x - 9 = 21

What does x =

Answers

Answer 1

Answer:

x=30

Step-by-step explanation:

You have to isolate for x. This means you need to somehow get x on one side of the equation all alone. In this case it is x-9=21 which means some unknown number x with 9 subtracted from it is equal to 21. When we bring the -9 over to the other side to get the x all alone, we have to switch the sign of the -9 so it becomes +9. This means x=21+9, and if you add that you'll get 30!


Related Questions

Help plssss I’m really bad at math and I have no clue what I’m doing <3333 also remember you can choose more than 1

Answers

Answer:11111

Step-by-step explanation:

1

A deposit of $10,000 is made in a trust fund that pays 3.8% interest, compounbed quarterly. It is specified that the balance will be given to Abudu Charity after the money has earned interest for 40years. How much will the charity receive?

Answers

9514 1404 393

Answer:

  $45,395.39

Step-by-step explanation:

The formula for an amount earning compound interest is ...

  A = P(1 +r/n)^(nt)

where principal P is invested at annual rate r compounded n times per year for t years.

Using the given numbers, we have ...

  A = $10,000(1 +0.038/4)^(4·40) ≈ $45,395.39

The charity will receive $45,395.39.

I just put this Question so- yea

Answers

Answer:

the answer is 70

Step-by-step explanation:

its simple just BASIC =D

but at least its a win win you got yo answer i got my points GOOD DaY

Answer:

1680 ÷ 40320 = 24

Step-by-step explanation:

Find the median of the data.

35, 29, 21, 49, 13, 38, 40

Answers

Answer:

to sum it up put all of the numbers ers in order and it is the middle number

Answer:

13, 21, 29, (35) , 38, 40, 49

Step-by-step explanation:

The medium is the number in the middle in an assorted number line so do least from greatest and pick one out of the middle

what is the value of x in the equation 3(2x + 8) =0

Answers

Answer:

x=-4

Step-by-step explanation:

1. Distribute

3(2x+8)=0

6x+24=0

2. Subtract 24 from both sides.

6x+24=0

6x+24-24=0-24

3. Simplify

6x=-24

4. Divide both sides of the equation by the same term

6x=-24

[tex]\frac{6x}{6}[/tex] = [tex]\frac{-24}{6}[/tex]

5. Simplify

x=-4

And thats the answer.

I hope this helps        :)

PLEASE ANSWER FAST! What is the base of a 30-60-90 triangle with a height of 12 yd?

Answers

Answer:

side opposite 30° angle (shorter leg) = 6 cm

 

 side opposite 60° angle (longer leg) = 6√3 cm

Step-by-step explanation:

I'm not 100% sure if this is right but if its wrong i am so sorry.

Help As Soon As Possible .. Brainliest Will Be Given.

Answers

Answer:

b and d

Step-by-step explanation:

Answer:

b and d

Step-by-step explanation:

Frank weighs 160 pounds and is on a diet to gain 2 pounds a week so that he can make the football team. John weighs 208 pounds and is on a diet to lose 3 pounds a week so that he can be on the wrestling team in a lower weight class. If Frank and John can meet these goals with their diets, when will they weigh the same, and how much will they weigh at that time? (Hint: Solve for x and y and make sure you write a complete sentence for an answer)

Answers

Answer: If Frank and John can meet these goals with their diets , they will weigh same after 9.6 weeks and they will weigh 179.2 pounds.

Step-by-step explanation:

Let x = Number of weeks.

As per given question ,

Weight of Frank after x weeks = 160+2x (pounds)

Weight of John after x weeks = 208-3x (pounds)

When Weight of Frank= Weight of John

Weight of Frank after 9.6 weeks = 160+2(9.6) = 179.2 pounds

Weight of John after 9.6 weeks = 208-3(9.6)=179.2 pounds

Hence, If Frank and John can meet these goals with their diets , they will weigh same after 9.6 weeks and they will weigh 179.2 pounds.

Yui makes a list of the balances in her savings account at the end of each month. She notices that each month's total is 5% greater than the previous moth's total. She writes a recursive formula to describe the account balances. Which value should she use as the common ratio

Answers

1.05*prevous month total or

Starting balance * 1.05^n where n is the number of months

Answer:

the answer is C 1.05

Step-by-step explanation:

pls help for this question! no wrong answers pls

Answers

Answer:

41.29 cm²

Step-by-step explanation:

From the question,

Area of the shaded portion = Area of the circle - area of the square.

A' = πr²-L²...… Equation 1

Where A' = Area of the shade portion, r = radius of the circle, L = length of the square, π = pie

Given: r = 4 cm, L = 3 cm

Constant: π = 22/7.

Substitute these values into equation 1

A' = [(22/7)×4²]-3²

A' = 50.29-9

A' = 41.29 cm²

Hence the area of the shaded portion is 41.29 cm²

What is the volume, in cubic inches, of a rectangular prism with a height of 19 inches, a width of 11 inches, and a length of 4 inches?

Answers

Answer:

836

Step-by-step explanation:

4 times 19 times 11

if 3.142×110 = 345.62, why is the decimal point not infront of the 5?​

Answers

Answer:

It is not infront of the 5 because when mutiplying it goes above a whole number so the . has to move back.

Step-by-step explanation:

Answer:

It has to be in front of the 5 since you have to move the decimal 2 places to the right and it lands beside the 5

In a geometric sequence, the ratio between consecutive terms is?

Answers

In a geometric sequence, the ratio between consecutive terms is always the same.

Write a slope intercept equation for the following table can SOMEONE PLEASE answer

Answers

Answer:

Step-by-step explanation:

(-2, -3)  (-1, -1)

(-1 + 3)/(-1 + 2)= 2/1 = 2

y + 3 = 2(x + 2)

y + 3= 2x + 4

y = 2x + 1

i need help what is x?

Answers

Answer:

square root of 109

Step-by-step explanation:

Use the Pythagorean Theorem to find x. The equation is a^2+b^2=c^2. In this case, a=3, b=10, and c=x. Plug that into the equation to get 9+100=c^2. Simplify that to get 109=c^2. Then divide each side by squared to get square root of 109=c.

Hope this helps

Independent = cups of milk poured Dependent = Milk left in the gallon jug Independent = Milk left in the gallon jug Dependent = cups of milk poured

Answers

Answer:

Independent = Milk left in the gallon jug

Dependent = cups of milk poured

Step-by-step explanation:

In an experiment or a research, a variable is defined as the thing or a phenomenon that you are trying to found out or measure. Variables can be independent variable as well as the dependent variable.

Independent variable is the variable that the researcher or the experimenter can change or manipulate in the research. This variable does not depend on others and thus stands alone. Its value can be change or altered to find the changes in the dependent variables. They are used as treatment variables.

Whereas, the dependent variables are those variables that are dependent on the values of the independent variables. It is considered as the effect of the independent variable. An independent variable is often manipulated to measure the outcome in the dependent variable.

In the context, the cups of milk poured is the dependent variable and the independent variable is the amount of milk left in the jug.  

Figure A is a scale image of Figure B.

Answers

Answer:

x = 5.4

Step-by-step explanation:

Corresponding sides are in proportion, that is

[tex]\frac{x}{7.2}[/tex] = [tex]\frac{3}{4}[/tex] ( cross- multiply )

4x = 21.6 ( divide both sides by 4 )

x = 5.4

The perimeter of the square is 28 inches. Find the area of the shaded region, assuming that the curves are quarter arcs.

Answers

Answer:

Step-by-step explanation:

Work out the value of x.

Answers

Answer:

x = 20

Step-by-step explanation:

2x + 7x = 180

9x = 180

x = 20

determine which expression are equivalent to the expression -p(q+r+5)

Answers

Answer:5p-+q+r

Step-by-step explanation:

find the unknown angle mesure

Answers

Answer: 1=65° and 5=43

Step-by-step explanation:

Question 1:

Angles on a straight line always add up to 180°.

So to find the angle of x on the first question you have to do 180-115=65°

You would have to use this method for questions 2, 3 and 4 as well.

Question 5:

Right angles always add up to 90° so to work out what x is you would have to do 90-47=43

You would have to use this method for questions 6, 7 and 8.

Hope this helps :)

Jim and bill each invest $15,000 into savings accounts that earn 3.5% interest. Jims account earns simple interests and bills account earns compound interest. After 25 years, who will earn more interest and how much more will he earn.

Answers

Answer:

Bill will earn more interest

He will earn $ 20,448.67 from his investment

Step-by-step explanation:

Firstly let us calculate Jim's earnings based on simple interest

A = P(1 + rt)

Calculation:

First, converting R percent to r

a decimal

r = R/100 = 3.5%/100 = 0.035 per year.

Solving our equation:

A = 15000(1 + (0.035 × 25)) = 28125

A = $28,125.00

The total amount accrued, principal plus interest, from simple interest on a principal of $15,000.00 at a rate of 3.5% per year for 25 years is $28,125.00 for Jim

Now let's us calculate bill's investment based on compound interest

Equation

A = P(1 + r)^t

A=15000(1+0.035)^25

A=15000(1.035)^25

A=15000*2.36324498427

A = $ 35,448.67

We see that Bill will earn

$ 20,448.67 from his investment

Here are five sums. Use the distributive property to write each sum as a product with two factors. 2+7 5−10 −2^2 +++ 2−1/2

Answers

Question:

Here are five sums. Use the distributive property to write each sum as a product with two factors.

[tex](a)\ 2a + 7a[/tex]      [tex](b)\ 5z - 10[/tex]    [tex](c)\ c - c^2[/tex]      [tex](d)\ r + r+ r+ r[/tex]    [tex](e)\ 2x - \frac{1}{2}[/tex]

Answer:

[tex](a)\ 2a + 7a = 9a[/tex]

[tex](b)\ 5z - 10 = 5(z - 2)[/tex]

[tex](c)\ c - c^2 = c(1 - c)[/tex]

[tex](d)\ r + r + r + r = 4r[/tex]

[tex](e)\ 2x - \frac{1}{2} = \frac{1}{2}(4x - 1)[/tex]

Step-by-step explanation:

Required

Apply distributive property

[tex](a)\ 2a + 7a[/tex]      

Apply distributive property [Factor out a]

[tex]2a + 7a = a(2 + 7)[/tex]

[tex]2a + 7a = a(9)[/tex]

Open bracket

[tex]2a + 7a = a*9[/tex]

[tex]2a + 7a = 9a[/tex]

[tex](b)\ 5z - 10[/tex]    

Express 10 as 5 * 2

[tex]5z - 10 = 5z - 5*2[/tex]

Apply distributive property [Factor out 5]

[tex]5z - 10 = 5(z - 2)[/tex]

[tex](c)\ c - c^2[/tex]      

Express c as c * c

[tex]c - c^2 = c - c * c[/tex]

Apply distributive property [Factor out c]

[tex]c - c^2 = c(1 - c)[/tex]

[tex](d)\ r + r+ r+ r[/tex]    

Express r as r * 1

[tex]r + r + r + r = r * 1 + r * 1 + r * 1 + r *1[/tex]

Apply distributive property [Factor out 1]

[tex]r + r + r + r = r(1+1+1+1)[/tex]

[tex]r + r + r + r = r * 4[/tex]

[tex]r + r + r + r = 4r[/tex]

[tex](e)\ 2x - \frac{1}{2}[/tex]

Express 2x as 4x/2

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

Apply distributive property [Factor out 1/2]

[tex]2x - \frac{1}{2} = \frac{1}{2}(4x - 1)[/tex]

you will get brianliest​

Answers

Answer:

1.8

2.10

3.9

Step-by-step explanation:

LOl why are u asking this

Answer:

1 is 8

2 is 10

3 is 9

Step-by-step explanation:

basically ur dividing the fraction so its like if u cut parts of a singular slice of pizza

2. Which expression is equivalent to 5(n + 3) - 10? A. 5+1 +5+3 – 10 B. 5 • n + 5 + 3 - 10 C. 5. n + 5 • 3 – 10 D. 5 • n • 5 • 3 – 10​

Answers

Answer:

5n+5

Step-by-step explanation:

5(n+3)-10

5n+15-10

5n+5

Does someone have an answer

Answers

Answer:

for what

Step-by-step explanation:

helo?

Answer:

x = $11

Step-by-step explanation:

5x = $55

9x = $99

2x = $22

In order to find the relationship between x and y, all we have to do is divide y by the term.

                                                       $55 ÷ 5 = 11

                                                       $99 ÷ 9 = 11

                                                       $22 ÷ 2 = 11

                             Therefore, each ticket sold is $11, or x = $11

Why shouldn’t you expect to take a year to pay off a credit card charge?

Answers

depending on interest it could be doubled if not more.

write an inequality to show the relationship between -3 and -7​

Answers

Answer:

-3 > -7.

Step-by-step explanation:

-3 degrees is cold but its warmer ( higher) that -7 degrees.

-3 > -7.

hii please help i’ll give brainliest

Answers

Answer:

The first one. 9/x

HELP ME I WILL BRAINLIST YOU ​

Answers

Answer:

A

Step-by-step explanation:

Because Im doing test corrections now :(

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