Mathematics Middle School

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Answers

Answer 1

Answer: D

Explanation:

Answer 2

Answer:

D

Step-by-step explanation:

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Related Questions

(04.04 MC)

An oil company fills 1/12 of a tank in 1/3 of an hour. At this rate, which expression can be used to determine how long will it take for the tank to fill completely? (1 point)

Select one:
a. 1/12 ⋅ 3 hours
b. 1/3 ⋅ 12 hours
c. 1/3 ⋅ 1/12 hour
d. 3 ⋅ 12 hours

Answers

The answer is B 1/3 • 12 hours

the rectangular projection screen in the school auditorium is 5 times as long and 5 times as wide as the rectangular screen in the library. the screen in the library is 4 feet long with a perimeter of 14 feet.


what is the perimeter of the screen in the auditorium?

Answers

Answer:

Library: length 4, width 3 = 4(2)+3(2)=14

Take the length and width and multiply them by 5.

4*5=20 and 3*5=15

20(2)+15(2)= 70

The perimeter of the auditorium screen is 70.

Step-by-step explanation:

The answer is 70 ft.

We know that the perimeter of the screen in the library is 14 ft.

The formula for perimeter is length+width+length+width=perimeter

We are already given the length so it will be 4+w+4+w=14

4+4 equals 8 and 14-8 equals 6. We then divide 6 by 2 and we have the width.

Length: 4 ft.
Width: 3 ft.

The problem says the auditorium screen is 5 times bigger so we multiply

4 times 5 and 3 times 5

We now have 20 and 15

The problem asks for perimeter

There are four sides in a rectangle so it will be 20+15+20+15 equals 70 ft.

First right gets brainliest:)

Answers

First equation: x=-y+8
Second equation: on the picture

Examine the equation.

–3x + 18 = 7x

What could you do to isolate the variable term to one side of the equation?

Answers

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[tex] - 3x + 18 = 7x[/tex]

[tex]7x = - 3x + 18[/tex]

Add sides 3x

[tex] + 3x + 7x = + 3x - 3x + 18[/tex]

[tex]10x = 18[/tex]

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Answer:

10x + 18

You cancel out the lowest variable term to only have one variable term.

Step-by-step explanation:

-3x+3 then do 7x+3

10x + 18

You cancel out the lowest variable term to only have one variable term.

Tell me if it works.

Hope it helped.

Vicci designed a square tile in art class. Each corner of the square tile has a measure of 90 degrees.
Which equation could be used to find the measure of Angle x? ​

Answers

Answer:

360-270=x

x=90 degrees

Step-by-step explanation:

There are two ways i know of how you can do this

The first way:

Ok so lets add up all the angles we know

90+90+90=270

Now we subtract that from 360

360-270=90

And there we have it the measure of angle x is 90 degrees

The second way:

Ok lets name all the angles we know. Hypothetically we only know that one angle is 90.

measure of angle one is 90 degrees

So now we subtract that from 360

360-90=270

Now we divide that by three because there are only 4 angles and we know the measure of one of the angles

270/3=90

And there we have it the measure of angle x is 90 degrees

Math question. Please answer as quickly as possible. please and thank you

Answers

Answer:

7.5 (7 1/2)

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Hope I helped

Have a great day!!

Need helpp fastt plss will give brainliest to who is correct plss helpp

Answers

Answer:

$308, $294, large

Step-by-step explanation:

[tex]5.5 * 56 = 308[/tex]

[tex]10.5*28=294[/tex]

294 is less than 308, so the large is the better deal

Answer:

308, 77, large

Step-by-step explanation:

simple multiplication, and the larger one is more per cent.

WORd problem I hate word problems please help in image bellow

Answers

it depends on the type of animal they are caring for and how many. lizards and reptiles need more heat and won’t be healthy unless they receive that heat. cats and dogs shed fur and grow a winter coat so they were made for the fluctuation of the weather
Yes it could because some animals need the heat, so if they have those types of animals like for example lizard, hedgehog ( I know cuz I have one ) or maybe a tarantula then yes hope this helped!

simplify by combining like terms: 6.1a + 5.7b + 3a

Answers

Combine 6.1a and 3a
9.1a + 5.7b

Answer:

9.1a + 5.7b

Step-by-step explanation:

Original Equation:

6.1a + 5.7b + 3a = ?

Add 6.1a to 3a

9.1a

Plug this value back into the equation:

9.1a + 5.7b

Hope this helps :)

Please consider Brainliest :)

I like ice cream :D

The expression x^3/2 ∙ √x can be expressed in the form of, where the value of a is:

Answers

Answer:

what you crazy opssss wrong send ✌️

Yeah you can tehe omg got
Go g

Hey! How do I pick up a cat without hurts it's internal organs?

I reposted this twice by now and all I have gotten were point yoinkers

Answers

U pick it up by its belly and it may not affect him i think that’s what i do with my cat her names fuzzykitty

Answer:

Pick it up the regular way

Step-by-step explanation:

UwU

solve the equation using mental math n divide 9=9

Answers

Answer:

81

Step-by-step explanation:

When dividing these numbers, you would actually multiply them together because they are on different sides of the equals sign. You do this because whatever you do on one side, you'd do the opposite of to the other side.

Example:

2x + 3 = 9

You would subtract 3 from nine.

2x = 6

The you'd divide 6 by two, since you would multiply x by two.

x = 3

I NEED A DETAILED EXPLANATION OF HOW TO SOLVE THIS PLEASE OR JUST THE FORMULA
An employer uses the linear regression equation y = 0.18 x + 320.22 to predict the weekly salary, y, of an employee who sells x dollars worth of merchandise. Last week, Joaquin sold $1500 worth of merchandise. The same week, Alex earned $650. Using the regression equation, which is an accurate comparison?
Alex sold merchandise worth about $60 more than what Joaquin sold.
Joaquin sold merchandise worth about $60 more than what Joaquin sold.
Alex earned about $60 more than Joaquin did.
Joaquin earned about $60 more than Alex did.

Answers

Answer:

i need pointsssssssssss

Step-by-step explanation:

help me! will give brainliest!

Answers

Answer:

Step-by-step explanation:

the answer  is 1 by 4

we have to bracket of then plus and minus = minus

then we wil minus it and simplify it then we will get our answer

Daniel has $700 in his bank account. He plans on withdrawing $20 for gas each week. Write an equation to determine how much money he will have after, x, weeks. *

700 = x + 20y
y = 20x - 700
700 - 20y
y = -20x + 700

Answers

Answer: it might be b or c

the answer is number 1

Can someone please help me with this!!!

Answers

Answer:

Step-by-step explanation:

help please this is due soon!!!!! is the answers correct if not please say the right ones

Answers

To help you I need to see what part A and B was ......
We need to see part b

Can someone please help me ill give you brainliest

Answers

4/5•2/3=8/15 multiply the numerators and then the denominators

Let x be a positive integer, and define the integers n=x^2+2x+17 and d=2x+5. When dividing n by d, the quotient is x, and the remainder is 7. Find x.
Please don't answer unless you have the correct answer.

Answers

Sorry I spent a while thinking of this but I can’t get my finger on it

Answer:

x=2

Step-by-step explanation:

got the question wrong and the website told me the answer was x = 2 also the guy above me commented this. Shoulda listened to him :(

Which product is represented by the hundredths grid? A 10 by 10 grid is shown with 5 columns and 2 rows shaded that overlap. A. 0 . 5 × 0 . 02 = 0 . 01 B. 5 × 0 . 2 = 1 C. 0 . 5 × 0 . 2 = 0 . 1 D. 0 . 05 × 0 . 02 = 0 . 001 heeeeeeellllllllllllppppppppppp meeeeeeeeeeeeee

Answers

Answer:

its d

Step-by-step explanation:

because if u multiply L times W times H then u would get d

Bruno bought 96 pounds of sugar for his bakery. Every day he used the same amount of sugar to make bakery items. After 10 days, Bruno was left with 15.2 pounds of sugar. On average, how many pounds of sugar did Bruno use each day? (1 point)
a 5.60 pounds b 8.08 pounds c 11.12 pounds d 18.46 pounds

Answers

Answer:

9.6

Step-by-step explanation:

you divide 96 by 10

Answer:

The answer is B

Step-by-step explanation:

The answer is B. Since Bruna used 96 pounds of sugar each day you would have to use the equation 96-x(10 times)=15.2. You would have to plug in each answer to see if it would give you 15.2. I plugged in 5.60 and Bruno was left with too many pounds left over. 11.2 pounds each day would be to low. I then plugged in 8.08 and subtracted by 96 ten times and got the answer 15.2. I hope this helps.

I need answers ASAP

Mom was analyzing her family’s monthly budget. The monthly cost at the grocery store is $2,600. Sixty five percent of this amount was for grocery items (food). How much was spent on non grocery items at the grocery store?

Answer it with the equation and answer

Answers

Step-by-step explanation:

2600×65% = 2600×0.65 = $1690-spent on groceries

2600-1690 = $910-spent on non-groceries

Answer:

Step-by-step explanation:

2600*65%=1690 grocery

2600-1690=910 on non grocery

Helppp Will put brainliest

Answers

Answer:

The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.

Step-by-step explanation:

Hope this helps

what is the value of x in the equation: 3x-15=-18

Answers

Answer:

11

Step-by-step explanation:

3x-15=18

3x=18+15

x =33

3

x =11

Solve these problems with a explanation and show your work.Pretty please...

Answers

So we see Model/actual so for the first question, it would be n/48 = 1/40. 40n = 48. n = 1.2. Next question 4.3/n = 1/38. n = 4.3(38) = 163.4.
Ya what the other person said

Which of the following graphs represents a function?

Answers

b because it intersects once i think from what i can remember from middle school..
The first choice is the answer

.
A barrel contained 60 gallons of water. Water leaked out of the barrel at a rate of 5 gallons every 3 days.



At this rate, how many days did it take for all 60 gallons of water to leak out of the barrel?

Answers

It took 12 days for all the 60 gallons of water to leak out of the barrel. If you divide 60 by 5 you will get 12.

Answer:

36 days

Step-by-step explanation:

1.)60 / 5=12

2.)12*3=36

It will take 36 days for the barrel to empty out all 60 gallons of water

Hope this answers your question

John needs to write 2,146 online math questions in 45 weeks. John is estimating how many
questions he should write each week to meet the deadline. Which compatible numbers provide a better
estimate for the number of question he should write each week, 2,000 ÷ 50 or 2,000 ÷ 40? Why?



A 2,000 ÷ 50 is a better estimate because 50 weeks is more than the amount of time he actually has.



B 2,000 ÷ 50 is a better estimate because 2,000 is less than the amount of questions he actually needs to write.



C 2,000 ÷ 40 is a better estimate because 2,000 is less than the amount of questions he actually needs to write.



D 2,000 ÷ 40 is a better estimate because 40 weeks is less than the amount of time he actually has.

Answers

Answer:

Answer: 2,000 ÷ 50

Reason:

From the question, we are informed that John needs to write 2,146 online math questions in 45 weeks and that he is estimating how many questions he should write each week to meet the deadline.

The compatible numbers that provide a better estimate for the number of question he should write each week, is 2,000 ÷ 50. This is because rounding up of 2146 to the nearest thousand gives 2000. The number beside the thousand place is 2 and sinces it's not up to 5, the number becomes 2000. Likewise 45 to the nearest ten gives 50 since the number beside the ten is 5, therefore 1 will be added to 4 which becomes 5 and the number in the unit place is changed to 0, this makes the number become 50.

Therefore, the answer is 2000 ÷ 50.

55+(-72)-(-45)=x

what is x?

Answers

Answer: x=28

Step-by-step explanation:

55−72−(−45)=x

Step 1: Simplify both sides of the equation.

55−72−(−45)=x

55+−72+45=x

(55+−72+45)=x(Combine Like Terms)

28=x

28=x

Step 2: Flip the equation.

x=28

14 points if you can answer this

Answers

Answer:

-2

Step-by-step explanation:

you do -4+-6+2+6

Answer:

First, we must determine slope using the given points and pluging them in the slope formula*.

[tex]m = \frac{6 - (-6)}{2 - (-4)} = \frac{12}{6} = 2[/tex]

The slope is 2. You can prove this by using the graph.

Second, we plug in the slope we found, and one of the given points to solve for b using slope-intercept form**.

[tex]6 = 2(2) + b\\\\6 = 4 + b\\\\2 = b[/tex]

The y-intercept (or b) is 2. You can prove this by using the graph.

Finally, we can now create the equation of the line in slope-intercept form.

[tex]y = 2x + 3[/tex]

*Slope formula: y₂ - y₁/x₂ - x₁

**Slope-intercept form: y = mx + b

Hope this helps!

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