Mathematics Middle School

Solve for x: -243 = -9(10 + x)


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Answers

Answer 1

Answer:

x = 17

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

-243 = -9(10 + x)

Step 2: Solve for x

Divide -9 on both sides:                    27 = 10 + xIsolate x:                                             17 = xRewrite:                                              x = 17

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x:                    -243 = -9(10 + 17)Add:                                     -243 = -9(27)Multiply:                               -243 = -243

Here we see that -243 does indeed equal -243.

∴ x = 17 is the solution to the equation.

Related Questions

HELP PLEASE! FINALSSS!
Brooke plays on her school's softball team. Last season she was at bat 500 times, and made a safe hit 28% of the time. How is 28% expressed as a fraction?
A. 28/500
B. 28/100
C. 28/50
D. 28/10

Answers

Answer:

A:28/500

Step-by-step explanation:

Yup 28/500.
See they could’ve went divide both by two and u get 14/250 and then again to get 7/125

Maysa made an error in her work on the following problem.
3.5 - 2.46 =1.16
Describe Maysa's error. Explain how you would use a model or place-value concepts to help Maysa build understanding. Give the correct answer in your explanation

Answers

Answer:

0.04

Step-by-step explanation:

Rewrite 3.5 as 3.50, with two decimal places, to match 2.46 and 1.16 in having two decimal places.

Then 3.5 - 2.46 = 1.16 becomes

3.50

-2.46

---------

 0.04 (answer)

0.04 that is the answer!

Which measurement is equivalent to 850 mg?

Answers

Answer:

0.00187393

Hope this helps! :)

Please mark me the Brainliest!

Richard took a math quiz last week. There were 100 problems on the quiz and Richard answered 30% of them correctly. How many problems did Richard get correct?

Answers

Answer: he got 30 of them correctly

Step-by-step explanation: because 30% of 100 is 30.

Answer:

Step-by-step explanation:

100×3=300÷100

he got 3 correct.

Amanda’s pool holds 500 gallons of water. Approximately how many liters does the pool hold? (1 gallon is about 3.8 liters.)

Answers

Number A 1900, just multiply 3.8 by 500

Answer:

A. 1,900

Step-by-step explanation:

Conversion factor: 1 US Fluid Gallon = 3.785411784 L

1) Liter = Gallon * 3.785411784

2) Liter = 500 * 3.785411784

3) Liter = 1892.706

Quadrilateral PRST is transformed according to the rule (x, y) → (x + 9, y +4) to create quadrilateral P'R'S'T'.



Which statement is true?
The side lengths of quadrilateral P'R'S'T' are twice the corresponding side lengths of quadrilateral PRST.
The angle measures of quadrilateral P'R'S'T' are equal to the corresponding angle measures of quadrilateral PRST.
The side lengths of quadrilateral P'R'S'T' are 9 units longer than the corresponding side lengths of quadrilateral PRST.
The angle measures of quadrilateral P'R'S'T' are greater than the corresponding angle measures of quadrilateral PRST.

Answers

Answer:

C. The angle measures of quadrilateral P’R′S’T′ are equal to the corresponding angle measures of quadrilateral PRST.

Step-by-step explanation:

i took the quiz

If I have a 12ft tree and my grandma has a 3 ft tree and used 25 ormoments how many should I use

Answers

Answer:

36 feet

Step-by-step explanation:

4 x 3 = 12 so you need to use 3 times the amount she used. So 36 feet of garland

PLS ASAP DUE IN 4 MINS

Answers

THE ANSWER IS A LOWEST SHE CAN SELL IS 400

Answer: It is a

Step-by-step explanation:

Subtract what she wants to raise by what she raised, and divide that by the cost of each tshirt.

I’m sorry no one helped earlier this was a pretty easy one

how much is 1=2+3x1 chum

Answers

Answer:

x=-1/3

Step-by-step explanation:

the answer is x=-1/3

Who Ever Can Make A Real World Scenario With The Pythagorean Theorem And The Solution Step By Step Gets Brainlyest

Answers

We cannot see the question of the screen good
23 goes in five of the square root many people 45 can make this 76

Which is the graph of the linear inequality 2x – 3y < 12?

A - On a coordinate plane, a solid straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the right of the line is shaded.
B - On a coordinate plane, a dashed straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the right of the line is shaded.
C - On a coordinate plane, a dashed straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the left of the line is shaded.
D - On a coordinate plane, a solid straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the left of the line is shaded.

Answers

The answer is C I hope I helped!
The answer would be c because of the equation and the way it is positioned on the plane.

help please i need to finish this today

Answers

b

Step-by-step explanation:

x

The answer is C. They are corresponding angles.

brainliest if right pls help

Answers

Answer:

C

Step-by-step explanation:

First of all -2-5= -7

It isn't (A) because (A) is saying that the beginning temperature was a postive number, which it wasn't The beginning temperature is -2, which is negative. So we can cross that off.

It isn't (B) because (B) is saying that you start off with -2 and then it gets warmer, and temperature adds up onto it. When you do -2 +5, you get 3, which is not the answer.

So, the answer is c

Proof: It starts of with negative 2, which is the first temperature. Then, it says decreased by 5, which is what is happening. 5 is getting subtracted from -2

So, the answer is C

Answer:

C

Step-by-step explanation:

-2-5

the minus sign infront of the two has to stay with the two so we would have -2°C the options we would be left with are b and c but since it says subtract 5 that would be a decreases not an increase so it would be decrease 5°C

25 × 13 = __________ twenty-fives. 49 × 11 = __________ elevens.

Answers

Answer:

I hope this helps. I don't quite know what you're looking for.

Step-by-step explanation:

25 x 13 = 325

325 divided by 25

= 13 twenty fifths.

49 x 11 = 539

539 divided by 11

= 49 elevenths

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Answers

Answer:

I think its 30 because if you add them together you get 29.825

Step-by-step explanation:

hope it helps

Answer:

30 miles

Step-by-step explanation:

A supermarket chain has 1,100 stores locations in all and 780 of them are in Florida The chain had total revenue of 33 billion last year. assuming the stores have equal revenue. which of the following was correct for last year


A.) The revenue for all of the stores in Florida 31$ million per store

B.) The revenue for all of the stores in Florida was $23.4 billion

C.) The revenue for all of the stores in Florida was $24 billion

D.) The revenue was $29 million per store

Answers

Answer:

the answer is b....i think

Step-by-step explanation:

The correct answer should be B

Choose the three values that are equivalent.
39/100
3.9
39%
0.39
3.9%
0.39%

Answers

Answer:

39/100

39%

0.39

Step-by-step explanation:

All of these are equivalent to each other! Any number over 100 can easily be transferred to a percentage value, so 39/100 is also equivalent to 39%. Considering that it is also by the hundredths, 0.39 is also an answer choice due to the conversion from fraction to decimal form. I hope that this helped! <3

Answer:

39/100, 39%, and 0.39

Step-by-step explanation:

Is this a function,why or why not

Answers

Answer:

Yes

Step-by-step explanation:

No. The input has more than one output

I need help asap!!!!!!!!!!!!!!!!!!!​

Answers

Answer:

18 centimeters.

Step-by-step explanation:

You have to multiply 27 by 2 = 54

Then 90 - 54 = 36

Then 36/2 = 18

The width is 18 centimeters.

Hope this helps ya!!

Answer:
18

Explanation:
27 x 2 = 54
90 - 54 = 36
36 / 2 = 18

The product of the ages of my three kids is 36, and my twin boys are older than my girl. How old are my kids?

Answers

Answer:

The only possible solution is 1, 6 & 6

Step-by-step explanation:

Hope it helped :)

She’s right I got the same answer

How would you explain 1.56+ (-3.89)=?

Answers

Answer:

-2.33

Step-by-step explanation:

If u have a negitive and a positive then you would take away 1.56 form the -3.89 and then you have your answer.

The answer is -2.33

PLEASE HELP ME!!!!!!!

Answers

Answer:

X < -4

Step-by-step explanation:

You would subtract thd 10. Then divide the -5. Also, you need to remember to flip the sign when you divide by a negative.

If u anserw these two ill give u 80 points!

Answers

Answer:

H

Step-by-step explanation:

cans of dog food        c, cans of dog food

over                        =        over

number of days             number of days in a week

Identify the slope and y - intercept of the relationship shown in the table below:

Answers

Answer:

Slope = 2/5

y-int = 1

Step-by-step explanation:

First, to find the slope of this line, just pick two random points:

(-3, 7) and (-2, 5) as an example for me.

Next, use the slope formula:

m = (y2-y1)/(x2-x1) It doesn't matter which points you want to choose as x2 and x1, just make sure that you're consistent!

m = (5 - 7)/(-2 -(-3))

m = 2/5

To find your y-int, just follow the pattern of the table so you can find what y is when x is 1.

When x is -1, y is 3

When x is 1, y is -1

The y value is going up (technically) by 2 for every x value.

Therefore, when x is 0, y is 1

So the y-int is 1

Slope is -2 and y intercept is 0

PLS HELP I NEED HELP REAL BAD
PLS PUT LEGIT ANSWERS NO ANSWERS THAT SAY HI OR SOMETHING ELSE

Answers

Answer:

b. 30 should be it

Step-by-step explanation:

please give brainliest

Answer:

45 (tip: find out the pattern of the graph like 90 + 25 is 105 so if you could have subtract 60 by 25, you would get 45.)

Which statement is true?

The Mississippi River in Iowa is at an elevation of 279 and Death Valley, in California is at an elevation of -282 feet. Which statement is true?

A |279| > |-282|
B |279| < |-282|
C 279 = 282
D 279 < -282

Answers

Answer:

B

Step-by-step explanation:

The symbol "|" means absolute value so for example |-12| is not equal to -12 it is equal to just 12.

A would be incorrect because |-282| is equal to 282 and 282 is greater than 279.

B would be correct because 279 is less than 282

C would be incorrect because 279 is not equal to 282, 279 is equal to 279.

D would be incorrect because -282 is not greater than 279

I am not absolutely positive but I am pretty sure your answer is b


PLEASE HELP! FINALSSSS!
Stanley won x raffle tickets at the school carnival. Regina won y raffle tickets. Daphne won image as many raffle tickets as Stanley. Keenan won 3 times as many raffle tickets as Regina.
Which expression represents the total number of raffle tickets Stanley, Regina, Daphne, and Keenan have all together?
A. x − 1/2x + y − 3y
B. 3y − y + x − 1/2x
C. x + y + 1/2x + 3y
D. 3y + y − x + 1/2x

Answers

Answer:

The answer is c it's the best answer

can someone pls check my other question on health plsssss and nobody say sum like "idkkkk" help me if you actually can help me I'm sick of getting scammed on here :(

Answers

what was it? i’ll see if i know

Russell has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980, 35% are dated from 1980 to 2000, and the rest are dated after 2000.

How many pennies in Russell’s collection are dated after 2000?



Plz help, I think I'm overthinking it.

Answers

480 pennies.

25% are dated before 1980, therefore:
1200(total):100 = 12 (1%)
12(1%)x25 = 300 (25%)

35% are dated from 1980 to 2000, therefore:
12(1%)x35 = 420 (35%)

25% are dated before 1980, 35% are dated from 1980 to 2000 and the rest are dated after 2000.
25% + 35% = 60%.
300(25%) + 420(35%) = 720.
60% = 720.
100%-60% = 40%.
40% is the amount of pennies that are dated after 2000.

The total (100%) of the pennies is 1200.
We also know that 60% of the total (1200) is 720.

1200(100%) - 720(60%) = 480(40%).

Therefore, the amount of pennies dated after 2000 in Russell’s Collection is 480.

Rewrite the following equation into slope intercept form 3x - 4y = 20 and identify the slope and y - intercept.

Answers

y=3/4x+20 slope=3/4 y intercept= 20

y = (3/4)x - 5 is the equation in slope-intercept form.

The slope (m) is 3/4 The y-intercept (b) is -5

To rewrite the equation 3x - 4y = 20 into slope-intercept form (y = mx + b), where "m" represents the slope and "b" represents the y-intercept, we need to isolate "y."

Starting with the given equation:

3x - 4y = 20

First, we subtract 3x from both sides:

-4y = -3x + 20

Next, we divide the entire equation by -4 to solve for "y":

y = (3/4)x - 5

Now, we have the equation in slope-intercept form.

The slope (m) is 3/4, indicating that for every 1 unit increase in x, y increases by 3/4 units.

The y-intercept (b) is -5, representing the point (0, -5) where the line crosses the y-axis.

Learn more about equation here

https://brainly.com/question/29030604

#SPJ6

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