–15b + 2b − –7b = –12

Answers

Answer 1

Step-by-step explanation:

[tex]\tt{ -15b+2b-(-7b)= -12 }[/tex] ⠀

[tex]\tt{-15b+2b+7b=-12 }[/tex] ⠀

[tex]\tt{-15b+9b=-12 }[/tex] ⠀

[tex]\tt{ -6b=-12 }[/tex] ⠀

[tex]\tt{b=\dfrac{-12}{-6} }[/tex] ⠀

[tex]\tt{ b=2 }[/tex] ⠀

Answer 2

Answer:

b=2

Step-by-step explanation:

-15b+2b-(-7v)=-129b-15b=-12-6b=-12b=-12/-6b=2

Related Questions

10+5.50x=34+2.50x. what is x

Answers

Answer:

8

Step-by-step explanation:

10+5.50x=34+2.50x

-2.50x from each side

10+3x=34

-10 from each side

3x=24

divide both sides by 3

x=8

Which expression has the greatest value when n is equal to 4? A. 5n B. n + 30 C. 50 – n D. 80 ÷ n

Answers

Answer:

D.

Step-by-step explanation:

Because ang, pangalan ng nanay niya

Ay, MARITES... HASHYTTS

answer the following here

Answers

Answer:

hi

Step-by-step explanation:

Answer:

y=4 and boundary point

Step-by-step explanation:

DUE SOON!! easy middle school problem

Answers

Answer:

she made 36 lol

Step-by-step explanation:

90 divided by 2.5 =36

HAVE A NICE NIGHT!!!!! :))

if you understand this plz help

Answers

The answer is A. [tex]\frac{(x-2)(x+6)}{x-6}[/tex].

Which factor is a biotic factor of an ecosystem?
A)the bacteria that live in the intestine of a rabbit
B)the temperature of water in a stream
C)the rocks that provide cover for a rattlesnake
D)the amount of water vapor present in a rain forest
HELP PLSSS

Answers

Answer:

I would say b

Step-by-step explanation:

Answer:

The bacteria that live in the intestine of the rabbit (A)

Step-by-step explanation:

I did the test:

What is the equation of line l?

Answers

Answer:

the second one

Step-by-step explanation:

plz brailniest :)

btw, do you want an explanation?

A group of students entered the museum at 3:30 pm and came out at 5:15. how long were they in the museum ?

Answers

Answer:

1 hour and 45 minutes

Hope this helped, have a nice day! :)

As Josiah and lamond were traveling to there next cross country meet they followed their progress along on a map. the map showed a scale of one inch equaling 60 miles. their route's total length on the map is 2 1/2 inches long how far will the be traveling to the meet​

Answers

Answer:

150 miles

Step-by-step explanation:

2 1/2 = 2.5

60 * 2.5 = 150

Hence, the answer is 150 miles.

Please mark as Brainliest!!!

3x + 4y = 7 and 8x + 4y = 2
Are they parallel perpendicular or neither?

Answers

These equations that are neither parallel nor perpendicular.

As an estimation we are told £3 is €4.
Convert £24.10 to euros.
Give your answer rounded to 2 DP.

Answers

27.08 I used a money converter but at least it worked (I think)

Many fans stood on a street that was 15 feet deep on both sides and about ¾ of a mile long. How many fans were in the street? "Rule of thumb recommended"

Answers

Answer:

my answer would be 2500

Step-by-step explanation:

just a guess

Put these numbers in order from least to greatest 3.5, -1, 4.8, -0.5, -4.2, 0.5, -2.1, -3.5

Answers

Answer:

-4.2, -3.5, -2.1, -1, -0.5, 0.5, 3.5, 4.8

Step-by-step explanation:

Hopefully this helps.

A gumball machine has 130 red gumballs. If the red gumballs are 25% of the total number of gumballs, how many gumballs are in the gumball machine?
A. 520
B. 32.5
C. 105
D.155

Answers

Answer:

A

Step-by-step explanation:

100/25=4

130x4=520

the answer is A 520.

Clara simplifies (8 b minus 4 r) minus (2 b minus r) and says the result is 6 b minus 5 r. What error did Clara make?

Answers

Answer: Clara incorrectly combined the r coefficients. The correctly simplified expression is 6 b minus 3 r.

Step-by-step explanation: (8b-4r)-(2b-r)

Open the bracket

=8b-4r-2b+r

Collect the like terms and simplify

=8b-2b-4r+r

=6b-3r

Clara incorrectly combined the r coefficients. The correctly simplified expression is 6 b minus 3 r.

i took it on edulastic

I need the answer as quickly as possible, please.

Answers

Answer:

×^2-10× + 25

I'm not sure

Your Answer is : A.
x^2 + 10x + 25

The greatest value of any U.S. paper money ever printed is 10^5 dollars. What is this amount written in standard form?

Answers

Answer:

100000

Hope this helps


Can some plz tell me what y is ASAP

Answers

Answer:

y=4

Step-by-step explanation:

2y+5=4y-3

8=2y

4=y

Mai and Priya were on scooters. Mai traveled 15 meters in 6 seconds. Priya traveled 22 meters in 10 seconds. Who was moving FASTER?

Answers

Answer:

mai is faster

Step-by-step explanation:

because even though she on goes 15 meters in 6 seconds she would have 4 times the advantage because of the extra 4 seconds she has

What is the answer here and explain why.

Answers

Answer:

x = 8

Step-by-step explanation:

Given

- 4(- x + 8) = 0

- 4≠ 0, so

- x + 8 = 0 ( subtract 8 from both sides )

- x = - 8 ( multiply both sides by - 1 )

x = 8

Answer:

X=8

Step-by-step explanation:

GOOD LUCK!

What is the distance between point A and point B?
10
B
9
8
7
6
5
4
3
2
1
A
х
0 1 2 3 4 5 6 7 8 9 10
V 81
V 45
7
7.5

Answers

Answer:

[tex] \sqrt{45} [/tex]

Step-by-step explanation:

(5,9) and (2,3)

then by distance formula

[tex]d = \sqrt{{(x1 - x2)}^{2} + {(y1 - y2)}^{2} } [/tex]

d²=3²+6²

d²=9+36

d²=45

[tex]d = \sqrt{45 } [/tex]

Can someone please help me with this I’m being timed!!!! Just determine it solution, no solution , or infinitely many solution!!!!!

Answers

X=3 Y=7 -only one solution

5x+1.5y=-4 10x+3y=-8 -infinitely many solutions

2.5x+39y=18 2.5x+39y=38 -no solution

Plz helppp meee wallah I swear to god I will mark you as a brainliest and I will give you 20

Answers

Answer:

Step-by-step explanation:

Equation for the linear function has been given as,

y = 26 - 4x

For x = 1,

y = 26 - 4(1)

  = 26 - 4

  = 22

For x = 2,

y = 26 - 4(2)

  = 26 - 8

  = 18

For x = 3,

y = 26 - 4(3)

  = 26 - 12

  = 14

For x = 6,

y = 26 - 4(6)

  = 26 - 24

  = 2

Therefore, table for the function will be,

x               y

1              22  

2              18

3              14

6               2

Laura collects nickels and dimes she has a total of 47 nickels and dimes she calculated the value of the coins and found out she has $4.05 how many nickels and dimes does laura

Answers

Answer:

Number of dimes = 34

Number of nickels = 13

Step-by-step explanation:

Total number of coins = 47

Coins are in the form of nickels and dimes.

Value of a nickel = 5 cents

Value of a dime = 10 cents

Total value of coins = $4.05 or 405 cents

To find:

Number of nickels and dimes?

Solution:

Let number of nickels = [tex]x[/tex]

Money value of nickels = 5[tex]x[/tex]

Let number of dimes = [tex]y[/tex]

Money value of dimes = 10[tex]y[/tex]

Total value of coins = [tex]5x+10y[/tex]

This value is given as equal as 405.

As per question statement, the equations can be written as:

[tex]5x+10y = 405 ..... (1)\\x+ y = 47 ...... (2)[/tex]

Multiplying equation (2) with 5 and subtracting from equation (1):

[tex]10y - 5y = 405 - 235 \\\Rightarrow 5y = 170\\\Rightarrow y = 34[/tex]

Number of dimes = 34

Number of nickels  = 47 - 34 = 13

12-(2x4+1)
12(2x5)
12-10
2

It’s asking me if the students work was done correctly

Answers

No they should multiplied before adding

Answer:

1st they should multiply 2 and 4 first because you need to fallow order of operations you will get 8 then you add the 1 getting you 9 finally you subtracted 12 and 9 getting 3 so NO THE STUDENTS WORK WAS NOT DONE CORRECTLY

Which description best matches the system of equations?

Answers

Answer:

Consistent and Independent, I think so.....

Step-by-step explanation:

Answer:

Coincident

Step-by-step explanation:

Two lines that lie exactly on top of each other are called coincident.

[tex]4y+x=2[/tex] --------------(1)

is same as

[tex]8y+2x=4[/tex] -----------(2)

taking 2 common from equation (2)

[tex]4y+x=2[/tex]

which is same as equation (1)

Exit Ticket: At noon, a tank has a water depth of 9 in. After 3 hours, the depth was 8 inches. At 6pm, the depth was 7 inches. What is the initial value for the function? help will be appreciated.

Answers

Answer:

Step-by-step explanation:

The  straight line equation is:

y = m*x  + b     Where m is the slope of the line and b the intercept with   y-axis, in our case y is the depth of the tank and x (time in lapsus of 3 hours).

The slope m  =  ( y₂ -  y₁ ) / (x₂ - x₁)

We have point  A ( 3 , 8 )  and point  B ( 6 , 7 )

m  = ( 6 - 3 ) / (7 - 8 )  m = -3

We see that  each 3 hours time-depth decreases  1 in.

Then   to find the depth at the beginning of x-axis

At  noon     12   tank was  9 inches, three hours before at 9 in the morning the depth was 10 inches and:

9  in the morning   10

6  in the morning   11

3  in the midnight   12

12 in the night         13

Then 13 is the intercept with y-axis

then the equation is:

h = - 3*x + 13

Note x is time in lapsus  of 3 hours

Plz help ASAP need urgent helpppppp

Answers

Answer:

range

Step-by-step explanation:

NEED THIS RIGHT NOWW HELLPP PLEASE CLICK. WILL GIVE BRANLIEST


you gave 2/3 of your cookies away to the students in your math class, which was 24 cookies. How many cookies did you bake

Answers

Answer:

36

Step-by-step explanation:

24 divided by 2 is 12. 12=1/3. 12x3=36

Write an equation in slope intercept form with a slope of 1/4 and a y-intercept of 6

Answers

Answer:

y=1/4x+6

Step-by-step explanation:

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