a year and a half ago, she opened her account with $900.How much interest has she earned so far? What is usually true in an autocracy?A. Citizens vote for their leaders in elections.B. Citizens have little say in government affairs.OC. Government power is limited by checks and balances.D. A small group of people decide on government policies. We know we have exerted a force even when we have done no work. This is called For an atom of chlorine-35, what number would you put as the SUPERSCRIPT in the atomic notation? Mrs. Reed spent $34 to buy M&Ms and paper clips for her students. She bought a totalof 10 items. If the M&M bags were $3 each and the paper clips were $4 for each box,how many of each did she buy? Will give brainliest!Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s)Complete the inverse function for the function given below.(1) = 21 - 4() =T + Arguments that are proven to be well supported with evidence is called? How did American Indians participate in the American Revolution?