Mathematics Middle School

Solve 7x – 9 = 28 + 4(x – 1).
A.x = 11
B.x = -11
C.x = -3

Answers

Answer 1

Answer:

x=11

Step-by-step explanation:

7x-9=28+4(x-1)

7x-9=28+4x-4

7x-9=24+4x

7x-9-4x=24

3x-9=24

3x=24+9

3x=33

x=33/3

x=11

Answer 2
7x -9= 28 + 4x-4

7x -9=24+4x

7x-9+9=24+9+4x

7x- 4x= 33 + 4x-4x

3x/3=33/3

X=11

Hope this helps!

Related Questions

What is the Inverse Operation of a Square Root ?

Answers

Answer:

The inverse is squaring a number

Step-by-step explanation:

i hope this helps

Power is the result of multiplying two numbers together. The inverse operation of a square root is a square.

What is power?

Power is the result of multiplying two numbers together. Power is typically expressed by a base number and an exponent. The base number indicates the number being multiplied. The exponent, which is a little number printed above and to the right of the base number, indicates the number of times the base number is multiplied.

The radical is the symbol that is used to represent the root in the expression n√x. When the value of n in this radical is 2, then it is known as the square root.

The inverse operation of a square root is a square, which means that the expression is needed to be multiplied by itself.

Hence, The inverse operation of a square root is a square.

Learn more about Power here:

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(03.04 LC) EXPLAIN!!!!!!
The sum of two numbers is 52. The greater number is 4 more than the smaller number. Which equation can be used to solve for the smaller number? (5 points)

Select one:
a. x − (x + 4) = 52
b. x + (x + 4) = 52
c. x(x + 4) = 52
d. x(x − 4) = 52

Answers

Should be B

Because if it were C or D it would be the product and not the sum
b

if the smaller number is 4 more it can be represented as x+4 and then you add x to the greater number to get 52 which is why the equation is x+(x+4)=52

After several weeks of working at the grocery store, Mark has been able to put $790 into his savings account. After he withdrawals $300 for new tires, he decides to start putting 15% of his weekly earnings back into his savings account.

How many whole weeks will it take Mark to restore his savings account to at least $790?

weeks

Answers

Answer: 490

Step-by-step explanation:

Tanya wants to earn enough money to buy a new Tigers shirt. So far she has earned $20, which is 50% of the money she needs to buy the shirt. How much does the shirt cost?

(Hint: It may be useful to draw a picture.)

The shirt costs ?
dollars.

Answers

The shirt would cost a total of $ 40

Answer:

I think the shirt cost 40 dollars cause 50% of 40 is 20

Step-by-step explanation:

helppppp..............

Answers

Answer:

B

Step-by-step explanation:

I am not sure if this correct since I used my notes.

Answer:

Yeah I think its B too.

Step-by-step explanation:

please help will give BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST for correct answer!!!!!!!!!!!!!

Answers

Answer:

its 25in

Step-by-step explanation:

because its not half way its over and no why it could be under hope this helps

24 inches because 18+6=24

178·37−37·78
Plz find in binary
If not able: Say no solution.

Answers

3700 will be your answer trust me

Please help me in a hurry

Answers

Answer:

1049.05

Step-by-step explanation:

Answer:

1049.05

Step-by-step explanation:

PLEASE HELP!!!!! AHHHH IM BAD AT MATH!!!!

Answers

Dosent make since sorry

I'll give brainlest for THE RIGHT answer.

Answers

30 kilometers per hour

3 part question

DIRECTIONS: Find the first 5 terms and the term requested. I wrote it in a word doc to you can see it better. plz dont answer if you dont know it. Its algebra 1 level work. Its arithmetic sequences. plz i need it ill give brainliest to the first person with correct answers.

Answers

Answer:

HI

Step-by-step explanation:

This is the last oneeee

Answers

Answer:

D

Step-by-step explanation:

It is first rotated 90 degrees clockwise

Then it is translated 6 units up and 4 units to the right

what is 1 2/3 as a whole number

Answers

Answer:

14 (rounded) ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

Answer:

its 14 (rounded)

Step-by-step explanation:

yes

Please answer! Correct answers get brainiest.

Answers

Answer:

7/5 y --> y+ 2/5y

0.68y --> y - 0.32y

3/5y --> y - 2/5y

1.32y --> y+ 0.32y

Step-by-step explanation:

Pretend there is a 1 in front of each y that doesn't have a number (coefficient) in front of it. 1 = 5/5, and then just solve for the fraction expressions.

7/5y —> y+2/5y
0.68y —> y-0.32y
3/5y —> y-2/5y
1.32y —> y+0.32y

Giving brainliest!
What is 15 divided by 16?
And how do i turn it into a decimal?
Im really struggling with this, need help ASAP

Answers

Answer:

PLS MARK ME BRAINLIEST

Step-by-step explanation:

0.9375

All you have to do is plug it into a calculator. That's really the best way to do it. Just put 15 and then the division symbol and then 16. The solution is 0.9375

What is the range of the following function?

Answers

The range is the X of the points so its (-2,1)

The following shows the process a student used to determine the number of yards in 3,218 meters.

(1 mile = 1,609 meters)
(1 mile = 1,760 yards)

Step 1: 1,609 meters is being multiplied by conversion factor 1 mile over 3,218 meters equals 0.5 mile

Step 2: 0.5 mile is being multiplied by conversion factor 1760 yards over 1 mile equals 880 yards

Step 3: 880 yards

What was the error made in this conversion?

The 1 mile and 3,218 meters in Step 1 should be switched.
The 1,609 meters and the 3,218 meters in Step 1 should be switched.
The conversion factor should be added in Step 2 instead of being multiplied.
The conversion factor should be divided in Step 2 instead of being multiplied.

Answers

Answer:

Step-by-step explanation:3520

The rule that the Right of Occupancy is based on.


( native American studies)

Answers

Answer: thats right...

Step-by-step explanation:

Native American studies

Using no digits other than 5 and 8, make a 6-digit number, that has the properties below. If it is impossible, write so. Of course you may use each digit more than once.
A multiple of 5, but not a multiple of 15.
List all possible solutions.

Answers

Answer:

i think its impossible??

Step-by-step explanation:

Help!!! PLLLLEASE help me ASAP!!!!

Answers

1. One is 2
2. Two is 2
3. Three is 4
4. Four is 3

PLZ ANSWER

If y=2x-3 what is the value of x when y=1

-1
1
-2
2

Answers

Answer:

first thing you gotta do is substitute x with -1 then you do the work first you gotta know your order of operation which is PEMDAS what that stands for is perentice exponent multiplication division addition and subtraction so then what you do first is 2*-1+3 2*-1=-2+3=1 and that is the answer you are WELCOME.

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

If y = 1

2x - 3 = 1

Which means 2x must be 4, because we know 4 - 3 = 1

so x must be 2, because the answer has to be something that makes 4 when we times it by 2.

If p 0, and p + q = r, which statement about r is true?

a. |r| = |q|
b. r > 0
c. r |q|

Answers

Answer:

the answer is b

Step-by-step explanation:

because when u think about it and look at the equation you will see why.

the answer is b ... hope that helps u out :)

Chart and assignment above, any actual help is appreciated!! Eighth grade math :)


1. How many cars per day does Car Mart sell? How did you use the table to find this rate?
2. How many cars per day does Winston's sell? Explain how you found this rate.
3. Which dealership sells more cars per day? How many more?
4. Which dealership started with more cars? How many more cars did that dealership start with?
Explain how you found your answer.

Answers

1. Car Mart sell 11 cars per day.
You can use the table by looking at day 2 and day 3. You can see underneath it, it shows how many cars is left after that particular day. So from day 2, you have 43 cars left and day 3, you got 32 cars left. From 43 car to 32 car is losing 11 car. So each day the Car Mart sell 11 car.

2. First we know that after 3 days, Winston have 32 cars left and after 5 day, it has 12 cars left.
Here’s the chart that I made for Winston:
Each day, Winston’s sell 10 cars. (Lose 10 cars per day)

1. Car Mart sells 11 cars a day.

2. Winston's sells 10 cars per day.

3. Car Mart sells one more car per day.

4. Winston started with more cars.

What are lines and their slopes?

We know lines have various types of equations, the general type is

Ax + By + c = 0, and the equation of a line in slope-intercept form is

y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

Rate for Winston auto dealer is (32 - 12)/(3 - 5) = - 10.

Rate for cart mart is (32 - 43)/(3 - 2) = - 11.

Car Mart sells 11 cars a day.

Winston's sells 10 cars per day.

Car Mart sells more cars per day.

As cart mart has 43 crs left on the second day he must had 10 more cars on the starting day which is 53.

As Winston had 32 cars on the 3rd day it must had (32 + 11 + 11 ) = 54 cars on the started day so Winston started with more cars.

learn more about lines and slopes here :

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Will jumps rope at a rate of 86 jumps per minute. At this rate, what is the total number of times Will will jump in 15 minutes?

Answers

Answer:

1290 jumps

Step-by-step explanation:

86 jumps x 15 min = 1290 jumps

I'm slow ->-
The Garden Club is planting fruit trees in their school’s garden. There is one large tree that needs 5 pounds of fertilizer. The rest are newly planted trees that need ½ pound fertilizer each. How many new trees can the garden club plant if they have at most 25 pounds of fertilizer?

Answers

Answer:

50 small trees

Step-by-step explanation:

if a new tree is 1/2 and theres 25 you multiply it by 2 so the answer is 50 new trees can be planted

Help plz rlly need the answer

Answers

your slope is -1 because 1/-1 equals -1
Slope =Rise / run = y/x = -5/5 =-1

You have $50 to spend at the fair. Admission is $5 and tickets are $0.50 each. How many tickets can you buy? {Write an equation.}

Answers

Answer:

You can buy 90 tickets

Does:

1 -1
- ---- = ----
3 3

Answers

Hashjshzyzagsdhhsussbvagyabxhxhszjhxhxhxhxb zhzbsgs

How could i make this sentence longer
The rule of the Right of Occupancy is having a personal right and that right cannot be sold.

Answers

Answer:

It can be understood through the customary rule of the Right of Occupancy, that one's own personal, secluded and dignified right shall remain to be free from the act of being sold.

Step-by-step explanation:

Explain how the activity supports the skill.
The activity i chose is track and the skill it supports it speed can someone please explain how track supports the skill speed please!
RE-ASKED

Answers

Track teaches you to be able to achieve your best speed in one of the quickest ways possible. The activity supports the skill because the more mitochondria you have, the more energy you are able to produce during exercise, which will enable you to run with greater speeds. If track is done regularly, it increases the size of the mitochondria. Giving you more energy, which will generate more speed. ( Hope this helps! (: )
It’s what the other guy said :)
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