What is 8 - 4k = 40

Answers

Answer 1
8-4k=40
-4k=32
k=-8 is the answer
Answer 2
Let's solve your equation step-by-step.8−4k=40Step 1: Simplify both sides of the equation.8−4k=408+−4k=40−4k+8=40Step 2: Subtract 8 from both sides.−4k+8−8=40−8−4k=32Step 3: Divide both sides by -4.−4k−4=32−4k=−8Answer:k=−8




Related Questions

What is 2 and 5/14 divided by (2 and 5/8 times 1 and 3/7)?

Answers

(2 5/14) / (2 5/8 * 1 3/7)....turn them all into improper fractions
(33/14) / (21/8 * 10/7)
(33/14) / (105/28)...when dividing fractions, flip what u r dividing by, then multiply
33/14 * 28/105 = 132/210 reduces to 22/35 <==
Final answer:

To divide 2 and 5/14 by (2 and 5/8 times 1 and 3/7), convert the mixed numbers to improper fractions, multiply the fractions in the denominator and numerator separately, and then divide by multiplying by the reciprocal of the second fraction. The final answer is 44/5.

Explanation:

To divide 2 and 5/14 by (2 and 5/8 times 1 and 3/7), we first need to convert the mixed numbers into improper fractions. 2 and 5/14 can be written as 33/14, 2 and 5/8 can be written as 21/8, and 1 and 3/7 can be written as 10/7. Next, we can multiply the fractions in the denominator and the fractions in the numerator separately. So (2 and 5/8 times 1 and 3/7) becomes (21/8 times 10/7). This can be simplified to (105/8 times 10/7). We then multiply the numerators (105 * 10) and the denominators (8 * 7) resulting in 1050/56.

Now we can divide 33/14 by 1050/56. Division is the same as multiplying by the reciprocal of the second fraction. So 33/14 divided by 1050/56 is the same as 33/14 times 56/1050. We can simplify this by canceling common factors. After canceling, we are left with (33 * 8) / (2 * 15), which becomes 264/30. Finally, we can reduce this fraction to its simplest form by dividing the numerator and denominator by their greatest common factor, which is 6. So the final answer is 44/5.

Learn more about Dividing mixed numbers

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Trevon, Leah, and Beth are playing a computer game. Trevon scores -8. Beth’s score was 3/4 of trevons score, and Leah’s score was 1/4 of Beth’s score. What was Leah’s score

Answers

-8 = trevon

(3/4)-8 = beth
= -6

1/4[(3/4)-8] = leah
1/4(-6)
= -1.5

Answer:

[tex]-1.5[/tex]

Step-by-step explanation:

We have been given that Beth's score is 3/4 of Trevon's score.

[tex]\text{Beth's score}=-8\times \frac{3}{4}[/tex]

[tex]\text{Beth's score}=-2*3[/tex]

[tex]\text{Beth's score}=-6[/tex]

We are also told that Leah’s score was 1/4 of Beth’s score.

[tex]\text{Leah's score}=-6\times \frac{1}{4}[/tex]

[tex]\text{Leah's score}=-\frac{3}{2}[/tex]

[tex]\text{Leah's score}=-1.5[/tex]

Therefore, Leah score was [tex]-1.5[/tex].

The Nash family spent a total of $240 on a hotel room for 3 nights. Which equation can be used to find c, the average cost per night for the hotel room?

Answers

240 dollarsn for 3 nights so,

240=3x divide by 3 to isolate x
x=80 dollars per night

Answer:

240 divided by 3 = c

Step-by-step explanation:

Tricky...it is $240 for all 3 nights....not $240 per night.  So it is division NOT multiplication.

How many decimal places are in the product of 1.91 and 2.3?

Answers

When multiplying decimals, the number of decimal places are the combined total of numbers after the decimal with the 2 factors you are multiplying.
in 1.91, there are 2, and in 2.3, there is one.
2+1 is three,
so you would get 3 decimal points in the product.

The table represents some points on the graph of a linear function. What is the rate of change of y with respect to x for this function?

X | Y
-9 | 5
0 | 3
9 | 1

Answers

The given table is
 x   y
-9  5
 0  3
 9  1

The change in x is  9 - (-9) = 9 + 9 = 18
The corresponding change in y is 1 - 5 = -4

The rate of change of y with respect to x is
-4/18 = - 2/9
The slope of the graph verifies that the rate of change is negative.

Answer: -2/9

The graph of an inequality is an open circle around the number five with the line shaded to the right of five. Which inequality could this represent?

Answers

open circle...means there is no equal sign in the problem
shaded to the right....means it is greater then

x > 5 ....this is ur inequality

Tom used 5/8 yard of ribbon to tie weights on the tail of his kite. He cut the length of ribbon into equal pieces that were 1/12 yard long. How many pieces, each 1/12 yard long, did Tom cut from the 5/8 yard ribbon?

Answers

Final answer:

Tom was able to cut 7.5 pieces of ribbon that were 1/12 yard long from a total length of 5/8 yard, which normally rounds down to 7 full pieces.

Explanation:

Tom cut his 5/8 yard ribbon into pieces that were 1/12 yard long. To find out how many such pieces Tom could cut, you divide the total length of ribbon by the length of each piece:

Calculate how many 1/12 yard pieces are in one yard by dividing 1 by 1/12. This equals 12, which means there are 12 pieces of 1/12 yard in one yard.

Multiply 5/8 by 12 to find out how many 1/12 yard pieces are in 5/8 of a yard. (5/8) * 12 = 7.5

Therefore, Tom was able to cut 7.5 pieces of ribbon, each measuring 1/12 yard. Since you can't have half a piece of ribbon, we would round down to 7 pieces (the question remains if the leftover could form a full piece, but based on the initial information, it's assumed to not be a full piece).

m+2m+(2m+16)+(m-10)=150 please help me solve.

Answers

m=72+(-2m) is the answer to this problem
Well the answer is 5376.or at least I think.jyst multiply it

PLEASE HELP I WILL GIVE 50 POINTS
Mr. Rijo bought 49 bags of soil one week and 28 bags of soil the next week. Which expression correctly applies the distributive property to show equivalent expressions for the number of bags of soil he bought?
49 + 28 = 4(7 + 7)
49 + 28 = (7)(7) + (14)(2)
49 + 28 = (7)(14) + (7)(7)
49 + 28 = 7(7 + 4)

Answers

49 + 28 = 7(7+4) is the answer

Answer:

7

Step-by-step explanation:

In the expression 1/4 divided by 5/7, which of the following is the divisor

1/4

4

5/7

7

Answers

5/7 is the divisor because 1/4 is the dividend of the equation and the answer is the quotient

I got bored so i solved it :) = 7/20

Hope this helps!

Answer:

[tex]\frac{5}{7}[/tex]

Step-by-step explanation:

Given expression 1/4 divided by 5/7

For any division [tex]\frac{a}{b}[/tex]

'a' is the dividend and 'b' is the divisor

Denominator is the divisor

[tex]\frac{\frac{1}{4} }{\frac{5}{7}}[/tex]

Here, the denominator is 5/7

So the divisor is [tex]\frac{5}{7}[/tex]

four-fifths of a number minus two is greater than three-tenths of twice that number/7149414/48fd5230?utm_source=registration

Answers

Sorry, but your "/7149414/48fd5230?utm_source=registration" doesn't do anything for us.

Supposing that "Four-fifths of a number minus two is greater than three-tenths of twice that number," find the number.

(4/5)x - 2 > (3/10)(2x)

Mult. all terms by 10 to elim. fractions:

8x - 20 > 6x

Then 2x = 20, and x = 10.  Your answer should be    x > 10.  It's essential that you check this result, however, just in case the answer is x < 10.

Greta uses 3 cups of pasta for every 3/4 cup of sauce. How much pasta does she use per vip of sauce?

Answers

3/4 = 0.75
0.75 • 4 = 3 3 is the closest whole number

4•3= 12 cups of sauce

Paula weighed 65.5 kilograms before she started training she as lost 3500grams how much does she weigh

Answers

Hello!

We have the following data:

Paula weight (before training) = 65.5 kg
Weight lost by Paula (in training) = 3500 grams = 3.5 kg
Paula's weight (after training) =?

65.5 kg - 3.5 kg = 62 kg (Current weight)

1 kilogram = 100 grams

3500 / 1000 = 3.5 kilograms

65.5 - 3.5 = 62

she weighs 62 kilograms

Select the next two terms in the pattern. 0.4, 2, 10, 50, . . .

Answers

it is the multiplicity of 5, which means the next two terms is 250 and 1250

hope this helps

A veterinarian needs to know an animal's weight in kilograms. If 20 pounds is about 9 kilograms and a dog weighs 30 pounds, use a ratio table to find the dogs weight in kilograms.

Answers

the answer is 18 im pretty sure

Simone peeled 14 potatoes in 1/5 hour. At this rate, how many potatoes can Simone peel in one hour?

Answers

Do a proportion
First change 1/5 into a whole number first.Which is 1/5 times 60=12
Now do a proportion
14/12=x/60
12x=840
x=70
Simone can peel 70 potatoes in a hour.


he can peel 70 potatoes in one hour

math question down below

Answers

5(x + 30) 

x + 30 represents the number of minutes per day he practices
5 is the number of days he practices
so 5(x+30) = the total number of minutes he practices in 5 days

For example, if he practices the piano for 20 minutes per day and the violin for 30 minutes per day, he practices a total of 50 minutes per day. For 5 days that would be 5 x 50 = 250 minutes in 5 days.

Plug that into the equation
5(x+30) = 5(20+30) = 5(50) = 250 




-33 < -7n - 12 < -26

Answers

-33 < -7n - 12 < -26
First step is to add 12 to both sides.
-33 < -7n  < -26-21 < -7n < -14

Now divide both sides by -7.
3 < n < 2

Because you divided by a negative number though, you need to switch up the signs. Both the < will turn into >.
3 > n > 2

A bus seats 4 people in a row, and there are 12 rows. How many people would fit on 2 buses?

Answers

4 x 12 x 2 = 96 people on two buses
4*12=48
48*2=96

96 people

Naomi has earned$54 mowing lawns the past two days. She worked 2 1/2 hours yesterday and 4 1/4 hours today. If Naomi is paid the same ammount every hour she works, how much does she earn per hour? (show your work)

Answers

2.5 x + 4.25 x = 54

x = the # hours worked

solve for x

Answer:

Naomi earns $8 per hour.

Step-by-step explanation:

Naomi has earned$54 mowing lawns the past two days.

She worked 2.5 hours yesterday and 4.25 hours today.

Suppose she earns x dollars per hour and is paid the same amount every hour she works.

We get the equation;

[tex]2.5x+4.25x=54[/tex]

[tex]6.75x=54[/tex]

x = 8

Hence, she gets $8 per hour.

what fraction of £3.00 is 50p

Answers

One sixth. Good luck.
Recognize that 50p = £0.50.

Thus, the ratio 50p to £3.00   is the same as    £0.50                                                                                                                    ------------ = 1/6
                                                                             £3

Which expressions are equivalent to 4b?
Options:
b+2(b+2b)
3b+b
None of the above

Answers

3b+b because 3+1=4 just add b and replace 1 with b
b is the same as 1
3b is the same as 3
4b :     b + 2(b + 2b)     OR     3b + b

First option : 

b + 2(b + 2b)

Simplify.

b + 2b + 4b

Simplify.

3b + 4b

Simplify.

7b

So, the first option is INCORRECT.

Second option :

3b + b

Simplify.

4b

So, our second option is CORRECT.

3b + b

~Hope I helped!~

richard bought rolls for a bbq he bought 4 1/4 dozen wheat rolls and 5 2/3 snowflake rolls if 4 1/3 were eaten at the bbq how many dozen rolls does richard have left

Answers

Answer: Richard has 5 7/12 rolls left.

Step-by-step explanation:

Hi to answer this question, first, we have to sum the amount of rolls Richard bought for the bbq:

4 1/4 + 5 2/3 = 4 3/12 + 5 8/12 = 9 11/12

Finally we have to subtract the amount of rolls eaten at the bbq to the previous number.

9 11/12 - 4 1/3 = 9 11/12 - 4 4/12= 5 7/12  

So, Richard has 5 7/12 rolls left.

Feel free to ask for more if needed or if you did not understand something.

X+6y=29
2x-4y=-6
Solve for x in the first equation

Answers

Solve for x:
x + 6 y = 29 Subtract 6 y from both sides:
Answer:  x = 29 - 6 y
why did you add the second?

Final answer:

To solve for x in the equation X + 6y = 29, subtract 6y from both sides to isolate x, resulting in x = 29 - 6y. The solution for [tex]\( x \)[/tex] in the first equation is [tex]\( x = \frac{19}{2} \).[/tex]

Explanation:

To solve for [tex]\( x \)[/tex] in the first equation [tex]\( x + 6y = 29 \)[/tex], we can isolate [tex]\( x \)[/tex] by subtracting [tex]\( 6y \)[/tex] from both sides of the equation:

[tex]\[ x + 6y - 6y = 29 - 6y \][/tex]

[tex]\[ x = 29 - 6y \][/tex]

Now, we can substitute this expression for [tex]\( x \)[/tex] into the second equation [tex]\( 2x - 4y = -6 \):[/tex]

[tex]\[ 2(29 - 6y) - 4y = -6 \][/tex]

First, distribute the 2:

[tex]\[ 58 - 12y - 4y = -6 \][/tex]

Combine like terms:

[tex]\[ 58 - 16y = -6 \][/tex]

Next, isolate the term with [tex]\( y \)[/tex] by adding [tex]\( 16y \)[/tex] to both sides:

[tex]\[ 58 - 16y + 16y = -6 + 16y \][/tex]

[tex]\[ 58 = -6 + 16y \][/tex]

Now, isolate [tex]\( y \)[/tex]by subtracting 6 from both sides:

[tex]\[ 58 - 6 = 16y \][/tex]

[tex]\[ 52 = 16y \][/tex]

Finally, solve for [tex]\( y \)[/tex] by dividing both sides by 16:

[tex]\[ \frac{52}{16} = y \][/tex]

[tex]\[ y = \frac{13}{4} \][/tex]

Now that we have found the value of [tex]\( y \)[/tex], we can substitute it back into the expression we found for[tex]\( x \)[/tex]:

[tex]\[ x = 29 - 6\left(\frac{13}{4}\right) \][/tex]

[tex]\[ x = 29 - \frac{39}{2} \][/tex]

[tex]\[ x = \frac{58}{2} - \frac{39}{2} \][/tex]

[tex]\[ x = \frac{19}{2} \][/tex]

Therefore, the solution for [tex]\( x \)[/tex] in the first equation is [tex]\( x = \frac{19}{2} \).[/tex]

basking in the sun
swimming
increasing or decreasing activity level
These are all activities a cold-blooded reptile may do to maintain
A) homeostasis.
B) body weight.
C) peer dominance.
D) blood sugar levels.

Answers

A. Homeostasis (a maintained internal state), in this case, temperature

complete the table. then describe a pattern in the decimal forms o the fractions.

Answers

it's going down by five but I'm sure on the last one..but to help add a zero like if it 0.5 it would be 0.50 that should help.

What is the solution to the equation 1/6n =2?

Answers

divide 1 from both sides to get 6n=2 and 2/ 6 equals 1/3
1/6n=2 /*6   (multiply is by 6 to get rid of the denominator)
n=12

2/3 of 24 bananas is what

Answers

16

Hope this helped :)

two thirds of a number decreased by six is two. what is the number?

Answers

Answer:  The number is:  " 12 ". 

____________________________________
  Let "x" represent "the unknown number" (for which we wish to solve.

The expression:

[tex] \frac{2}{3}[/tex] x  − 6  =  2  ;   Solve for "x" ;  
_______________________________________________
Method 1) 

   Add "6" to EACH SIDE of the equation;
_______________________________________________
       →   [tex] \frac{2}{3}[/tex] x  − 6  + 6 =  2 + 6 ;

to get:

      →   [tex] \frac{2}{3}[/tex] x = 8 ;
______________________________________________
Multiply each side of the equation by "[tex] \frac{3}{2} [/tex]" ; to isolate "x" on one side of the equation ; and to solve for "x" ;
______________________________________________
     → [tex] \frac{3}{2} [/tex] * [tex] \frac{2}{3}[/tex] x = 8 * [tex] \frac{3}{2} [/tex] ;

       →  x = 8 * [tex] \frac{3}{2} [/tex] ;

                = [tex] \frac{8}{1} [/tex] * [tex] \frac{3}{2} [/tex] ;

                = [tex] \frac{8*3}{1*2} [/tex] ;
       
                = [tex] \frac{24}{2} [/tex] ;
 
                = 12 .
______________________________________________
  x =  12 .
______________________________________________
Method 2)
______________________________________________
[tex] \frac{2}{3}[/tex] x  − 6  =  2  ;   Solve for "x" ; 

   Add "6" to EACH SIDE of the equation;
_______________________________________________
       →   [tex] \frac{2}{3}[/tex] x  − 6  + 6 =  2 + 6 ;

to get:
      →   [tex] \frac{2}{3}[/tex] x = 8 ;
______________________________________________
Multiply each side of the equation by "3" ; to get rid of the "fraction" ;
               → 3 * [tex] \frac{2}{3}[/tex] x = 8 * 3  ;
               → [tex] \frac{3}{1} [/tex] * [tex] \frac{2}{3}[/tex] x = 8 * 3 ;
               → [tex] \frac{3*2}{1*3} [/tex]  x = 8 * 3 
               → [tex] \frac{6}{3}[/tex] x = 24 ; 

                → 2x = 24 ;

 →  Divide each side of the equation by "2" ; to isolate "x" on one side of the equation; & to solve for "x" : 
 
                    2x / 2 = 24 / 2  ;

                        x = 12 .
__________________________________________________
Method 3).
__________________________________________________
[tex] \frac{2}{3}[/tex] x  − 6  =  2  ;   Solve for "x" ;  
_______________________________________________
Add "6" to EACH SIDE of the equation;
_______________________________________________
       →   [tex] \frac{2}{3}[/tex] x  − 6  + 6 =  2 + 6 ;

to get:

      →   [tex] \frac{2}{3}[/tex] x = 8 ;
______________________________________________
Now, divide each side of the equation by " [tex] \frac{2}{3}[/tex] " ;
  to isolate "x" on one side of the equation; & to solve for "x" ;
___________________________________________________
{[tex] \frac{2}{3}[/tex] x }  /  {[tex] \frac{2}{3}[/tex]}  =  8 / {[tex] \frac{2}{3}[/tex]} ;

to get:  x =  8 / {[tex] \frac{2}{3}[/tex]} ;

                =  8 * ([tex] \frac{3}{2} [/tex] ;

                =  [tex] \frac{8}{1}[/tex]  *  [tex] \frac{3}{2}[/tex] ;

                =  [tex] \frac{8*3}{1*2} [/tex] ;

                =  [tex] \frac{24}{2} [/tex] ;

                = 12 
___________________________________________
                         x = 12 .
___________________________________________
NOTE:  Variant:  (in "Methods 2 & 3") :
___________________________________________
At the point where:
___________________________________________
 =  8 * ([tex] \frac{3}{2} [/tex]) ;

  =  [tex] \frac{8}{1}[/tex]  *  [tex] \frac{3}{2}[/tex] ;
__________________________________________
  We can cancel out the "2" to a "1" ; and we can cancel out the "8" to a "4" ;
__________________________________________
  {since: "8÷2 = 4" ; and since:  "2÷2 =1" } ;
__________________________________________
and we can rewrite the expression:
__________________________________________
 [tex] \frac{8}{1}[/tex]  *  [tex] \frac{3}{2}[/tex] ;
__________________________________________
as:   [tex] \frac{4}{1}[/tex]  *  [tex] \frac{3}{1}[/tex] ; 
__________________________________________
which equals:
__________________________________________
→  [tex] \frac{4*3}{1*1}[/tex] ; 

   =   [tex] \frac{12}{1} [/tex] ;

            =  12 .
__________________________________________
         x = 12
__________________________________________
Answer:  The number is:  " 12 ". 
__________________________________________

A number x plus 10 is more than 2

Answers

X+10>2. The simplified answer is x>-8
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