Mathematics Middle School

Find each sum or difference
1. -1/2 + 1/3
a. -1/6
b.-1/3
c.2/3
d.1/6

2. -3 1/5 + (-6 1/2)
a. -3 2/7
b. -3 7/10
c. -9 2/7
d. -9 7/10

3. 5/8 - (-2/8)
a. -3/8
b. -7/8
c. 3/8
d. 7/8

4. -9/10 - 2/5
a. -1 3/10
b. -1 1/10
c. -7/10
d. -5/10

5. 6 3/5 - (-2 1/5)
a. - 8 2/5
b. -4 2/5
c. 4 2/5
d. 8 4/5
Please help, its currently 3:53 am...

Answers

Answer 1

Answer:

Step-by-step explanation:

-1/2 + 1/3

(-3 + 2)/6

- 1/6


-3 1/5 + -6 1/2

-9 + (2+5)/10

-9 7/10

5/8 - (-2/8)

5/8 + 2/8

(5+2)/8

7/8

-9/10 - 2/5

(-9-4)/10

-13/10

6 3/5  + 2 1/5

8 + (3+1)/5

8 4/5

Answer 2

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

-1/2 + 1/3

(-3 + 2)/6

- 1/6

-3 1/5 + -6 1/2

-9 + (2+5)/10

-9 7/10

5/8 - (-2/8)

5/8 + 2/8

(5+2)/8

7/8

-9/10 - 2/5

(-9-4)/10

-13/10

6 3/5  + 2 1/5

8 + (3+1)/5

8 4/5

Related Questions

Can someone help, please

Answers

Answer:9/4, simplified it is 2 and 1/4, or 2.25

Step-by-step explanation: y value moves up from 1 to 10, x value moves right from 6 to 10.

Answer: 9/4

work:

1-10=-9

6-10=-4

Will you need to change the inequality sign in the problem 5x+2+5x<16? Explain your answer. 20 Points

Answers

Answer:

no

Step-by-step explanation:

10x+2 < 16

10x < 14

x <14/10

Do not change sign because you are not dividing by a negative number

Dan is cutting 4.75-foot lengths of twine from a 249-foot spool of twine. He needs to cut 42 lengths and says that 40.5 feet of twine will remain. Show that this is reasonable.

Answers

To show that Dan's statement is reasonable, we can set up an equation to represent the situation. Let's let x represent the number of feet of twine that Dan has cut.

We can then set up the following equation: [tex]4.75x = 249 - 40.5[/tex]

Solving for x, we find that x = 42. This means that Dan has cut 42 lengths of twine, which is what he said he would do.

Since the number of lengths of twine that Dan has cut and the amount of twine that will remain match what Dan said, his statement is reasonable.

There are 15 sedans on a used car lot, along with 54 other vehicles.
What is the probability that a randomly selected vehicle will be a sedan?

Write your answer as a fraction or whole number.

Answers

Answer:

5/23

Step-by-step explanation:

54+15=69

15/69=5/23

The Probability of selecting a sedan is 22%.

What is Probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The degree to which something is likely to happen is basically what probability means.

Given that there are 15 sedans and 54 other vehicles, the total number of vehicles on the lot is:

Total number of vehicles

= Number of sedans + Number of other vehicles

= 15 + 54

= 69

So, the Probability of selecting a sedan

= Number of sedans / Total number of vehicles

= 15 / 69

= 5/23

= 0.22

= 22%

Learn more about Probability here:

https://brainly.com/question/32117953

#SPJ2

13 friends go to a restaurant. The bill comes to $170. The restaurant's policy is to add on a tip that is 18% of the bill for parties of 8 or more. What is the total cost, with the tip?

Answers

The total cost with tip is $200.60.
200.60 dollars is the answer

What is the coefficient in the expression 5 − 6?

Group of answer choices
6
5x-6
5
5x
Thank u!

Answers

Answer:

9

hope you like it

Answer:

5

Step-by-step explanation:

coefficient is the number before the variable (x)

please some help meee !!!!! :((((((

Answers

Answer:    

                   

Step-by-step explanation:

Sphere:no faces

Cone:2

Cylinder:3

Pyramid:5

Rectangular prism:6

House:? Cant see full shape

Can someone help, please

Answers

Answer:

The slope is [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

y = mx + b  In a linear equation the slope is the number before the x.

The slope is 2/3.

Because the number in front of x is the slope.

I'm posting this question again because I seriously need help with it and it's only 8th grade math

Answers

Answer:

Step-by-step explanation:

Remember to put >= or <= for solid lines and < and > for dashed

1. =y >= 1/3x -4

2. y < 2x

3. y>= 3

4. y<= -3/2x +4

Answer: add some description not just the picture also I think you just have to count them like the (-) and the (+) with the numbers on the side

Step-by-step explanation:

Mr. F's bathtub drains at a rate of 2 gallons per minute but fills at 3.5 gallons per minute. After a 4000-calorie dinner, Mr. F forgot to close the drain before filling his 60 gallon tub. How long did it take for the tub to fill? Express your answer in minutes.

Answers

Answer:
40 minutes
Step-by-step explanation:
It will take 40 minutes because if the water drains at a rate of 2 gallons a minute but fills at 3.5 gallons a minute, that will mean that the water will still fill at 1.5 gallons per minute.

If you multiply 1.5 gallons by 20 minutes the tub will be half full with 30 gallons of water so that means if you multiply 20 minutes by 2 it will mean that the tub will have 60 gallons of water and it would have taken 40 minutes to fill.

Sweet Branch Grocery sells 5 bottles of soda for $6. As of next week, though, the price per bottle will increase by 10%. How much will 12 bottles of soda cost next week?

Answers

Answer:

15.84

Step-by-step explanation:

6 divided by 5 is 1.2

1.2 increased by 10% is 1.32

1.32 x 12 is 15.84

(NOT SURE IF IM RIGHT)

Ruby has tangerines and watermelons in a ratio of 83:25. How many tangerines does she have if she has 50 watermelons? On the double number line below, fill in the given values, then use multiplication or division to find the missing value.

Answers

Answer:

166:50

Step-by-step explanation:

25 x 2 = 50

82 x 2= 166

Ruby has 108 tangerines
Just add 25 too 83

Evaluate the expression:
4 x (10+8) + 3 to the power of 2
Thank u!

Answers

Answer:

Step-by-step explanation:

81

Answer: 81
Step-by-Step:
4x(10+8)+3^2
4x(10+8)+9
4x(18)+9
72+9
81

please help me on this question

Answers

Answer: B

Step-by-step explanation:

B, I hope this helped you

Carmela mixes 3/4 kilograms of walnuts, 1/2 kilograms of almonds,and 1/4 kilograms of pecans together. She divides the mixed nuts into 3/10 kilogram bags. How many bags of mixed nuts does she have. PLEASE HELP DUE TOMORROW.

Answers

Answer:

5 bags of mixed nuts.

Step-by-step explanation:

First, we add the amount of nuts together.

3/4 + 1/4 = 1

1 + 1/2 = 1 1/2

1 1/2 = 3/2 as an improper fraction.

Then we divide 3/2 by 3/10

To divide fractions, use "Keep, Switch, Flip"

Keep the first number, switch the sign, and flip the second fraction.

3/2 * 10/3 = 30/6 = 5.

Carmela would have to calculate the metric ton by differential of the radius of pluto. Then the answer is 5.

im tired of typing. sorry mb, the question is in the first picture though!!1 asnwers in the other pic

Answers

the answer is table d

the slope of the graph is 1/3 (rise 1, run 3) and the y intercept is at 0 so the equation of the line is y=1/3 x

if we plug in the x values to the equation, we will get the corresponding y values in the table:
y=1/3(12)=4
y=1/3(15)=5
y=1/3(18)=6
y=1/3(21)=7
chart D becuse on the graph it hits exactly at 3,1 so that means x times 1/3=y

Question. {Please explain your answer}

(Which statement correctly describe the data shown in the scatter plot?)


A. The scatter plot shows no association.


B. The scatter plot shows a linear association.


C. The point (2, 14) is an outlier.


D. The scatter plot shows a negative association.

Answers

Answer:

The scatter plot shows a (positive) Liner association.

Step-by-step explanation:

just by looking at the graph, you can see a positive correlation for each point, because they line up to form an almost straight line upward. I hope this helped!

HELP ASAP 53 POINTS
i need this very fast pleaseeee

Answers

Answer:

D and then D

Step-by-step explanation:

3.30-2.84=0.46

0.46/2=0.32 (because two years)

this is negative because it is a decrease

3.68-2.84= 0.84

0.84/2= 0.42, which is higher than all the others

Answer:

D & D
Explanation:

Help. I'll mark as brainlist.

Answers

Answer:

SUT and TUS

Step-by-step explanation:

Answer: Angle U, Angle SUT

Step-by-step explanation:

Angle U- the point of the angle

Angle STU- the points of the angle

The data below shows the ratio of brown to green crayons in four kindergarten classrooms. 13 to 19 15 to 28 18 to 32 30 to 68 Which table below correctly shows these ratios in a three-column table?

Answers

Answer:

Brown 13 15 18 30

Green 19 28 32 68

Total 32 43 50 98

Step-by-step explanation:

(ik this is rly late im just doing it for a quest lol)

At a grocery store, cartons of 6 eggs are $2 each. Packages of 10 ham steaks are $15 each. Kenia wants to have equal numbers of eggs and ham steaks. What is the least amount of money she can spend? ​

Answers

Probably like $55 because 6x5=30 and 10x3=30 so 2x5= 10 and 3x15= 45 so 10+45=55

Answer:

Minimum: 30. Cost: 55$

Step-by-step explanation:

LCM of 6 and 10 is 30,

5x6=30, 10x3=30

2x5=10, 3x15=45

45+10=55

55.

your welcome!

2(m + 2) =22 Describe what it means to distribute the 2 to each term inside the parenthesis

Answers

Answer:

Step-by-step explanation:[tex]\frac{2(m+2)}{2}[/tex]

step 1

2(m+2)=22=2x11

step 2

:[tex]\frac{2(m+2)}{2}=\frac{2*11}{2}[/tex]

step 3

(m+2)=11

step 4

m=11-2=9

Answer:  (see below)

Step-by-step explanation:

2 distributed to each term inside 2(m + 2) looks like this:

2m + 4

first multiply 2xm, then 2x2

Now you have an expression where you can solve for m:

2m + 4 = 22

2m = 22 - 4 = 18

m = 18/2 = 9

Solve each word problem. Show your work and include the correct units.
1. Each side of a square barn is 9 meters long.

a. What is the barn’s perimeter? ___________________
b. What is the barn’s area? ___________________

2. A rectangular piece of metal is 10 inches wide and 14 inches long.

a. What is the perimeter? ___________________
b. What is the area? ___________________

3. A rectangular cornfield has a length of 7 kilometres and an area of 63 square
kilometres.

a. What is the width of the cornfield? ___________________
b. What will be the area if the length and width are doubled? ______________

4. Eric has 54 yards of fencing to use for a flowerbed. Some possible measurements are
shown below. For which flowerbeds does Eric have enough fencing? Color in all the
possible answers.
A.
length = 30 yards
area = 300 square yards

B.
length = 20 yards
width = 5 yards

C.
width = 12 yards
perimeter = 48 yards

D.
length = 26 yards
width = 22 yards

E.
length = 16 yards
width = 14 yards

F.
width = 9 yards
area = 162 square yard

Answers

Answer:

Step-by-step explanation:

1

perimeter = 9 · 4 = 36 m

area = 9² = 81 m²


2

perimeter = (10+14) · 2 = 24 · 2 = 48 in

area = 10 · 14 = 140 in²


3

width = 63 : 7 = 9 km

9 · 2 = 18 km

7 · 2 = 14 km

area = 18 · 14 = 252 km²


4

A  300 : 30 = 10

(10 + 30) · 2 = 40 · 2 = 80 (no)


B

(20 + 5) ·2 = 25 · 2 = 50 yd (ok)


C

perimeter is 48 yd (ok)


D

(22 +26) · 2 = 48 · 2 = 96 yd (no)


E

(16 + 14) · 2 = 30 · 2 = 60 yd (no)


F

length = 162 : 9 = 18 yd

(18 +9) · 2 = 27 · 2 = 54 yd (ok)

Answer:

1

perimeter = 9 · 4 = 36 m

area = 9² = 81 m²

2

perimeter = (10+14) · 2 = 24 · 2 = 48 in

area = 10 · 14 = 140 in²

3

width = 63 : 7 = 9 km

9 · 2 = 18 km

7 · 2 = 14 km

area = 18 · 14 = 252 km²

4

A  300 : 30 = 10

(10 + 30) · 2 = 40 · 2 = 80 (no)

B

(20 + 5) ·2 = 25 · 2 = 50 yd (ok)

C

perimeter is 48 yd (ok)

D

(22 +26) · 2 = 48 · 2 = 96 yd (no)

E

(16 + 14) · 2 = 30 · 2 = 60 yd (no)

F

length = 162 : 9 = 18 yd

(18 +9) · 2 = 27 · 2 = 54 yd (ok)

Step-by-step explanation:

Describe a math tool you could use to determine if a relation is a function. Explain how you would use it. Select all that apply.

Multiple select question

A)
I could use a mapping diagram. If more than one arrow points from an input value to the output values, I know it is not a function.

B)
I could use a straight object like a pencil. If the pencil intersects a graph at more than one point when it is held vertically, I know it is not a function.

C)
I could use a table. If I see that there is more than one output for an input, then the relation is a function.

D)
I could use a straight object like a pencil. If the pencil intersects a graph at more than one point when it is held horizontally, I know it is not a function.

E)
I could use a mapping diagram. If more than one arrow points from an output value to the input values, I know it is not a function.

Answers

Answer:

C, Identify the input values. Identify the output values. If each input value leads to only one output value, classify the relationship as a function. If any input value leads to two or more outputs, do not classify the relationship as a function.

The correct answer would be

C

this alien line stuff is confusing me like wth.

Answers

im pretty sure that your answer is right. the slope is 4

Answer: you are right

Hello. This is a very quick question, that requires little effort. I am currently working on my math assignment, and for the project I have to measure five different people. Unfortunately, I don't have enough people to measure. You will get 100 points just for answering this :) But if you do a troll answer, I'll report you :)
"Using a tape measure or ruler, measure the length (in inches) of a person’s left foot and then measure the length (in inches) of that same person’s forearm (between their wrist and elbow). Refer to the diagrams below. You will have two measurements for each person."

Answers

My foot is 17 inches and my forearm is 43 inches

Which of the following sequences represents an arithmetic sequence?

A -5, -3, -1, 1, ...
B -7, -4, 1, 4, ...
C 1, 4, 9, 16, ...
D 2, -4, 8, -16, ...

Answers

Answer:

Step-by-step explanation:

Question

Which of the following sequences represents an arithmetic sequence?

A -5, -3, -1, 1, ...

B -7, -4, 1, 4, ...

C 1, 4, 9, 16, ...

D 2, -4, 8, -16, ...

I believe the correct answer is A.
-5, -3, -1, 1

y - 1/6 + 5/18

A | 1/9
B | 1/4
C | 4/9
D | 1 2/3

Answers

Answer:

y + [tex]\frac{1}{9}[/tex]

Step-by-step explanation:Here are the steps to your problem:

1. Add the numbers

y - [tex]\frac{1}{6}[/tex] + [tex]\frac{5}{18}[/tex]

y + [tex]\frac{1}{9}[/tex]

Solution:

y + [tex]\frac{1}{9}[/tex]

I hope my answer helped you! If you need more information or help, comment down below and I will be sure to respond if I am online. Have a wonderful rest of your day!

u need to get common denominators the way to do so is multiplying 6 by 3 which gets you 18 but what u do to the bottom you do to the top 1 times 3 is 3 which lands you 3/18 plus 5/18 and when you add them you get 8/18 and you just want to convert to the lowest denominator possible 8/2=4 18/2=9 which gets you your answer 4/9

please
help me im doing homework need help understanding

Answers

Answer:

-4,840.5

Step-by-step explanation:

-5000 is negative already and then you are working with 5/10's aka 1/2 so -4,840.5 would be the most logical answer!

The correct awnser is -4,840.5

The price of milk increased from $3.25 to $3.75. What is the percent of change for the price of milk to the nearest tenth?

Answers

Answer:

15 % increase

Step-by-step explanation:

there was a 15% increase !
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