After 4 new students joined a class, the class had 32 students. Which equation can be used to find n, the number of students in the class before the 4 new students joined? n A 32 Bn -4 = 32 C 4n = 32 Dn+ 4 = 32​

Answers

Answer 1

Answer: D

Step-by-step explanation: if 4 students joined ur adding to the class hope this helps :)

Answer 2

Answer:

The answer is D.


Related Questions

What is the first step to Solving Word Problems?

a. Check that your answer makes sense.

b. Identify what you're trying to find.

c. Solve the problem.

d. Read the problem carefully.

e. Make a plan?

Answers

D read problem carefully

Answer:

D

Step-by-step explanation:

You can't check to see if your answer makes sense if there is no answer. You can't identify what your trying to find if you don't know the question. If you just solve the problem then you will probably get a bad grade. If you make a plan you need to know what your doing first so reading the problem carefully is the right answer.

I need some help with MORE math if you could answer that would be great.

Answers

Answer:

bbbbbb

Step-by-step explanation:

:)

Answer:

D. [tex]\frac{81}{m^{7}}[/tex]

Step-by-step explanation:

[tex](3m^{-4})^{3}(3m^{5})[/tex]

[tex]\frac{81m^{5}}{m^{12}}[/tex]

[tex]\frac{81}{m^{7}}[/tex]

!!!I NEED THE ANSWER ASAP!!! First person to answer will get 30 points!!

You are painting your room. You mix 1/4 cup of red paint for every 1/2 cup of paint.

A.If you need to make 3 gallons of purple paint, how much red paint will you add?


B. How much blue paint would you need?



C. Make a ratio table to show the amounts of red and blue paint that can be added to make different amounts of purple paint.

Answers

Answer:

a- 2/5 + 1/4=.65 mixture of red and blue paint

(2/5) / .65 X 1.625=1 gallon of red paint

(1/4) / .65 X 1.625=5/8 gllaons of blue paint, because

1 + 5/8=1 5/8 gallons of purple paint.

b-1/10 + 2/5 + 1/4=.75 mixture of white, red and blue paint

(1/10) / .75 X 3/8= 1/20 gallons of white paint

(2/5) / .75 X 3/8=1/5 gallons of red paint

(1/4) / .75 X 3/8=1/8 gallons of blue paint, because

1/20 + 1/5 + 1/8=3/8 gallons of lighter purple paint.

Step-by-step explanation:





Estimate the volume

Answers

Answer:

Step-by-step explanation:

Well depends the shape

volume of a rectangular solid : V = length * width * height, or V = lwh.

volume of a triangular pyramid: V=13Ah

Volume of a cone: V=πr^2 h /3

etc..

Solve l5+2xl < 17
(I couldnt find the brackets soo, yea. THANKS!)

Answers

Answer:

X<6

Step-by-step explanation:

Subtract 5 to the other side, so 2x is by itself. 2x<17-5, which is reduced to 2x<12. Divide by 2 so x is by itself. x<6.

Answer:

-11 < x < 6

Step-by-step explanation:

EXAMPLE 6: Two trees outside the school have a height of 60 inches and 72
inches tall. How many feet are both trees?

Answers

Answer:

the first tree is 5ft and the second one is 6ft

Step-by-step explanation:

Soo like could u help me someone give me the answer but they for to explain or show the reasoning so plz help

Answers

SA formula= 2(wl+hl+hw)

= 2(4*10+4*10+4*4)

=192 cm^2

HELLP NOW I NEED ANSWER AND WORK/EXPLANATION!(Emily’s car broke down the weekend before she started a new job. She borrowed $880 from her parents, at an annual interest rate of 3%, to quickly pay for the car repairs. If Emily paid her parents a total of $893.20 in six months, how much simple interest did she pay?

Answers

Answer:

13.20 or 1.5%.

Step-by-step explanation:

Since Emily borrowed 880, you need to subtract 893.20 from 880. That equals 13.20. The percentage of interest is 1.5 because 6 months is half of a year and the annual interest rate is 3 percent.

Can someone help me answer these?? Pls I need this by tomorrow

Answers

Answer:

7/8= 0.875

7/20= 0.35

18/20= 0.9

7/8= 0.875

68/50= 1.36

25/20= 1.25

26/25= 1.04

11/10= 1.10

11/16= 0.6875

9/16= 0.5625

33/40= 0.825

23/40= 0.575

14/10= 1.4

29/25= 1.16

39/40= 0.975

Step-by-step explanation:

Answer:

.875, .35, .9, .875, 1.36, 1.25, 1.04, 1.1, .6875, .4375, .825, .575, 1.4, 1.16, .975

Step-by-step explanation:

Divide the nymeratir by the denominator- n÷ d= x

btw I did each rown going down

If 16 horses eat 5 stacks of hay in 35 days, how many horses can eat 4 stacks of hay in 8 days? Math question

Answers

Answer:

The number of horses that can eat 4 stacks of hay in 8 days = 56 horses

Step-by-step explanation:

The given parameters are;

The time it takes 16 horses to eat 5 stacks = 35 days

Therefore;

The time it takes 16 horses to eat 5/5 stacks (1 stack) = 35 days/5 = 7 days

The time it takes 16 horses to eat 1 stack of hay = 7 days

The time it takes 16 horses/16 to eat 1 stack of hay = 7 days × 16 = 112 days

Therefore;

The time it takes 1 horse to eat 1 stack of hay = 112 days

The time it takes 1 horse to eat 4 × 1 stack of hay = 112 days × 4 = 448 days

The time it takes 1 horse to eat 4 stacks of hay = 448 days

Therefore, given that (448 days)/(8 days/horse) = 56 horse, we have;

The number of horses that will eat 4 stacks of hay in 8 days = 56 horses.

6 Rebecca burns an average of 210 calories in 35 minutes of ballet.
Part A
How many calories does Rebecca burn per minute?
Show your work.
Rebecca burns 6 calories per minute.
Part B
Which equation models howmany calories, c, Rebecca burns in m minutes?
A
B
210c=
35/m
35m
C
DC6m
Part C
Does Rebecca burn more than 400 calories per hour? Explain.
c
6cm

Answers

Answer:

c=6m because if you divide it normally with no letters it will be she burns 6 calories per minute

6. Solve the following equation for y.
3x - 4y = 6

Answers

Answer:

3x−4y+−3x=6+−3x

−4y=−3x+6

Step 2: Divide both sides by -4.

−4y

−4

=

−3x+6

−4

y=

3

4

x+

−3

2

Step-by-step explanation:

Answer:

y = 0.75x - 1.5

Step-by-step explanation:

3x - 4y = 6

-4y = -3x + 6

y = 3/4x - 6/4

y = 0.75x - 1.5

hope this helps, pls mark brainliest :D

Find the value of 
[tex] log_{8}^{512} [/tex]
please help friends....​

Answers

Answer:

3

Step-by-step explanation:

log 8 512 = 8^ x=512. x=3

Hope this helps :D

the answer would be log=3

What is a graphical word that means the same as the letter "a" in
exponential functions?​

Answers

Answer:

Base of the function. Starting value

Step-by-step explanation:

1) There are seven pencils in the drawer. Mike placed nine more pencils in the drawer.
How many pencils are now there in all ?

Answers

Answer:16

Step-by-step explanation:

7+9= 16

Answer:

16

Step-by-step explanation:

emily is entering a bicycle race for charity. her mother pledges $0.40 for every 0.25 mile she bikes. if emily bikes 6 miles how much will her mother donate​

Answers

Answer:

$9.60

Step-by-step explanation:

0.40(6/0.25)

0.40(24)

9.6

Answer:

the correct answer is $2.40

Step-by-step explanation:

0.40= every 0.25miles

for 6 miles it will be 2.40 because u multiply 6 with 0.40 and u get the answer

please help me i will give you brainliest!

Answers

Answer:

the photo is un clear I can answer it but add a better photi

Answer:

y = [tex]\frac{1}{2}[/tex]x + 4

Step-by-step explanation:

y-intercept = 4

slope = [tex]\frac{1}{2}[/tex] (use rise over run to solve for slope)

x-intercept = -8

(The picture is a little blurry so this is the best I could make out of it)

Which of the following is the graph of f (x) = x²

Answers

Answer:

Step-by-step explanation:

Answer:

whichever one looks like a U opening upward. the bottom of the U should be at the point (0,0) where the x and y axis meet

I’m helping my brother with his homework and I’m confused. Would this be split into 1/2 for each pizza or 1/4 like shown in the photo?

Answers

Answer:

1/2

Step-by-step explanation:

1/2 because if you divide 2 pizzas into 4 then you can get 4 1/2s.

if you slice the pizza into fourths then each person will get 2/4rts and which is the same thing as 1/2 only 1/2 is simplified.

p + 0.4 = −6 Solve for p.

Answers

Answer:

q=-6.4

Step-by-step explanation:

If you need proof or don't understand I can edit it just tell me.

Jordan is running a race that is 13 miles long. From his training, he knows that it takes him 72 minutes for every 12 miles he runs and he runs each mile in the same amount of time.

How long will it take for Jordan to run the 13th mile in the race (assuming he runs at the same speed as the first 12 miles)?

Answers

Answer:

78 minutes

Step-by-step explanation:

72/12=6

6*13=78

Does anybody know what (20x30)+10 to the second power is?

Answers

Answer:

372,100.............

Answer:

[tex]372100[/tex]

Step-by-step explanation:

A number to the [tex]x[/tex] power represents [tex]x[/tex] amount of times the number is multiplied by itself. To the second power means that the number is multiplied by itself twice.

[tex][(20\times30)+10]^2 = 610^2[/tex] (first work on terms inside parentheses)

[tex]= 372100[/tex]  ([tex]610^2 = 610\times 610[/tex])

Hope this helps :)

Solve the system of equations by elimination.
2x - y + 3z=-1
x + 2y - 4z=-1
y – 2z=0

Answers

Answer:

x = -1, y = 2 and z = 1

Step-by-step explanation:

The given system of equations are :

2x - y + 3z= -1  ....(1)

x + 2y - 4z = -1  ......(2)

y – 2z = 0  .....(3)

Equation (3) can be written as :

y = 2z

Use y = 2z in equation (2)

x + 2(2z) - 4z = -1

x + 4z - 4z = -1

x = -1

Put the value of x in equation (1) :

-2 -y +3z = -1

-y+3z = 1 ....(4)

Adding equation (3) and (4)

y-2z+(-y+3z)=1

z = 1

Now put z = 1 in equation (4)

-y+3=1

-y = -2

y = 2

Hence, the values of x,y and z are -1, 2 and 1 respectively.

Identify the matrix transformation of ΔMNO, which has coordinates M(1, 3),N(5, 2), and O(3, −3), for a translation 2 units left and 4 units up. PLEASE ANSWER QUICK!!!

Answers

Answer:

The second one

Step-by-step explanation:

Plz help This is a very important thing I have to do and it depends 50% of my grade so please help...!

Answers

Answer:

A.B

Step-by-step explanation:

5 - sqrt1.35 =  ~3.8

A) 3 / sqrt2 = ~2.1

B) 5 / sqrt3 = ~2.9

C) 3 + 2sqrt2 = ~5.8

D) 4 + 8/sqrt50 = ~5.1

please help me answer this ASAP if u view it then u'll see the question properly
[tex] \frac{1 + \sqrt{3} }{ \sqrt{12} } [/tex]
i will give brainliest answer if it the correct answers ​

Answers

Answer:

1/6 sqrt(3) + 1/2

Step-by-step explanation:

(1 + sqrt(3))

------------------

sqrt(12)

Multiply the top and bottom by sqrt(12)

(1 + sqrt(3)) * sqrt(12)

------------------

sqrt(12)*sqrt(12)

sqrt(12) + sqrt(3) * sqrt(12)

------------------

12

Simplify

sqrt(4)sqrt(3) + 6

------------------------

12

2 sqrt(3) +6

--------------------

12

1/6 sqrt(3) + 1/2

In the diagram , A'B'C' is an image of ABC . Which rule describes this translation ?

Answers

Answer:

D is the answer

Step-by-step explanation:

5 units right and 3 units up

what is (2x+3)+(x+4)

Answers

Answer: 3x + 7

Step-by-step explanation:

Answer:

3+7

Step-by-step explanation:

Eliminate redundant parentheses

(2+3)+(+4)

2+3++4

Add the numbers

2+3++4    

2+7+

Combine like terms

2+7+      

3+7

Trey is buying a computer on sale. The original price was $1,200. If the sale price is ⅚ of the original price, how much did Trey pay for the computer?



Type the numerical answer only

Answers

Answer:

5/6 of $1,200 is $1,000

The answer is $1000

ps: dont add the ($) only numerical answer

What is the solution of 5/2x-7=3/4x+14

Answers

Answer:

x = 12

Step-by-step explanation:

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