-140 = -2(8r + 6) sorry prob just a few more questions i think

Answers

Answer 1

Answer:

r=8

Step-by-step explanation:

so first distribute -2

so you get -140=-16r-12 then add 12 to both sides to get -16r by itself

so you have -128=-16r divide both sides by -16

the - cancel each other out so you get 8=r

hope this helps


Related Questions

Subtract – 7x + 6 from – 2x^2 + 9x-2

Answers

The answer is -2x^2-16x+8

Answer:-2x^2+16x-8

Step-by-step explanation:

the other person subtracted backwards ‍♀️

Pleaseee help !!
If the temperature is predicted to be -1°F, but could be 10 degrees colder, what is the least
possible temperature?
А
-11°F
B
-6°F
с
-1°F
D
9°F

Answers

Answer:

-11°F

Step-by-step explanation:

when it is cold temperatures lower

-1°F-10°F= -11°F

Grace read 9 books in 3 months what was her rate of reading Books per month​

Answers

Answer:

3 books per month

Step-by-step explanation:

9 books ÷ 3 months = 3 books per month :)

3 books a month because 9/3 is 3 :)

help?? Thank u if you do help btw!

Answers

Answer:

10,000lbs

Step-by-step explanation:

There are 2000lbs in 1 ton

So

5 x 2000 = 10000lbs

Answer:

10,000 pounds is the the correct answer

Simplify for a = 3, b= -4 and c=-1.
16a - 3c + 5b =

Answers

Answer:

31

Step-by-step explanation:

16(3)-3(-1)+5(-4)

48+3-20

51-21

31

PLEASE HELP!!! i’ve been stuck on this for so long!!!

Determine the number of terms in the geometric series 2+8+32+...+2048

Answers

Answer:

6 terms

Step-by-step explanation:

we have

[tex]2+8+32+..+2048[/tex]

we need to identify a pattern so

from 2 to 8 what could have happened?

well you could have added 6 and get 8

so that means that to 8 you have to add 6 and get 32

WRONG

so adding is not an option

what else could have happened?

well you could have multiplied by 4 and get 8

so that means that to 8 you have to multiply by 4 and get 32

which is true

so the geometric series is

[tex]2+4(2)+4(4(2))+4(4(4(2)))+...+[/tex] what?

you can see that in the 2nd term we have 1 four, in the 3rd we have 2 fours

so we can conclude in the nth term we have n-1 fours

so the formula is

[tex]2+8+32+...+4^{n-1} *2[/tex]

so we need to determine when

[tex]4^{n-1}*2=2048[/tex]

[tex]4^{n-1}*2*\frac{1}{2} =2048*\frac{1}{2} \\\\4^{n-1}=1024[/tex]

if we factorize 4 as [tex]2^2[/tex] and 1024 as [tex]2^{10}[/tex]

we have

[tex](2^2)^{n-1}=2^{10}\\\\2^{2(n-1)}=2^{10}\\\\2^{2n-2}=2^{10}[/tex]

so we see that the bases are equal, that must mean the exponents are equal

[tex]2n-2=10\\\\2n=10+2\\\\2n=12\\\\n=6[/tex]

so there are 6 terms

Last year, Mrs. Sclair's annual salary was $88,441. This year she
received a raise and now earns $96,402 annually. She is paid weekly.
a. What was her weekly salary last year?
b. What is Mrs. Sclair's weekly salary this year?
c. On a weekly basis, how much more does Mrs. Sclair earn as a result
of her raise?

Answers

Answer:

A. she made $1,694.92 weekly last year

B.she makes $1,847.49 weekly this year

C. she makes $152.57 more weekly this year than ast year.

Step-by-step explanation:

a ) Her weekly salary last year is $1842

b ) Mrs Sinclair's weekly salary this year is $2008.375

c ) On a weekly basis, Mrs Sclair's earn as a result of her raise is $158.37

What is the salary?

The amount of money paid by any company to their employees on a weekly or monthly basis is called a salary.

Given that:

Last year, Mrs Sclair's annual salary was $88,441. This year sheReceived a raise and now earn $96,402 annually.

a ) Her weekly salary last year is $1842

Annual salary = $88441

Weekly salary = 88441 / 48 = $1842

b ) Mrs Sinclair's weekly salary this year is $2008.375

Annual salary = $ 96,402

Weekly salary = 96,402  / 48 = $2008.137

c ) On a weekly basis, Mrs Sclair's earn as a result of her raise is $158.37

=  2008.137  -  1842  

=  $158.37

Therefore Her weekly salary last year is $1842, Mrs Sinclair's weekly salary this year is $2008.375, On a weekly basis, Mrs Sclair's earn as a result of her raise is $158.37

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Find the coordinates
of A' given a dilation
of 2
A(3,-6), B(0,9), C(2,-1)

Answers

Find the coordinates of A’ given a dilation of 2
A(3,-6), B(0,9), C(2,-1)

A baseball travels at an average rate of speed of 5280 feet per minute. At this rate of speed, how many feet will the ball travel in 5 seconds? Select one: a. 88 b. 440 c. 1056 d. 63,360

Answers

Answer:

440

Step-by-step explanation:

3x + 1/2y = 3 and 6x - y = 2 (use elimination with multiplication to solve)

Answers

Answer:

i prefer substitution methon for this one

i really prefer try using that

Which of these is an action by a person who chooses immediate spending over
saving?

Taking the bus
Opening a savings account
Financing a brand-new car
O Setting 10 percent of each paycheck aside

Answers

financing a brand new car

Answer:

C. Financing a brand new Car

Step-by-step explanation:

Financing a brand new car means that someone takes out a car loan that has to be paid over time, and that is something a spender would do because they are not saving money

Please I need help !!

Answers

21 would be an outlier because if that statement was graft it would be way off and the range is between zero and four (hope that helped) sorry if wrong

24
Let f(x) = 3x - 2. Find f(-2). (1 point)
O 1) -6
2) -3
3) 3
4) 6

Answers

Answer:

f(-2) = - 8

Step-by-step explanation:

f(x) = 3x - 2

In order to find f(-2) , substitute the value of x that's - 2 into f (x) that is for every x in f (x) replace it with - 2

So we have

f(-2) = 3(-2) - 2

= - 6 - 2

We have the final answer as

f(-2) = - 8

Hope this helps you

The answer would be -8


What is the domain of the relation given by the ordered pairs?
(2,-1), (-4, 1), (-2,-1), (3,-3), (2,3)
O (-4,-2,2,3)
O (-3,-1, 1,3)
O(-4,-1, 1,3)
O (-3,-2,1,3)

Answers

Answer:

  {-4, -2, 2, 3}

Step-by-step explanation:

The domain is the set of first numbers in the pairs, so includes 2, -4, -2, 3, 2. When we write this as a set, we eliminate duplicates. Often, we list them in order: {-4, -2, 2, 3}

The point A (-10,-5) has undergone the transformation T3, -1. Which point is the preimage of A?
a. (-13, -6)
b. (-13, 4)
C. (-7,-6)
d. (-7, 4)
EA-2

Answers

Answer:

C. (-7, -6)

Step-by-step explanation:

-10+3=-7

-5+(-1)= -5-1= -6


Which numbers are irrational?
a. 11
b. Square root of 15
C. -14
d. 5/7
e. 9/4
f. 0.151155111555....

Answers

Answer:

the answer is b and f I believe

3. Write the number below in standard form: (3.N
one hundred three thousand, forty-seven

Answers

Answer:

103,047

I hope this helped.

Answer:

103,047

Step-by-step explanation:

good luck with any other questions

Use the expression you wrote to predict the number of dreams that include people you know out of 28

Answers

Answer:

the number of dreams that include people you know out of 28 is 21

Step-by-step explanation:

Here is the complete question:

It is believed that about [tex]\frac{3}{4}[/tex] of our dreams  involve people that we know.

So the expression to describe the number of  dreams that feature people you know if you have "d" dreams is:

[tex]\frac{3}{4} d[/tex]

Now using the above expression we can predict number of dreams that include people you know out of 28. Here 28 represents number of dreams i.e. "d". So expression becomes:

[tex]\frac{3}{4} (28)[/tex]

Now simplify the above expression:

[tex]\frac{3}{4} (28)[/tex] = [tex]\frac{3*28}{4}[/tex] = [tex]\frac{84}{4}[/tex] = [tex]21[/tex]

Hence the number of dreams that include people you know out of 28 is 21

What is the missing steph in solving the inequality 5 - 8x < 2x + 3

Answers

Answer:

x > 1/5

Step-by-step explanation:

5 - 8x < 2x + 3

-8x < 2x -2

-8x -2x < -2

-10x < -2

x > 1/5

List all the sets that the number -6 belongs to.

Answers

Answer:

Integers

Step-by-step explanation:

Simplify this algebraic expression.

z-4/4+8

Answers

Answer:

z+7

Step-by-step explanation:

use PEMDAS!

1. divide 4/4, which is 1. (z-1+8)

2. combine like terms! -1 and 8 are like terms, so add them together. (z+7)

3. after that, you have the answer!! z+7!!


Which of the following lines is parallel to x = 7? (2 points)
a. 3y = 7
b. y = 7
c. X = y
d. X = 4

Answers

b. x=4
bc on a graph x=7 is a straight vertical line going through 7 on the x-axis, so the only other parallel line possible is x=4, which is also a straight vertical line going through the x-axis.
d. x=4
example is attached

Review the graph of function h(x). Which point is on the graph of the inverse function h–1(x)?
A. (2, 4)
B. (0, one-half)
C. (0, 1)
D. (–5, 1)

Answers

Answer:

C

Step-by-step explanation:

Point (0, 1) is on the graph of the inverse function h⁻¹(x).

What is an Inverse Function?If f(x) is an original function with output y, then we can get inverse of the original function by putting y in the inverse function to obtain x.The domain of original function becomes the range of its inverse function and the range of the original function becomes the domain of its inverse function.

Given: The graph of function y = h(x).

According to the graph, the function is a straight line:

y-intercept is (c) = 2

Consider two points on the graph, y = h(x).

Let (x₁, y₁) = (0, 2) and (x₂, y₂) = (2, -2).

Now, the slope (m) of the function will be calculated as:

⇒ m = (y₂ - y₁) / (x₂ - x₁)

⇒ m = (-2 - 2) / (2 - 0)

m = -2

Now, with c = 2 and m = -2 the equation of a given line will be calculated as:

The general equation of line is:

⇒ y = mx + c

y = -2x + 2

∴  y = h(x) = -2x + 2 is the given equation of line.

Now to find the h⁻¹(x), we have to interchange the values of x and y from the function h(x) and then obtain the relation for the general equation of line.

h⁻¹(x) will be calculated as:

⇒ x = -2y + 2

⇒ x - 2 = -2y

y = (2 - x)/2

∴ y = h⁻¹(x) = (2 - x)/2

Now, we will find which point is on the graph of h⁻¹(x).

Option (A): (2, 4)

put, x = 2 in the equation y = (2 - x)/2

⇒ y = 0

⇒ (2, 0) ≠ (2, 4)

∴ (2, 4) is not the point on h⁻¹(x).

Option (B): (0, 1/2)

put x = 0 in the equation y = (2 - x)/2

⇒ y = 1

⇒ (0, 1) ≠ (0, 1/2)

∴ (0, 1/2) is not the point on h⁻¹(x).

Option (C): (0, 1)

put x = 0 in the equation y = (2 - x)/2

⇒ y = 1

⇒ (0, 1) = (0, 1)

(0, 1) is the point on h⁻¹(x).

Option (D): (–5, 1)

put x = -5 in the equation y = (2 - x)/2

⇒ y = 3.5

⇒ (-5, 3.5) ≠ (–5, 1)

∴ (–5, 1) is not the point on h⁻¹(x).

Therefore, the point on the graph of the inverse function of h⁻¹(x) is (0, 1).

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If 20% of a number is 720 what is the 50% of that same number

Answers

Answer:

1,800

Step-by-step explanation:

yes
use your numbers

Before a chemist can combine a solution with other liquids in a laboratory, the temperature of the solution must be between 39⁰ C and 52⁰C. The chemist places the solution in a warmer that raises the temperature 6.5⁰C per hour. If the temperature is originally 0⁰C, how long will it take to raise the temperature to the necessary range values

Answers

Answer: 6 hours

Step-by-step explanation:

6.5x = 39

6=x

12(a−4) simplified I am confused with this question

Answers

Answer:

-48

Step-by-step explanation:

Could someone please solve this and explain their answer? 2x+39<9

Answers

Step-by-step explanation:

i hope you understood....

The measure of the supplement of an angle is twice the measure of the angle. What is the measure of each angle?​

Answers

Answer:

120° and  60°

Step-by-step explanation:

Suplementary angles sum 180°

then:

a + b = 180°

b = 2a

then:

a + 2a = 180°

3a = 180°

a = 180/3

a = 60°

b = 2a

b = 2*60

b = 120°

Check:

120° + 60° = 180°

PLS HELP! THIS IS DUE IN 30 MINUTES!! I'LL GIVE BRAINLIEST AND 60 POINTS IN TOTAL IF U GET BRAINLIEST.

Answers

Answer:

Perimeter: 14a+2b

Tickets:7x+6

Step-by-step explanation:

Perimeter: Add all the functions together

Tickets: Subtract 15x+1 by 8x-5.

Solve for u.
M=1/6uh

Answers

Multiply both sides by 6:

6M = uh

Then divide both sides by h:

u = (6M)/h

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