Mathematics Middle School

PLEASE ANSWER QUICKLY!!! WILL GIVE BRAINLIEST

10n-7=-(-9n)-26
show work or explain, but please try to do it efficiently. thank you!!

Answers

Answer 1

Answer:

n = -19

Step-by-step explanation:

10n - 7 = -(-9n) - 26

Move all like terms to one side of the equation or the other.

-7 + 26 = -(-9n) - 10n

Combine all like terms.

19 = -(-9n) - 10n

Two minus signs = a positive

19 = 9n - 10

19 = -n

Divide by -1

-19 = n

Hope this helps!

Related Questions

279 sit-ups in 9 days. what is the unit rate?
A.13 sit-ups/day
B.27 sit-ups/day
C.31 sit-ups/day

Answers

C. 31 sit-ups/day -

The way you would get this answer is by dividing 279 by 9; 279/9 = 31.

Hope this helps!

Answer: C 31 sit-ups/day

Step-by-step explanation: This is because if you divide 279/9 it would give you how many situps you did in total of those 9 days each.

(03.01 MC)
Select True or False. (1 point)

The expression 4x − 2(5x − 1) is equivalent to the expression 2 + 6x.

Select one:
True
False

Answers

Answer:

I want to say that it is false but I'm not sure

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[tex]4x - 2(5x - 1) = 4x - 10x + 2 = \\ [/tex]

[tex] - 6x + 2[/tex]

Thus ; False

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

−34(x−3)−5=18(x−1)
x =?

Answers

Answer:

x=2.211538462

Step-by-step explanation:

-34x+102-5=18x-18

sub 5 from 102

-34x+97=18x-18

add 18 to both sides

-34x+115=18x

add 34x to both sides

115=52x

divide 52 from both sides

2.211538462=x

a car drove 92 km/h for 4 hours. How far did it travel?

Answers

Answer:

368 km

Explanation:

92 * 4 = 368

Answer:

368 km/h.

Step-by-step explanation:

Hey! Let's solve this problem.

First step: So, you are driving 92km/h for 4 hours, right? Key words are: km, hours, 4 and 92.

So, how would we find this out? All we need to do is multiply 4 x 92, and we get 368! But, make sure when you put your answer put the km/h, as if you don't you could possibly get it wrong.

2 X 6 ÷ 2 + 1 answer is supposed to be 4 but I don't know how to get to it​

Answers

Answer:

4

Step-by-step explanation:

2 + 1 = 3Plug 3 in: 2 × 6 ÷ 36 ÷ 3 = 2Plug 2 in: 2 × 2 = 4

*This is not supposed to be the way to solve it. You should never start with addition, but for this expression, they want you to.*

I hope this helps!

One Month Yareli made 3 withdrawals for $20 and 1 withdrawal for $80 from her account. How did the withdrawals change the amount in her account?

Answers

Answer:

$140

Step-by-step explanation:

3*20=60

80+60=140

Answer:

The withdrawals would be subtracted away from the account

Step-by-step explanation:

I will use x, as the unknown value for the amount of money left in Yareli's account.

Yareli made a total of 4 withdrawals, all adding up to the sum of $140 withdrawn from the account. So, in the equation, it would kind of look like this:

x - $140.

Find the slope of the line shown on the graph

Answers

Answer:

no slope

Step-by-step explanation:

The line is a vertical line.

A vertical line has no slope.

The slope is undefined because the all x values are the same

using a ruler how could you calculate the floor area of your classroom

Answers

Answer:

Measure the length of the room and then measure the width of the room. Then we multiply the two numbers to find the area.

Find the constant of proportionality and write an equation with this table

Answers

Answer:

the constant is 3

Step-by-step explanation:

2/1 divided by 2/3 = 2/1 times 3/2 when you do that you get 6/2 then simplify and you get 3

The answer should be 3 or the constant

What fraction of 8 is 2 1 /2 ?


Select all that apply.


Practice

A

2 1/ 2 ÷ 8


B

5 /2 × 1/ 8


C

8 ÷ 2 1 /2


D

? × 8 = 2 1/ 2

Answers

Answers are a b and d
The answer is B and D

Please help with this assignment!! It’s math, also zooming into the photo makes it look much clearer.

Answers

C thank me later.Welcome

One-third of a number yields twelve. Which equation could be used to find the number?

A 3n = 12
B n = 12
C n = -12
D 3n = -12

Answers

I think it is B
because it makes sense

a rental car agency charges $240 per week plus $0.25 per mile how many miles can you travel in one week for 475$ help

Answers

Answer:

940 miles

Step-by-step explanation:

You first want to Subtract 475 and 240 which equals 235. Then divide that by 0.25 and you get 940 miles.

Each table represents a proportional relationship. For each, find the constant of proportionality, and write an equation that represents the relationship

Answers

y=3.14x
hope this helpsss

Add.
1.234 + 123.4 =

Answers

1.234 + 123.4 = 124.634

6x3(4/2)+1
extra characters

Answers

Answer:37

Step-by-step explanation:

37 is the answer for this question

does the graph show a proportional relationship if so use the graph to find the constant of proportionality

Answers

Answer:

it is proportional. the constant rate should most likely be 33.3

Step-by-step explanation:

64 is 4 times the difference between 10 and a number

Answers

Answer: -6

Step-by-step explanation: 64=4(10-n)

Basically 10-x and then then the answer to that times 4=64

450 push-ups in 18 days
A.35 push-ups/day
B.25 push-ups/day
C.15 push-ups/day
D.45 push-ups/day

Answers

Answer:

B.

Step-by-step explanation:

To find the answer you would divide 450 push ups by 18. and that gives you 25 the number of push ups you did in 18 days.

The value of a stock increased 1 1/4 points Monday morning. On Monday afternoon, the value of the stock decreased 1 2/3 points. On Tuesday morning, the value increased 1 1/2 points. What is the change in the stock's value? for middle school
A. - (1/12)

B. 1/12

C. 1 1/1

D. 2 5/12

Answers

Answer:

11/1

Step-by-step explanation:

answer both please. i need help and its apart of my grade

Answers

the first one is 1/10 and the second one is -9/5

Answer: 9/10+(-4/5)= 1/10

             -2/5+(-7/5) =  -1 /4/5 or  -9/5

What is a simplified form of the expression 4(2a – 1) – 5a?
a+4
3a-4
-9a+4
13a-4

Answers

Answer:

3a-4.

Step-by-step explanation:

4(2a-1) --> 8a-4

8a-4-5a

8a-5a=3a

3a-4

Answer: a≓6.969819675
Explanation: Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

a+3/a+7-2*a-4/a^2+3*a-28-(2-a/4-a)=0

Step by step solution :

STEP
1
:

a
Simplify —
4
Equation at the end of step
1
:

3 4 a
((((((a+—)+7)-2a)-————)+3a)-28)-((2-—)-a) = 0
a (a2) 4
STEP
2
:
Rewriting the whole as an Equivalent Fraction

2.1 Subtracting a fraction from a whole

Rewrite the whole as a fraction using 4 as the denominator :

2 2 • 4
2 = — = —————
1 4
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

2 • 4 - (a) 8 - a
——————————— = —————
4 4
Equation at the end of step
2
:

3 4 (8-a)
((((((a+—)+7)-2a)-————)+3a)-28)-(—————-a) = 0
a (a2) 4
STEP
3
:
Rewriting the whole as an Equivalent Fraction

3.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 4 as the denominator :

a a • 4
a = — = —————
1 4
Adding fractions that have a common denominator :

3.2 Adding up the two equivalent fractions

(8-a) - (a • 4) 8 - 5a
——————————————— = ——————
4 4
Equation at the end of step
3
:

3 4 (8-5a)
((((((a+—)+7)-2a)-————)+3a)-28)-—————— = 0
a (a2) 4
STEP
4
:

4
Simplify ——
a2
Equation at the end of step
4
:

3 4 (8-5a)
((((((a+—)+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
5
:

3
Simplify —
a
Equation at the end of step
5
:

3 4 (8-5a)
((((((a+—)+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
6
:
Rewriting the whole as an Equivalent Fraction

6.1 Adding a fraction to a whole

Rewrite the whole as a fraction using a as the denominator :

a a • a
a = — = —————
1 a
Adding fractions that have a common denominator :

6.2 Adding up the two equivalent fractions

a • a + 3 a2 + 3
————————— = ——————
a a
Equation at the end of step
6
:

(a2+3) 4 (8-5a)
(((((——————+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
7
:
Rewriting the whole as an Equivalent Fraction

7.1 Adding a whole to a fraction

Rewrite the whole as a fraction using a as the denominator :

7 7 • a
7 = — = —————
1 a
Polynomial Roots Calculator :

7.2 Find roots (zeroes) of : F(a) = a2 + 3
Polynomial Roots Calculator is a set of methods aimed at finding values of a for which F(a)=0

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers a which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient

In this case, the Leading Coefficient is 1 and the Trailing Constant is 3.

The factor(s) are:

of the Leading Coefficient : 1
of the Trailing Constant : 1 ,3

The planet Venus is on average 2.5 * 10 ^ 7 kilometers from Earth. The planet Mars is on average 2.25 * 10 ^ 8 kilometers from Earth. When Venus, Earth, and Mars are aligned, what is the average distance from Venus to Mars?

Answers

Answer:

0.8? srry if im wrong

Which fraction is equivalent to2/6

3/7
3/9
3/12
3/8

Answers

Answer:

3/9

Step-by-step explanation:

2/6=1/3

3/9=1/3

3/9
I’m pretty sure that’s it. sorry if I’m wrong.

Sarah and her 4 friends share some cookies. If each person gets 3 cookies, how many cookies were shared?

Write a mathematical equation that represents this situation.

a. c/5 = 3

b. 5c =3

c. c/4 = 3

d. 4c = 3

Answers

Answer:

Step-by-step explanation:   it is d that is the right

Answer:

A. C/5=3

Step-by-step explanation:

There C number of cookies among 5 people therefore

You choose A (if you are wonder the amount of cookies is 15)

Point (x, y) is reflected across the y-axis. Which are the coordinates of its image? (-x, y) (-x, -y) (-y, -x) (x, -y)

Answers

the answer is -x,y since you flipping the point across the Y axis

Please answer this quick

Answers

Answer:

D

Step-by-step explanation:

to find volume its length × width × height. So 12×7×15 is 1,260

I kinda need this quick lol

−2x + 5 −1

b) x −6

d) x < −6

Answers

The answer wouldn’t be eathier of those it would be -2x+4 because 5-1 is 4 and that gives you -2x+4 and you can’t combine like terms
-2x+ 5 -1
-2x -5 -5
x-6 that’s should be the answer

Two customers took out bank loans.
• Carl took out a 3-year loan for $20,000 and paid 5.00% interest compounded annually
• Steven took out a 5-year loan for $20,000 and paid 3.00% interest compounded annually
What is the difference between the amounts of interest Carl and Steve paid for their loans?
A)
$32.98
B)
$40.09
$52.91
D)
$86.94

Answers

Answer:

a

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

which series of transformations will move the triangle in Quandrant 1 onto the similar triangle in Quandrant 3
A. reflection across th x-axis and translation 6 units up
B. translation 6 units down and reflection across the y-axis
C. rotation of 90 degrees clockwise and reflection across the y-axis
D. translation 6 units down and rotation of 9p degrees counterclockwise

Answers

It would be c I hope that helps
I think it’s C sorry if I’m wrong
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