3(21+n)=12 Please help

Answers

Answer 1
3 x 21= 63
63+3n=12
12-63=-51
3n=-51
-51/3=-17
n= -17

Answer 2

Answer:n=-17

Step-by-step explanation:


Related Questions

5 divided by what gets you 0.60

Answers

Answer:

Step-by-step explanation:

12

12, pls mark as brainliest!!!!



You have a carton of 48 Easter eggs left from the weekend. You check the weight of the
carton and it weighs 28 pounds. If you give your 5 brothers 11 of your eggs, how much
would their carton weigh?

Answers

Answer:

around 6 and a half pounds

14.6 is the geometric mean between a and 9. Find a to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

What is the image point of (1, 4) after a translation left 5 units and down 3 units?

Answers

Answer:

(-4,1)

Step-by-step explanation:

for x you do:

1 - 5 = -4

for y you do:

4 - 3 = 1

so it is (-4,1)

PLEASE HELP! IM ALMOST DONE WITH THIS ASSIGNMENT PLSSS HELPP ILL GIVE BRAINLIEST SHOW UR WORK


question: solve the solution using substitution.

Answers

Answer:

x = -3

y = -8

Step-by-step explanation:

2y = x - 13

3x = y - 1;  let y = 3x + 1

substitute to solve for 'x':

2(3x + 1) = x - 13

6x + 2 = x - 13

5x + 2 = -13

5x = -15

x = -3

solve for 'y':

3(-3) = y - 1

-9 = y - 1

-8 = y

Answer:

(-3,-8)

Step-by-step explanation:

Get one of the variables by themself.

3x = y-1

y = 3x+1

Plug that equation into the other one

2(3x+1) = x-13

Distribute the 2 to 3x+1

6x+2 = x-13

Combine like terms

6x+2 = x-13

-x       -x

5x+2 = x-13

    -2        -2

5x = -15

Divide by 5 on both sides

5x = -15

÷5   ÷5

x = -3

Find y

3(-3) = y-1

-9 = y-1

+1       +1

y = -8

y = 4x + 8; y = –x + 3

Answers

Answer:

y= -12

Step-by-step explanation:

4x+8 = -x+3 -> Find x by  using all information

5x=-5  -> Simplify

x=-1   -> Solve

y=-12  -> Plug in to find y

Oh, please help me out of this question, I got stuck on it.

Answers

X < 45

I am not sure if this is what the question is asking so sorry if It's not what it asked

What are the slope and y-intercept of the linear function
graphed to the left?

Answers

Answer:

Slope -1/2 y-intercept 1

Step-by-step explanation:

The line crosses through the y-axis at 1

By counting, the line goes down one and over two

The line has a downward slope resulting in a negative slope

Answer:

B

Step-by-step explanation:

slope: -1/2 ; y-intercept: 1

You see a silk shirt for $95 there is a 25% discount what is the discount

Answers

Answer:

71.25

Step-by-step explanation:

Answer:

I don't know sorry

maybe try looking it up

I really don't know I'm so sorry

Step-by-step explanation:

Plsssssssss help also I have one more of this questionn in the next page but only 10 points so I'mma have to earn some more first​

Answers

Answer:

3/4

brainliest plz

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

3994949494949494949494949

A baseball is hit from an initial height of 3 feet and reaches a maximum height of 403 feet. Which function could be used to model this situation, where is the height, in feet, after t seconds?

Answers

Answer:A. h(t) = -16(t - 403)^2 + 3

B. h(t) = -16(t - 5)^2 + 3

C. h(t) = -16(t - 3)^2 + 403

D. h(t) = -16(t - 5)^2 + 403

Step-by-step explanation:

A muffin recipe requires 1 teaspoon of
lemon zest. Maylene is going to make 11
of the recipe. How many teaspoons of
lemon zest will Maylene need?

Answers

Answer:

11

Step-by-step explanation:

11x1=11

Find the slope plllls I need help

Answers

Answer: 5 over 5

Step-by-step explanation:

Answer:

the slope is 5/4

find the mean of the data in the pictograph

Answers

Answer:

16 is the mean

Step-by-step explanation:

I gave you the answer, no problem..

HELP!!!!!!!!!!!!! PPPPPPLLLLLLLLLLLLllZZZZZZZZZZZZZZZZZZZZ

Answers

56.55 ok ok ok ok ok it made me add on letters

Answer:

56.54866776

Step-by-step explanation:

To find the circumference multiply the diameter of the circle with π (pi) or multiply the radius 2x with pi (π=3.14).

So18x π= 56.54866776

Hope this helps ^-^

(If u like it mark brainliest, plz)

what is the answer for a+(-5)-12

Answers

Answer:

a-17

Step-by-step explanation:

Simplify the expression.

You roll a 6-sided die. What is the P(roll a 2)?

a
3/6
b
1/6
c
2/6
d
4/6

Answers

Answer:

b; 1/6

Step-by-step explanation:

Please help me 30 points please help me

Answers

Answer:

y = + 1x - 4y

Step-by-step explanation:

This could be the wrong way of writing it but thats the pattern ❤

Answer:

Step-by-step explanation:

y = + 1x - 4y

m+24=41 How can you check that 17 is a​ solution?

Answers

Answer:

41-24=17

Step-by-step explanation:

If you subtract 41 and 24, m = the answer

Answer:

17

Step-by-step explanation:

You can check it's 17 if you subtract 24 and 41.

41 - 24 = 17

m=17

Hope this helped!

Taya is on the track team. For practice, she runs 2.5 miles each day. At the
end of 14 days, how many total miles will Taya run?

Answers

Answer:

35 miles

Step-by-step explanation:

Answer:

35 miles

Step-by-step explanation:

2.5 x 14

74% of 19 year old males are atleast 172 pounds , what percent of the males are not atleast 172 pounds?

Answers

Answer:

The percentage of males are not at least 172 pounds

P(X⁻ ≥ 172) = 0.26

Step-by-step explanation:

Step(i):-

Given that 74% of 19 -year -old males are at least 172 pounds

Let 'X' be a random variable in a binomial distribution

P( X≥172) = 74% = 0.74

we have to find that the percentage of males are not at least 172 pounds

Step(ii):-

The probability of males are not at least 172 pounds

P(X⁻≥172) = 1- P( X≥172)

                 = 1- 0.74

                 = 0.26

Final answer:-

The percentage of males are not at least 172 pounds

P(X⁻ ≥ 172) = 0.26

A pipe can fill a tank in 3 hours. A second pipe can fill the tank in 5 hours.
How long will it take to fill the tank with both pipes running at the same time?

Answers

Answer:

15 hours

Step-by-step explanation:

3: 3, 6, 9, 12, 15

5: 5, 10, 15, 20

15 is the lcm of 3 and 5

Answer:

15 hrs

Step-by-step explanation:

Time for One pipe = 3 hrs

Amount of tank it can fill in 1 hr = 1/3

Time for Second  pipe = 5 hrs

Amount of tank it can fill in 1 hr = 1/5

Tank they can fill together in 1 hr = 1/3 x 1/5= 1/15

Time it takes to fill full tank = 15/1

I hope im right!!

Please answer this question fast

Answers

Answer:

1 : 6

Step-by-step explanation:

From the question given above, the following data were obtained:

Radius (r) = 10 cm

Height (h) = 15 cm

Ratio of TSA and CSA =?

Next, we shall determine the total surface area (TSA) of the cylinder. This can be obtained as follow:

Radius (r) = 10 cm

Height (h) = 15 cm

Pi (π) = 3.14

Total surface area (TSA) of the cylinder =?

TSA = 2πr(r + H)

TSA = 2 × 3.14 × (10 + 15)

TSA = 6.28 × 25

TSA = 157 cm²

Next, we shall determine the curve surface area (CSA) of the cylinder. This can be obtained as follow:

Radius (r) = 10 cm

Height (h) = 15 cm

Pi (π) = 3.14

Curve surface area (CSA) of cylinder =?

CSA = 2πrh

CSA = 2 × 3.14 × 10 × 15

CSA = 942 cm²

Finally, we shall determine the ratio of the total surface area (TSA) and curve surface area (CSA) of the cylinder. This can be obtained as follow:

TSA = 157 cm²

CSA = 942 cm²

Ratio of TSA and CSA =?

TSA : CSA = 157 / 942

TSA : CSA = 1 / 6

TSA : CSA = 1 : 6

Thus, the ratio of the total surface area (TSA) and curve surface area (CSA) of the cylinder is 1 : 6

Find the value of 2.8 + 6.5

Answers

Answer:

Step-by-step explanation:

2.8 + 6.5 = 9.3

Answer:

9.3

Step-by-step explanation:

2.8+6.5=9.3

You'd use addition to solve this

Becca is painting a birdhouse (rectangular prism) that has a height of 13cm, a width of 5 cm, and a length of 8cm. How much paint will she need if she only uses 1 coat? 26 sq. cm 0418 sq. cm 0 208 sq. cm​

Answers

Answer:coo

Step-by-step explanation:Cooke.

The amount of paint which will Becca need to paint the birdhouse in 1 coat is 418 cm².

What is surface area?

Surface area of any solid or the 3 dimensional body is the area of each faces by which the solid body is enclosed.

The surface area of rectangular prism can be given as,

[tex]SA=2(wl+hl+hw)[/tex]

Here, (w) is the width, (h) is the height and (l) is the length of the prism.

Becca is painting a birdhouse. The shape of the birdhouse is similar to rectangular prism with dimensions as, height of 13cm, a width of 5 cm, and a length of 8cm.

Now Becca wants to paint this house using 1 coat. As this paint has to be cover each surface of the house. Thus the amount of total paint should be equal to the surface area of the house.

Here, the dimensions of house is as, height of 13cm, a width of 5 cm, and a length of 8cm. Therefore the surface area of it is,

[tex]SA=2(5\times8+13\times8+13\times5)\\SA=418\rm cm^2[/tex]

Hence, the amount of paint which will Becca need to paint the birdhouse in 1 coat is 418 cm².

Learn more about the surface area here:

https://brainly.com/question/20771646

Nathan invested $75,000 in an account paying an interest rate of 6.8% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take, to the nearest tenth of a year, for the value of the account to reach $182,800?​

Answers

Answer:

13. 5 years

Step-by-step explanation:

First, convert R percent to r a decimal

r = R/100

r = 6.8%/100

r = 0.068 per year,

Then, solve our equation for t

t = ln(A/P) / n[ln(1 + r/n)]

t = ln(182,800 / 75,000) / ( 1 × [ln(1 + 0.068/1)] )

t = 13.542 years

Summary:

The time required to get  a total amount of $ 182,800.00  from compound interest on a principal of $ 75,000.00  at an interest rate of 6.8% per year  and compounded 1 times per year  is 13.542 years. (about 13 years 7 months)

Answer: 13.4

Step-by-step explanation:

Delta Math Solution

1) Expand and simplify the following:
a)3(x squared plus 3x cubed - 2)​

Answers

Answer:

3x³ + x² - 2

Step-by-step explanation:

a) 3(x squared plus 3x cubed - 2)​

x squared = x²

3x cubed = 3x³

3(x squared plus 3x cubed - 2)​

= 3(x² + 3x³ - 2)

= 3x² + 9x³ - 6

Rearrange according to power

= 9x³ + 3x² - 6

When the expression is divided by 3, it is equivalent to

3x³ + x² - 2

Please help it's due in 1 hr and I don't understand;-;

Answers

Answer:

1. x=6 y=7

hope that helps!

write a numerical expression for the verbal expression
eighteen more than five

Answers

Answer:

5+8

Step-by-step explanation:

Can someone help please

Answers

Answer:

x ≈ 7.7

Step-by-step explanation:

Using Pythagoras' identity on the right triangle on the right side

let the third side be y , then

y² + 4² = 10²

y² + 16 = 100 ( subtract 16 from both sides )

y² = 84

Using Pythagoras' identity on the right triangle on the left side

x² + 5² = y²

x² + 25 = 84 ( subtract 25 from both sides )

x² = 59 ( take the square root of both sides )

x = [tex]\sqrt{59}[/tex] ≈ 7.7 ( to the nearest tenth )

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