Mathematics Middle School

2. Marcus worked the following problem out in his notebook. Is his answer correct? Did he do the work correctly? If not,
explain to Marcus what he did right and also what he needs to do to correct his work.
13-
-13'
-
1
169

Answers

Answer 1

Answer:

Step-by-step explanation:

Answer 2
It looks correct to me to negatives equal positive

Related Questions

Help meeeeeeeeseeeee fast

Answers

The lower is 1 median is 5 upper is 7

Answer:

lower quartile: 3

Median: 4

upper quartile: 6

fill in the blanks this is on simple probability if that helps

Answers

Answer:

[tex]\large \boxed{\mathrm{ion \ even \ know \ fr \ }}[/tex]

Can you give me brainlyist

If there are 27 lollipops and 54 candy bars for a gift bag, fill out all of the possible ratios of lollipops to candy bars that could be made.

Answers

the ratio is 1 : 2. hope this helps

Answer:

1:2

Step-by-step explanation: 54 divided by 27 is 2 so 1 lollipop is 2 candy bars!

What goes into 8x and goes into 56?

Answers

Answer: 7Step-by-step explanation:8*7=56
X=7 cause 8x=56
X=56/8
X=7

To find an increase of 30% of price P, which expression should you use to find the final price?

A. .70p
B. .30p
C. 1.70p
D. 1.30p

Answers

The final price would be 1.3 times the original price P, or 1.3P. This corresponds to option D, 1.30P.

why the option D is correct

To find an increase of 30% of price P, you would need to use the expression:

D. 1.30P

This is because an increase of 30% means adding 30% of the original price P to P. Mathematically, this can be represented as:

P + 0.3P

Simplifying this expression, we get:

1.3P

Therefore, the final price would be 1.3 times the original price P, or 1.3P. This corresponds to option D, 1.30P.

Write the meaning of these mathematical terms

augend
addend
sum
subtrahend
minuend
difference
multiplicand
multiplier
product
factors
dividend
divisor
quotient
remainder

( you’ll get 80 things for doing all of them ) thank you

Answers

Answer:

Augend - the number to which another is added.

Addend - A number added to another.

Sum - The result of adding two or more numbers.

Subtrahend - A number being subtracted from another.

Minuend -  A quantity or number from which another is to be subtracted.

Multiplicand - A quantity to be multiplied.

Multiplier - A quantity that multiplies.

Product - The result of two or more numbers being multiplied.

Factors -  A number that divides another number.

Dividend - A number being divided.

Divisor - The number you divide by.

Quotient - The result you get from dividing two or more numbers.

Remainder - The amount left over after finishing a division problem.

Answer:

augend- the number to which an addend is added

addend- a number which is added to another

sum- total amount

subtrahend- a quantity or number to be subtracted from another

minuend- a quantity or number from which another is to be subtracted

difference- subtraction

multiplicand- a quantity which is to be multiplied by another number

multiplier-  a factor that amplifies or increases the base value of something else

product- the result of one or more multiplications

factors- a number that divides another number, leaving no remainder

dividend- the number that is being divided or distributed into a certain number of equal parts

divisor- the number that is being divided by

quotient- a result obtained by dividing one quantity by another

remainder- an amount left over after dividing

MAP testing, I hate it. i need help

Answers

Answer:

i believe its -4

Step-by-step explanation:

Answer
-4

Explanation

In the equation, 2/3 in the slope and -4 in the y-intercept

Hope it helps! :)

Answer the written question only : Explain the meaning of both values in the context of the situation.

Slope and Y-intercept and what they both mean!

Answers

Answer:

see below

Step-by-step explanation:

Slope: The slope is [tex]\frac{rise}{run}[/tex], and this means that depending on how many students are increased, then the total number of flags also increases.

Y-intercept: When x=0, when there are 0 students, how many flags are already made.

The slope is

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

[tex]\frac{44-8}{12-0}\\ =\frac{36}{12}\\ =3[/tex]

The y intercept is (0,8)

In this context, the slope represents that for every 3 students, 1 flag string is made.  The y-intercept represents that when no students had made their own flag string, 8 flag strings had already been pre-made.

To answer the very last question (even though you didn't ask for it), the equation would be:

y=3x+8

Hope this helps additionally! :)

Answer:

The y-int=8 and the slope=3

Step-by-step explanation:

y-int in this situation means that they start with 8 flags.

slope means that each time there are 3 more students then there is 1 more flag. (I think)

fill in the blanks.
Triangles are both__________and________.​

Answers

Answer:

two dimensional and polygonal

2 dimensional and polygon

Help can someone answer this for me?

Answers

Answer:

The outdoor carpet would be 36 square ft.

it's 36ft²

i hope this helps!

have a great rest of your day!      (^w^)

Mandissa and Katelynn each make a pitcher of strawberry lemonade. Mandissa wants her drink to be more strawberry flavored with less lemon. She uses 2 1/4 times as many strawberries as Katelynn uses, and 2/3 the amount of lemons. If Katelynn uses 1/3 cup of strawberries and 6 lemons to make her pitcher of lemonade, how many strawberries and lemons will Mandissa use?

A:) 3 cups of strawberries and 6 2/3 lemons
B:) 1 11/16 cups of strawberries and 4 lemons
C:) 3 cups of strawberries and 4 lemons
D:) 1 11/16 cups of strawberries and 6 2/3 lemons

Answers

Answer:

  B:) 1 11/16 cups of strawberries and 4 lemons

Step-by-step explanation:

You want to know how many cups of strawberries and how many lemons Mandissa uses in her lemonade if she uses 2 1/4 times 3/4 cups of strawberries, and 2/3 times 6 lemons.

Strawberries

Mandissa's recipe has strawberries in the amount of ...

   (2 1/4) × (3/4 cup) = (9/4)(3/4) cups = 27/16 cups = 1 11/16 cups

Lemons

Mandissa's recipe has lemons in the amount of ...

  (2/3) × (6 lemons) = (2/3)(6) lemons = 4 lemons

Mandissa uses 1 11/16 cups of strawberries, and 4 lemons, matching choice B.

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Is the relation a function? Explain.

No, because for each input there is not exactly one output.
No, because for each output there is not exactly one input.
Yes, because for each input there is exactly one output.
Yes, because for each output there is exactly one input.

Answers

Answer:

no, because for each input there is not exactly one output

Step-by-step explanation:

ordered pairs (-1,3) and (-1,-2) are are the same line

Answer:

No, because for each input, there is not exactly one output. The input of -1 corresponds to two outputs, -2 and 3, so this is not a function.

Please help and show your work if you do I will make you the brainliest

Pls ASAP

Answers

Answer:

The answer is 288 inches!

Step-by-step explanation:

First you have to split the kite in multiple shapes. To be able to get the surface area of the top triangles, you have to do 32 - 20 to get the height, the answer would be 12. Then you can multiply the height times the width. (the width is 9) If you would do that you would get 108, but since it is a triangle you would need to divide that by 2. But, there is 2 triangles that have the same surface area so we will just keep it at 108. Now we have to get the surface area of the shapes at the bottom of the kite. It shows the width of both of the triangles but we will divide that by 2 to get the width of one, once doing that you will have a width of 6. You need to multiply the width times the height. (the height is 20) Doing that you will get 180, but since it is a triangle you need to divide that by 2. There is 2 triangles so we will just keep it at 180. So now we have to add the 2 groups of triangles together. The lower triangles have a surface area of 180 and the upper triangles have a surface area of 108. Adding those together will get our total surface area of 288 inches!

Also, if I helped you please mark me as a brainliest! :)

The answer is 288 inches!!

Mathematics Practice -
Please help! I need this done today! :( I will mark Brainliest!

The average temperature in Fairbanks, Alaska, was -4°F one day and 6°F the next day. Find the difference of the temperatures.

The Suarez family spends 30% of their monthly income on the house payment. If the house payment is $1,200, what is the family's income?

Simplify: 2a-2b-4a–1b

Carlin wants to determine the general attitude toward math of the students in the school. Which of the following methods will produce a random sample?
a) Survey 10 students from each of Mr. Lee's math class. b) Survey all of the students in Carlin's 1st period class.
c) Survey every 15th student who enters the cafeteria at lunchtime. d) Survey every 3rd student in the list of honors students.

Evaluate: -8 +8

Mary bought a pair of jeans and a sweater. The pair of jeans costs $30 and the sweater costs $35. If sales tax is 6%, how much did Mary spend in total for the jeans and sweater?

On Tuesday the value of a stock decreased by 1/2 point. On Wednesday, the value increased 3/4 point. On Thursday the value decreased by 3/8 point. What integer represents the change in stock value after three days?

Factor the expression below using the greatest common factor.
[tex]6p^{3} -2p^{2} - 8p[/tex]

Nigel borrows $250 and pays 5.5% simple interest each year. If he pays back the money in on year what is the total amount that he pays?

A fish dives into a depth of -3/4 mile below the surface of the water. A turtle's depth is 1/3 as deep as the fish's depth. What is the turtle's depth?

What is the difference of the expression below?
[tex](12f -8g + 3h) - (4f - g + 5h)[/tex]

A cube has a side length of 13 millimeters. What is the surface area of the cube?

Answers


1. To find the difference between the temperatures, we simply subtract the smaller temperature from the larger temperature. In this case, the smaller temperature is -4°F and the larger temperature is 6°F. So the difference between the temperatures is:

6°F - (-4°F) = 6°F + 4°F = 10°F

Therefore, the difference between the temperatures is 10°F.

2. If the Suarez family spends 30% of their income on the house payment, then the remaining 70% of their income is used for other expenses. We can set up an equation to solve for their income:

0.7x = income after house payment
x = total income

We know that the house payment is $1,200, so we can substitute that into the equation:

0.7x = x - 1200

Solving for x, we get:

0.3x = 1200
x = 1200 / 0.3
x = $4,000

Therefore, the family's income is $4,000.

3. Simplifying the expression 2a-2b-4a-1b, we can combine like terms:

2a - 4a - 2b - 1b = -2a - 3b

So the simplified expression is -2a - 3b.

4. To produce a random sample of students, Carlin should use a method that gives each student an equal chance of being selected. One such method is simple random sampling, where each student is assigned a number and a random number generator is used to select the desired number of students. Another method is systematic sampling, where every nth student on a list is selected. However, other methods such as convenience sampling or voluntary response sampling may introduce bias and should be avoided if a truly random sample is desired.
Here are the solutions to the math problems:

1. To find the difference between the temperatures, we subtract the smaller temperature from the larger temperature: 6°F - (-4°F) = 10°F. Therefore, the difference in temperature is 10°F.

2. If the Suarez family spends 30% of their monthly income on the house payment and the payment is $1,200, we can set up the equation:

0.3x = 1200

Solving for x, we get:

x = 1200 / 0.3 = $4,000

Therefore, the family's income is $4,000.

3. Simplifying the expression 2a - 2b - 4a - 1b, we can combine like terms:

2a - 4a - 2b - 1b = -2a - 3b

Therefore, the simplified expression is -2a - 3b.

4. To produce a random sample, we need to select individuals randomly from the population. Option c, surveying every 15th student who enters the cafeteria at lunchtime, is the only method listed that produces a random sample.

5. Evaluating -8 + 8, we can see that the terms cancel each other out, so the result is 0.

6. To find the total amount Mary spent for the jeans and sweater including sales tax, we can calculate:

Total cost = Cost of jeans + Cost of sweater + Sales tax

Total cost = $30 + $35 + 0.06($30 + $35)

Total cost = $30 + $35 + $3.3

Total cost = $68.3

Therefore, Mary spent $68.3 in total for the jeans and sweater.

7. To find the change in stock value after three days, we can add and subtract the values given:

-1/2 + 3/4 - 3/8 = 1/8

Therefore, the change in stock value after three days is 1/8.

8. To factor the expression using the greatest common factor, we can factor out 4x:

4x(3x - 2) - 2(3x - 2)

= (4x - 2)(3x - 2)

= 2(2x - 1)(3x - 2)

Therefore, the factored expression is 2(2x - 1)(3x - 2).

9. To find the total amount that Nigel pays back after one year, we can use the formula:

Total amount = Principal + Simple interest

Simple interest = Principal x Rate x Time

In this case, the principal is $250, the rate is 5.5%, and the time is 1 year.

Simple interest = $250 x 0.055 x 1 = $13.75

Total amount = $250 + $13.75 = $263.75

Therefore, Nigel pays back $263.75 in total.

10. If the fish's depth is -3/4 mile, the turtle's depth is (1/3)(-3/4) = -1/4 mile. Therefore, the turtle's depth is -1/4 mile.

11. To find the difference between the expressions, we can subtract the second expression from the first:

(2x^2 + 3x - 1) - (3x^2 - 2x + 3)

= 2x^2 + 3x - 1 - 3x^2 + 2x - 3

= -x^2 + 5x - 4

Therefore, the difference of the expressions is -x^2 + 5x - 4.

12. The surface area of a cube is given by the formula 6s^2, where s is the length of one side of the cube. In this case, s = 13 mm, so we can calculate:

Surface area = 6(13^2)

Surface area = 6(169)

Surface area = 1014 mm^2

Therefore, the surface area of the cube is 1014 square millimeters.

Helpnasapvpledssd help asap pls

Answers

Answer:

lower quartile = 3

media = 8

upper quartile = 9

Not sure ummm hmmmm I think it’s nvm

I've asked these questions individually but one or two of them has to be wrong.
Take a look.....


what's the answer?????

Answers

Answer:

ECHA

Step-by-step explanation:

ECHA

Hope that helps mate.

What fraction is equal to 24/36?

Answers

Answer: 2/3

Step-by-step explanation:

The GCD of 24 and 36 is 12.

So divide each number by 12

12/2=2

36/2=3

2/3

Answer:

2 / 3

Step-by-step explanation:

You can simplify 24/36 to 2/3. That would make 2/3 equal to 24/36!

If you have any question please ask me! :)

4. Which of the following situations does not have the same unit rate as the graph shown?

graph is in the photo


F. Asher buys gum for $0.20 a piece.


G. A daycare has six workers for every 30 children


H. Melanie reads 9 pages of her book every 45 minutes.


J. Richie earns $10 every 2 hours to pet sit for his neighbor.​

Answers

Answer: h

Step-by-step explanation: answer

Answer:

The answer is J: Richie earns $10 every 2 hours to pet sit for his neighbor

Step-by-step explanation:

Someone help please i need this fast like asap

Answers

Answer:7ft2

Step-by-step explanation:   3 x 2 = 5       1 x 2 = 2       5 + 2 = 7

Solve the inequality m-3 ≥ -2

Answers

Answer:

m ≥ 1

Step-by-step explanation:

Step 1: Isolate the variable. (Add 3 to both sides.)

m - 3 + 3 = -2 + 3

m ≥ 1

Answer: m ≥ 1

Step-by-step explanation:

Set up the equation

Add three to both sides

-3 + 3 = 0

-2 + 3 = 1

m ≥ 1

FINALLY!!! THE LAST SLOPE PUZZLE! PUZZLE 5!!

Answers

Answer: I have no idea how to solve this

Step-by-step explanation: need more info

Answer:

I only know 3, sorry :')

Its -3

Show your work (step by step!)

Answers

Answer:

[tex]x = \frac{7}{8}[/tex] or [tex]x = 0.875[/tex]

Step-by-step explanation:

Step 1:

[tex]\frac{1}{6} + \frac{1}{12} x ( 7 - 24x) = \frac{8}{3} x (\frac{1}{2} -x)[/tex],

[tex]\frac{1}{6} + \frac{7}{12} - 2x = \frac{8}{3} x (\frac{1}{2} - x)[/tex]

[tex]\frac{1}{6} + \frac{7}{12} - 2x = \frac{4}{3} - \frac{8}{3}x[/tex]

Step 2:

[tex]\frac{1}{6} + \frac{7}{12} - 2x = \frac{4}{3} - \frac{8}{3}x[/tex]

[tex]\frac{3}{4} - 2x =\frac{4}{3} - \frac{8}{3}x[/tex]

Step 3:

[tex]\frac{3}{4} - 2x =\frac{4}{3} - \frac{8}{3}x[/tex]

[tex]9 - 24x = 16 - 32x[/tex]

Step 4:

[tex]9 - 24x = 16 - 32x[/tex]

[tex]9 - 24x + 32x = 16[/tex]

[tex]-24x + 32x = 16 - 9[/tex]

Step 5:

[tex]-24x + 32x = 16 - 9[/tex]

[tex]8x = 16 - 9[/tex]

[tex]8x = 7[/tex]

Step 6:

[tex]x = \frac{7}{8}[/tex]

Hope this helped.

What the other person said

I’m struggling with geometry

Answers

Answer:

201.5 m squared

Step-by-step explanation:

There is 2 triangular bases, and the area of a triangle is 1/2 of the base times the height Ex. 1/2 (bxh)

your length is 5 a your width is 4.3 So

5 x 4.3 = 21.5 divided by 1/2 = 10.75 x 2 because their is 2 triangular bases which brings you back to 21.5 m.

now for the slants.

The area of a rectangle is l x w

The length is 12 and your width is 5

12 x 5 = 60  60 x 3 because there is 3 rectangular sides

= 180 m.

add both sums add your surface area is

201.5 m2 squared

I believe this is the answer sorry if it's wrong

201.5m2
Hope that helps mate.

I forgot how to do this so can someone help me out with this question your generosity will be thanked

Answers

Answer: 62ft^2

Step-by-step explanation:

Area of rectangle - Area of triangle = Area of outdoor carpet

RECTANGLE = 72

TRIANGLE = 9

72 - 9 = 63

the answer is 9ft^2 your welcome

could somebody help me with this please this is due tomorrow the question is asking how much bigger Hillsboro is than the Jupiter lighthouse

Answers

1445.1 square miles bigger
It should be 10 miles bigger because 18-28 is 10

What is the value of p +(p-q)+q+(q-p)

Answers

i think You can do addition and subtraction in any order. So let's remove all the brackets.

p + (p-q) + q + (q-p) = p + p - q + q + q - p

Now let's rearrange these two:

p + p - q + q + q - p

= p - p + p - q + q + q

= 0 + p - q + q + q

We get p - q + q + q.

Now,

p - q + q +q

= p + 0 + q

= p + q

Therefore, answer: p + q.

Hope this helps. :)

Answer:

The answer is p + q.

Step-by-step explanation:

If you have any questions ask me please! :)

cld someone pls help me i need it asap wait mb its not math its science

Answers

Answer:

Step-by-step explanation:

6345634563456345

Put the atoms close to each other

Angelica reflects ABCDE over the y-axis and translates it up 8 units. Does her transformed figure match A"B"C"D"E"? If not, describe how her transformed figure compares to A"B"C"D"E"

Answers

Answer:

Reflecting over the y axis will have the point (x,y) turn into (-x,y).

Step-by-step explanation:

questions in the photo​

Answers

Answer: B

Step-by-step explanation:

A line is a function when every input has only one output.

The answer is B the graph is a function

slope hw

(this is different)

thx!

Answers

Answer:

I don't know if i'm right but i think k=8.75. don't take my word for it though!

The slope would be 1/2
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