Mathematics Middle School

On the science test, Lucy got 3 questions
wrong, each of which were worth 4 points. On
the same test, she earned 5 extra credit points.
What was the change it point value from missed
questions and extra credit? Write your answer
as an integer.

Answers

Answer 1

Answer:

-7

Step-by-step explanation:

She lost 12 points, 3 * 4 = 12, and she gained 5 points, so -12 + 5 = 5 - 12 = -7

Answer 2

Answer:

-7

Step-by-step explanation:

Related Questions

An ice cream sandwich has a length of 4 inches, width of 212 inches, and height of 34 inches.What is the volume of the ice cream sandwich?

Answers

Answer:

28832

Step-by-step explanation:

thats a big ice cream sandwich, can i have some?

Answer:

28832

Step-by-step explanation:

Formula: L x W x L

4x212x44= 28832

Teddy wants to wrap a gift she bought for her best friends birthday. Determine how much wrapping paper she will need to cover the entire surface area of the gift box. (and yes that side is 5.3 incase you are questioning if that point is there or not.

A. 127.2 in squared
B. 24.6 in squared
C. 49.1 in squared
D. 98.2 in squared

Answers

Answer:

127.2

Step-by-step explanation:

A. 127.2 in squared I remember doing this so I I know I am right

JUST READ THE ATTACHMENT

Answers

Your answer would be 3,4,5
The anwser is (A 3,4,5)

Which group contains numbers that all round most closely to 0? 1/2,2/7,9/10 3/4,5/6,7/9 3/5 , 2/4,4/7 1/5 ,2/9 , 0/4

Answers

Answer:

0/4 and all the other numbers in it's group are super low, so the last group. 0/4 is 0.

0/4 equals 0 exactly but the closes that isn’t equal too is 1/5

How do you convert parts per million (ppm) to meters?

Answers

Answer:

100,000 in 1

Step-by-step explanation:

Plz help will be marked BRAINLIEST

Answers

Answer:

a-45

b-30

c-90

Step-by-step explanation:

blue shape-90 degree angle

pink is 45 since 2 make up a quadrant

aqua is 30 because half 2 quadrants equal 180.

180-(45x2)=90

90/3=30

hope this helps!

The answer above is correct……………………………..,,,,

help plzzz...also give steps

Answers

Your answer is h=2 or the height is to hope this helped
answer = 2.5, i did 12.5 divided by 5 which got 2.5

A mirror frame in the shape of an oval is shown below. The ends of the frame form semicircles:
An oval is formed by a rectangle with semicircles at each end. The length of the rectangle is 54 inches. The width of the rectangle is 27 inches.

Which of the following is the perimeter of the inner edge of the frame?

(π = 3.14)

192.78 inches
246.78 inches
277.56 inches
331.56 inches

please help lol

Answers

Answer:

The answer is 192.78 inches

Step-by-step explanation:

An oval is formed by a rectangle with semicircles at each end. We can visualize this easily.

The length of the rectangle is 54 inches.

The width of the rectangle is 27 inches.

The perimeter of rectangle is =  

=  

= 162 inches

And because there are two semicircles, we can combine them to form a circle. So, perimeter of a circle is called a circumference.

The width of the rectangle forms the diameter, so its half will be the radius.

r =  

The circumference is given by :  

=  inches

Now as the described oval shape is a complete figure without lines inside, we will subtract the width of both sides of the rectangle from the complete perimeter.

The complete perimeter is =  inches

The inner edge perimeter will be =  = 192.78 inches

pls mark as brainliest

Answer:

1st option

Step-by-step explanation:

Find the mean of the set of data. Use a calculator if necessary.

1, 5, 8, 10, 11

The Mean is _____.
5
7
6
8

Answers

Answer:

7

Step-by-step explanation:

mean is average of the numbers

add all values then divide by the numbers

(1+5+8+10+11) / 5

35 / 5 = 7

7
1+5+8+10+11 is 35
35/5 is 7

What angle is complementary to 1 ? I'll mark brainliest

Answers

the angle complementary to angle 1 is angle 2

Answer:

angle 2

Step-by-step explanation:

complementary angle to angle 1 is angle 2 because in complementary angle sum of two amgle is 90 degree and when we add angle 1 and angle 2 it gives us 90 degree since they are perpendicular.

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. If he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black?
StartFraction 1 over 192 EndFraction
StartFraction 1 over 72 EndFraction
StartFraction 3 over 220 EndFraction
StartFraction 1 over 55 EndFraction

Answers

There are 13 marbles all together
Probability of drawing a yellow is 2/12
Don’t replace the marble
The probability of drawing a red marble is 4/11
Don’t put the marbles back in
The probability of drawing a black is 3/10
Multiply them together.
2/12 times 4/11 times 3/10.
24/1320 or. 1/55

Answer:

There are 12 marble if you add them all together, (3+2+4+3=12)

the probability of drawing a yellow is 2/12  the probability of drawing a red marble is 4/11 The probability of drawing a black is 3/10

Multiply them together.

2/12 times 4/11 times 3/10.

=24/1320

Step-by-step explanation:

Please help I will make brain!!

Answers

For 1 it is 6
For 3 it is 12
And for 12 it is 48

which angle is supplementary to 16 ?

Answers

Answer:

Angle 13 is supplementary to angle 16

Answer: Angle 13 is supplementary to angle 16

Step-by-step explanation: I took the test

3√3 / √30
step by step pls

Answers

Answer:

3√10/10

Step-by-step explanation:

see the photo

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

Wut that guy said it’s right

Consider the inequality -20.2 > 0y. Which of the following must be true? Check all that apply.
1.You cannot divide by zero.
2.The inequality is equivalent to -20.2 > 0, which is false.
3.The solution is y > 0.
4.The solution is 0 > y.
5.The solution is y = 0.

Answers

Answer:

Step-by-step explanation:

1 and 2

1 because indeed you can't divide -20.2 by zero to get y

2 because the inequality is basically a false situation.

The answer is definitely 1 and 2

The area of the rectangular floor in Tamara's room is 95 5/6 square
feet. The width of the room is 8 1/3 feet. What is the length of Tamara's
room?

Answers

Answer:

11 ½ feet

Step-by-step explanation:

Answer : 11 1/2

Explanation : Area = L • W, so if you do 95 5/6 divided by 8 1/3 you get 11 1/2

Find the volume of this prism.

Answers

Isnt it letter D ? Not sure tho
It is D because you have to multiply 8x7 which is 56 and then multiply 14x 56 which is the answer 784.

Help with math 10 points

Answers

1. Substitute y=5x−7 into −3x−2y=−12.
2. Simplify 5x−y−3x−2y to 2x−3y.
3. Add 2y to both sides.
4. Simplify −3x−10x+14 to −13x+14.

(I answered it from top to bottom, so it would go top 1 2 to botttom 3 4)
I honestly don’t know

which angles are supplementary to each other ? Select all that apply

Answers

Answer:

angles 3 and 1

angles 3 and 2

angles 2 and 1

The answer above is correct ……………………

To encode a message, James first replaces each letter within the message with its
corresponding number, where A = 1, B = 2, · · · , Y = 25, and Z = 26. Next, James
multiplies each number by 3 and then subtracts 5, and continues this process a total
of n times. For example, when n = 2 the letter D is encoded to the number 16.
If James encoded a four letter message to the four numbers 367 205 853 1339, what
is the value of n that he used?
(A) 2 (B) 3 (C) 4 (D) 5 (E) 6

Answers

A is the correct answer

The value of n is 4. That means, the process is applied 4 times.

What is multiplication?

Multiplication is a mathematical arithmetic operation. It is also a process of adding the same types of expression for some number of times.

Example - 2 × 3 means 2 is added three times, or 3 is added 2 times.

Given:

To encode a message,

James first replaces each letter within the message with its corresponding number, where A = 1, B = 2, · · ·, Y = 25, and Z = 26. Next, James multiplies each number by 3 and then subtracts 5, and continues this process a total of n times.

To find the value of n:

We use process inversely.

Let m be the given number.

For example,

m = 16

The inverse process;

add 5 and then divide by 3 until we get the whole number.

So, first time

(16 + 5)/3 = 21/3 = 7,

Second time applying process,

(7+5)/3 = 4.

And the corresponding letter is D.

And the value of n is 2.

Now, m = 367

Applying process inversely,

First time,

(367 + 5) / 3 = 124

Second time,

(124+5)/3 = 43

Third time,

(43+5)/3 = 16

Fourth time,

(16+5)/3 = 7

m = 205

Applying process inversely,

First time,

(205+ 5) / 3 = 70

Second time,

(70+5)/3 = 25

Third time,

(25+5)/3 = 10

Fourth time,

(10+5)/3 = 5

m = 853

Applying process inversely,

First time,

(853+ 5) / 3 = 286

Second time,

(286+5)/3 = 97

Third time,

(97+5)/3 = 34

Fourth time,

(34+5)/3 = 13

m = 1339

Applying process inversely,

First time,

(1339+ 5) / 3 = 448

Second time,

(448+5)/3 = 151

Third time,

(151+5)/3 = 52

Fourth time,

(52+5)/3 = 19

We applied the process 4 times.

Therefore, the value of n is 4.

To learn more about the multiplication;

https://brainly.com/question/19634536

#SPJ2

Which equation correctly models the relationship between hours passed, h, and the number of bacteria present, b, as shown in the table?

Amount of Bacteria

Hours # of

Passed Bacteria

0 1

1 2

2 4

3 8

4 16


A. b=2 to the h power

B. b=2 to the h power plus 1

C. b=2h

D. b=2h+1
sorry, it shows it a bit messed up. the number of hours is shown on the left side with the numbers directly below it. the number of bacteria is the second column.

Answers

Answer:

A. b = 2 to the h power

Step-by-step explanation:

For the table:

When:

h = 0, b = 1, so 1 = 2^0, 1 = 1

h = 1, b = 2, so 2 = 2^1, 2 = 2

h = 2, b = 4, so 4 = 2^2, 4 = 4

h = 3, b = 8, so 8 = 2^3, 8 = 8

h = 4, b = 16, so 16 = 2^4, 16 = 16

I got A. B=2 to the h power

which angles are complementary to each other select all that apply

Answers

Answer: 4 and 1

Step-by-step explanation:

Both ∠4 and ∠1 are equal angles. Both the angles are beside a right angle and you can measure it. The other answers are over 90 degrees, or below 90. This is because they either combine a 90 degree angle with another angle, or that they are too small and obvious that they are not complementary.

Answer:

<2 and <4

complimentary <s add up to 90 °

which angles are vertical to each other ?

Answers

Answer:

Make me a Brainlist pls

Step-by-step explanation:

10 and 4 I think so! it would be correct

Answer:

∠7 and ∠5

Step-by-step explanation:

I NEED HELP ASAP!!!!! pls and thank you ^w^

Answers

1. Like fractions
2. Equivalent fractions
3.least common demnominator
4.mixed number
5.unlike fractions
1. Like fractions
I double checked myself

What is the domain of the function y = √2x − 6
step by step pls

Answers

answer: x is greater than or equal to 3. this is because if x is less than 3, for example, -1, the number under the radical would be -2-6, or -8. you cannot have a square root of a negative, hope this helped!

which angle is adjacent to 9 ?

Answers

Adjacent means next to, so 12

Answer:

its the last one 12

Step-by-step explanation:

A family went out to eat. Below is the number of corn dogs that each of the four people ate.
​

Answers

Answer:

What are you asking? I know the number of corn dogs but what are we suposed to figure out?

Step-by-step explanation:

What is the question??!!!!!

Subtract:
3 1/8 - 1/2​

Answers

Answer:

2 5/8

Step-by-step explanation:

3 1/8 - 1/2​

Get a common denominator

3 1/8 - 1/2 *4/4

3 1/8 - 4/8

Borrow 1 from the 3 in the form of 8/8

2 + 8/8+1/8 - 4/8

2 9/8 - 4/4

2 5/8

Answer:

21/8 or 2 5/8

Step-by-step explanation:

Step 1: Find a common denominator for 1/2 to have the same denominator as 3 1/8:

1/2 is equal to 4/8, which has the same denominator as 3 1/8.

Step 2: Convert the mixed fraction into an improper fraction so it will be easier to subtract.

3 1/8 = 25/8

Step 3: Now subtract:

25/8 - 4/8 = 21/8 or 2 5/8 (keep the denominator the same)

Now you know that someone stole 4 pieces of your pizza :(

Hope this helps :)

-jp524

Mark wants to paint a mural. He has 1 1/4
gallons of yellow paint, 1 1/5
gallons of green paint, and 7/8 gallon of blue paint. Mark plans to use 3/4
gallon of each paint color. How many gallons of paint will he have left after painting the mural? Enter your answer as a simplified fraction.
Mark will have gallons of paint left after painting the mural.

Answers

Answer: 1 5/24

Step-by-step explanation:

Please give brainliest and a Heart

The answer is 1 5/24

Enter your answer in simplified fraction form
There are 4 queens in a standard deck of 52 cards. You pick one card at random. What is the probability of not picking a queen
The probability of not picking a queen i

Answers

Answer:

1/13

Step-by-step explanation:

Answer:

1/13 is the answer

Step-by-step explanation:

Other Questions
There is a population of 5 bacteria in a colony. If the number of bacteria doubles every minute, which function can be used to determine what the population will be x minutes from now? What type of RNA acts as a temporary copy of DNA's instructions and provides details on how to assemble a polypeptidechain? 5.Which of the quadratic functions has the narrowest graph?A. [tex]y=-2x^2[/tex]B. [tex]y=\frac{1}{2} x^2[/tex]C. [tex]y=\frac{1}{7} x^2[/tex]D. [tex]y=-4x^2[/tex] i need help i don't understand #3 These box plots show daily low temperatures for a sample of days in twodifferent towns.Town A10 15 203055HITown B520304055H0 5101520455055 6025 30 35 40Degrees (F)Which statement is the most appropriate comparison of the centers?O A. The median for town A, 30, is less than the median for town B,40B. The mean for town A, 20, is less than the mean for town B, 30C. The median for town A, 20, is less than the median for town B,30O D. The median temperature for both towns is 30. Chau will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $50 and costs an additional $0.19 per mile driven. The second plan has an initial fee of $57 and costs an additional $0.15 per mile driven. Which expression has a value of 31 when x = 6, y = 10, and z = 11? A. 3xyz B. 2x + 3y z C. 4yz 2x D. xy 2z 4.Which BEST describes the role of symbols in art?They are only used by 3D artists.They are universal among cultures.They are used primarily in African art.They are quite common in most forms of art. Green Thumb Nursery has 53,000 shares outstanding at a market price of $63.57 per share. The earnings per share are $3.57. The firm has total assets of $362,000 and total liabilities of $207,000. Today, the firm announced a share repurchase for $117,000 of its stock. What is the earnings per share after the repurchase ***no links please*** Which angles are vertical to each other ? Select all that apply. What is the lcm of 48 and 54 What is a scavenger? A) an organism that lives in or on another organism B) an organism that feeds on dead matter C) an organism that produces food from the energy in sunlight D) organisms that eat plants and grasses George Washington, the first U.S. president, advised the country to trade and be peaceful with foreign countries. However, he said to avoid further connections between governments. He said it would be dangerous. Do you think his views are realistic today? Explain your response. Which statement accurately represents the arrangement of electrons in Bohrs atomic model?Electrons move randomly in the relatively large space surrounding the nucleus.Electrons move around the nucleus in fixed orbits of equal levels of energy.Electrons move around the nucleus in fixed orbits of increasing levels of energy.Electrons vibrate in fixed locations around the nucleus. PLEASE HELPIf 62.6 g of lead (II) chloride is produced, how many grams of lead (II) nitrate were reacted? How does the graph ofg(x) = 0.5(2)*-3 1compare to the graph ofthe parent functionf(x) = 2*?. Write a fulldescription. Find the value of X and Y outline 3 computer system problem that could harm people and propose the way avoid the problem When should a bar graph be used?A. When the independent variable is composed of categories and does not show arelationshipB. When the independent variable is continuous and does not show a relationship to thedependent variable.C. When the independent variable is continuous and shows a causal link to thedependent variable,D. When there is no independent variable.