Mathematics Middle School

If a/b + c/d are any two rational numbers, then what will be their sum?
A. ad+bc/bd
B. a+c/bd
C. ad−bc/b
D. a(d+c)/bd

Answers

Answer 1
I’m not sure, but I think the answer is A.

Related Questions

PLZZZZZZZZZZZZZZZZ HELP ME !!!!!!!!!!!!!!!!!!!!!!!!!!!

ravis received a letter from his bank saying that his checking account balance fell below zero. His account transaction log is shown below.


A. On which line did Travis make a mathematical error? Explain Travis’s mistake.
Show all your work and explanation in order to receive full points.







B. The bank charged Travis a $20 fee because his balance dropped below $0. He knows that he currently has an outstanding charge for $7.85 that he has not recorded yet. How much money will Travis have to deposit into his account so that the outstanding charge does not create another bank fee? Explain.
Show all your work and explanation in order to receive full points.

Answers

Answer:

maybe the 108-188 because he stayed in the positive amount of money when he should of gone negative its line 3 or 4

Step-by-step explanation:

In the diagram, CA and BA are extended as shown. Tell whether each statement is True or False.

Answers

false false true true false. i had to do this for math already

2. y= -3x+8 and 6x+2y= -10 pls help!! slove as (x,y)

Answers

X=-1
Y=11 lmk if I should change something
X is -2.6
Y is 3
Hope this helped:)))

Analyze the graph below and answer the question that follows.





Carefully study the chart above. In which countries are a majority of people Christians?

A.

Barbados only

B.

Barbados and Brazil only

C.

Barbados, the Dominican Republic, Brazil, and Mexico

D.

In none of the countries are a majority of people Christians.


Please select the best answer from the choices provided

A

B

C

D

Answers

Answer:

c

Explanation:

predator 3

The answer is c because it is 65%



) On average, about 240 people visit a local food pantry every day in search of
groceries. On an extremely cold day, visitors to the food pantry can be 175% of
the average amount. About how many visitors might go to the food pantry on an
extremely cold day? (2 points)

Answers

Answer:

420

Step-by-step explanation:

Answer 420
Hope this is right

Can someone help me with these questions. (Answer 1 or answer them all I don't care.)

Answers

The answer to the first one is 6.5

Answer:

1 is 6.5 2 is b 3 is A

Step-by-step explanation:

Sammy buys his clothes at SuperDuper Discount Store. On Saturday, he bought shoes regularly priced at $40 for 25% off, and a jacket regularly priced at $100 for 30% off. What is the total amount that he will have to pay? (Omit sales tax.)

Answers

you would have 10% chance

Step-by-step explanation:

I know, that's probably a lot to take in! :D

40 × 25% = 10

40 - 10 = 30

The final price of the shoes is $30.

100 × 30% = 30

100 - 30 = 70

The final price of the jacket is $70.

30 + 70 = 100

A N S W E R:

The total price of the items Sammy bought (no including sales tax) is $100.

6 ears of corn for $1.80. What was the cost per ear?
12 apples for $2.88. What was the cost per apple?
5 tomatoes for $3.10. What was the cost per tomato?

Answers

Answer:

$0.30 per ear of corn, $0.24 per apple, $0.62 per tomato

Step-by-step explanation:

As 6 ears of corn cost $1.80, 180 cents divided by 6 equals 30 cents per ear.

As 12 apples cost $2.88, 288 cents divided by 12 equals 24 cents per apple.

As 5 tomatoes cost $3.10, 310 divided by 5 equals 62 cents per tomato.

Hope the explanations help!

There are $0.30 per ear of corn, $0.24 per apple, and $0.62 per tomato. which are determined by the division operation.

What is the division operation?

In mathematics, divides left-hand operands into right-hand operands in the division operation. The primary purpose of the division is to generate equal groupings or to determine how many people are in each category after a fair distribution.

For example 4/2 = 2

As 6 ears of corn cost $1.80,

cost $1.80 divided by 6

The cost per ear = $0.30

As 12 apples cost $2.88,

cost $2.88 divided by 12

The cost per apple = $0.24

As 5 tomatoes cost $3.10,

cost $3.10 divided by 5

The cost per tomato = $0.62

Hence, there are $0.30 per ear of corn, $0.24 per apple, and $0.62 per tomato.

To learn more about the division operation click here :

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(b+13)/2 = 5b/1.5
solve for b using scale factor.
Guys I'm completely lost... Can you please show your work so I know how to get the answer for future problems like this!! ​

Answers

Doesn’t look middle school to me

Answer:

0

Step-by-step explanation:

(b+13)/2=5b/1.5

We move all terms to the left:

(b+13)/2-(5b/1.5)=0

We add all the numbers together, and all the variables

(b+13)/2-(+5b/1.5)=0

We get rid of parentheses

(b+13)/2-5b/1.5=0

This graph shows the solution to which inequality?

Answers

That would be C because that’s the only one that’s inequality.

Answer:

C

Step-by-step explanation:

How do you interpret statements that use function notation in terms of a context?

Answers


Function notation is the way a function is written. It is meant to be a precise way of giving information about the function without a rather lengthy written explanation. ... The f (x) notation is another way of representing the y-value in a function, y = f (x).

Answer:

Interpret complicated expressions in context, understanding the meaning of specific terms, factors, and coefficients. Interpret expressions that represent a quantity in terms of its context. Interpret parts of an expression, such as terms, factors, and coefficients.

Step-by-step explanation:

hope this is right good luck

Sam spins a spinner with 4 sections labeled 1/9, 1/6, and 1/3. What fraction is missing?

Answers

Answer:I’m guessing 1/12

Step-by-step explanation: because it looks like it’s skip counting by 3

Help!!!!! This is the last one.

Answers

Answer:

C. 12 pages

Step-by-step explanation:

Doreen can get done 2 pages in 5 minutes. there is 30 min in half an hour so 5÷30=6

6x2=12

sorry I am not The best in explaining.

i think it’s 6. because it’s 60 min / 5min = 12 / 2 = 6

you have 123,321 dollars less than me and you have 1,000,000. we go to a store to try to buy a house that cost 321,123. how much money do I have. do we have enough, or how much is missing?

Answers

It would be because you subtract 555,556

You are canning 40 cups of applesauce. You have 20 glass jars, each of which will hold 134 cups of applesauce. Choose the correct explanation(s) that explain why you do not have enough jars.

Answers

Answer:

You DO have enough jars! I do not understand!

Step-by-step explanation:

You are only canning 40 cups. This will be filled in less than one jar!

You do have enough cups

A basketball team practices their shooting. The function f(x) represents the number of baskets made during practice, where x is the number of players at the practice. Does a possible solution of (12, 36) make sense for this function? Explain your answer.
a. Yes. The input and output are both possible.
b. No. The input is not possible.
c. No. The output is not possible.
d. No. Neither the input nor output is possible.

Answers

C. No. The output is not possible

The one cost DVD is 16.98, and the cost of another DVD is 9.29. Ed estimated the cost of the two DVD to be about 27. Is his estimate higher or lower than the actual cost? Explain

Answers

Answer:

another DVD is $9.29. Ed estimated the cost of the two DVDs to be about $27. Is his estimate higher or lower than the actual cost? your answer is 21.

Step-by-step explanation:

brainliest please

Answer:

Higher

Step-by-step explanation:

16.98 + 9.29 = 26.27 < 27.00

26.27 is rounded to 26.10 or 26.00 so Ed's estimate is higher

Hope this helps

What is the equation of the line shown in the graph?



Drag and drop the expressions to write the equation of the line in slope-intercept form.

y=_+_

Answers

Y=2x+4 the slope is 2 because it has a rise of 2 and a run 1 which means it goes up 2 and goes to the right 1 and the y intercept is 4 which makes the equation y=2x+4
y=2x+4. i’m pretty sure

13-3/2X=37
??????????

Answers

Answer:

im pretty sure its x=-16

Answer:

X = −48

3

= −16

Step-by-step explanation:

Its right

PLLZZ HELP ME OUT WITH THIS!!!!


1. A driver’s elevation is -30 feet relative to sea level. She dives down 12 feet. What is the elevation after the dive?Show your work. (20 points)








2. Explain(In your own word) how to model -5+5+(-2) on the number line. (20 points)






3. How do you subtract an integer from another integer without using a number line ? Give an example. (20 points)





4.Solve following problems(Show your work for subtraction):(40 points)

(-1)+(-5)= b) (-1)+(9)= c)1-(-2)=







d) 19-(-19)= e) -87-(-87) f) 0-(-5)=

Answers

Answer:

for 1. -30 - 12 = -42

Step-by-step explanation:

She is at -30 feet then dives down 12 more

30+12=42

PLEASE HELP ASP

What is the quotient?

2 1/5 divided by - 1/10

-22

-11/50

11/50

22

Answers

Answer:

2 1/5 divided by -1/10 = -22

Step-by-step explanation:

Answer:

-22

Step-by-step explanation:

got it right on test

Write an addition equation that is represented by the model below.

Answers

Answer:

-2+5

Step-by-step explanation:

its 5 jumps from -2 to 3

The addition equation that is represented by the model  is-2+5

Since addiction is one of the mathematical operations. The addition of two numbers results in the total amount of the combined value.

We can see that its 5 jumps from -2 to 3

Since Integers are arranged at equal intervals along horizontal straight lines called number lines.

Thus number line can be used to represent every number in a series of endpoints of this line go on forever.

Also Number lines might be alternatively left empty or blank. A number ladder is a vertical number line.

The addition equation that is represented by the model can be written as;

-2+5

Learn more about number line here:

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PLZ help me if your question is good enough i will give you branliest

Answers

2:8 and no it will not change because the ratio remains the same, the only difference is they are adding more of each. However, dried fruit to sunflower seeds stays the same.

PLZZ HELP ME ONLY GIVE ME THE CORRECT ANSWER PLZZZ this due today !!!!HELPP DUE IN 30 MIN


1. The water level in Ricky Lake changes at an average of -7/16 inch every 3 years.
a. Based on the rate above, how much will the water level change after one year? Show your calculations and you can use the vertical number line to help you., using 0 as the original water level.
Show all your work and explanation in order to receive full points.




b. How much would the water level change over a 7-year period?

Show all your work and explanation in order to receive full point

C. When written in decimal form, is your answer to part (b) a repeating decimal or a terminating decimal? Justify your answer using long division.


Show all your work and explanation in order to receive full points.

Answers

Answer:

A: The answer is -.43. If you divide -7 by 16 to create a decimal, you would get -.43.

B: The answer is -3.06. You multiply -.43 by seven and you get -3.06.

C: It is not a repeating decimal because if you divide -3.06 by 7 you get -.43.

Step-by-step explanation:

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A stone is dropped off
the edge of a cliff, and it falls for 4.8s before striking
bottom. Approximately how far above the bottom is
the cliff edge, assuming zero air resistance?

Answers

Answer:

y=(1/2)at^2

y=(1/2)(9.8 m/s/s)(4.8 s)^2

y=60.025 m

Step-by-step explanation:

Sry if not right

Mr. Hernandez opened a flower shop. He took a random survey by asking every 5th customer to find out their favorite flower. Who is the sample?

all the customers
every 5th customer
all the flowers
all the people in the town

Answers

every 5th costumer i think

Answer:

sample: every 5th customer

Hope this helps!!!

Last week, Ellen bought 4 apples for $2.40. This week she bought 9 apples for $5.40. If the cost per apple remains the same, how many apples could she buy next week?

Answers

Answer:

$1.06

Step-by-step explanation:

I dont really understand the question but the price per apple is 0.6 or 0.60

The equation y = negative StartFraction 1 Over 20 EndFraction x + 10 represents the gallons of gasoline that remain in Michelle’s car after she drives x miles. Which graph represents this equation?
A graph titled Driving has total miles traveled on the x-axis and gallons of gasoline on the y-axis. A line goes through points (0, 10) and (40, 8).

A graph titled Driving has total miles traveled on the x-axis and gallons of gasoline on the y-axis. A line goes through points (0, 11) and (80, 8).

A graph titled Driving has total miles traveled on the x-axis and gallons of gasoline on the y-axis. A line goes through points (0, 12) and (125, 6).

A graph titled Driving has total miles traveled on the x-axis and gallons of gasoline on the y-axis. A line goes through points (0, 10) and (150, 0).

Answers

Answer:

A  (  it goes from x to 10 )

solving equations of different solution types help please

Answers

Do the work in parentheses first then you solve the rest

Will someone help with this math please

Answers

Answer:

b

Step-by-step explanation:

the answer to this math problem is b
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