Solve for x:2/5 (x - 2) = 4x

Answer:

$1.10

Step-by-step explanation:

What we know:

Emilio has 2 quarters, 4 dimes, 3 nickels, and 5 pennies.

Quarters = 0.25 * 2

Dimes = 0.1 * 4

Nickels = 0.05 * 3

Pennies = 0.01 * 5

$0.50 + $0.40 + $0.15 + $0.05

$0.90 + $0.20 = $1.10 in total

Answer:

3

Step-by-step explanation:

Answer:

#1) 116= -4 + 5(-6 - 5a) : a = -6

#2) 8m + 4(4m -5) = -92 : m = -3

#3) -3(8 - 6x) = -96 : x = -4

#4) -126 = -3 (6+6x) : x = 6

#5) -8 -8(5a + 7)=-224 : a = 4

#6) -2(-5x -1) = 82 : x = 8

#7) -7(4x + 6) = -182​ :x = 5

Step-by-step explanation:

Remember: An equation must be equal at all times. This means if something is added to one side, it must also be added to the other. This holds true for addition, subtraction, division, and multiplication.

Problem 1:

116= -4 + 5(-6 - 5a)

move the -4 to the left side by adding 4 to both sides:

116 + 4 = -4 + 5(-6 - 5a) + 4

now 120 = 5(-6 - 5a)

divide both sides by 5:

120/5 = (5(-6 - 5a))/5

now 24 = -6 - 5a

move the -6 to the left side by adding 6 to both sides:

24 + 6 = -6 - 5a + 6

now 30 = - 5a

divide each side by -5:

(30)/-5 = (- 5a)/ -5

now -6 = a or a = -6

___________________________

Problem 2:

8m + 4(4m -5) = -92

begin by diving both sides by 4:

(8m + 4(4m -5))/4 = (-92)/4

now 2m + 4m - 5 = -23

move the -5 to the right side by adding 5 to both sides:

2m + 4m - 5 + 5 = -23 + 5

now 2m + 4m = -18

restate the left side and combine:

now 6m = -18

divide both sides by 6:

6m/6 = -18/6

so m = -3

___________________________

Problem 3:

-3(8 - 6x) = -96

divide both sides by - 3:

(-3(8 - 6x)) / -3 = -96/-3

now 8 - 6x = 32

move 8 to right side by subtracting 8 from both sides:

8 - 6x - 8 = 32 - 8

now -6x = 24

divide both sides by -6:

-6x/ -6 = 24/-6

x = -4

___________________________

Problem 4:

-126 = -3 (6+6x)

divide both sides by - 3:

-126/-3 = (-3 (6+6x)) /-3

now 42 = 6 + 6x

move 6 to left side by subtracting 6 from both sidesL

42 - 6 = 6 + 6x - 6

now 36 = 6x

divide both sides by 6:

36/6 = 6x/6

x = 6

___________________________

Problem 5:

-8 - 8(5a + 7)= -224

add 8 to both sides:

-8 - 8(5a + 7) + 8 = -224 + 8

now -8(5a + 7) = - 216

divide both sides by -8:

(- 8(5a + 7))/-8 = - 216 /-8

now 5a + 7 = 27

move 7 to right side by subtracting 7 from both sides:

5a + 7 - 7 = 27 - 7

now 5a = 20

divide both sides by 5:

5a/5 = 20/5

a = 4

___________________________

Problem 6:

-2(-5x -1) = 82

divide both sides by -2:

(-2(-5x -1))/-2 = 82/-2

now -5x -1 = -41

move -1 to right side by adding 1 to both sides:

-5x - 1 + 1= -41 + 1

now -5x = -40

divide both sides by -5:

-5x/-5 = -40/-5

x = 8

___________________________

Problem 7:

-7(4x + 6) = -182

divide both sides by -7:

(-7(4x + 6))/-7 = -182/-7

now 4x + 6 = 26

move 6 to right side by subtracting 6 from both sides:

4x + 6 - 6 = 26 - 6

now 4x = 20

divide both sides by 4:

4x/4 = 20/4

x = 5

Answer:

A

Step-by-step explanation:

Answer:

A is the answer

Answer

What are the answers?

Step-by-step explanation:

Answery

y =−4x+3

Step-by-step explanation:

The slope-intercept form of a linear equation is:

y =m x+b

Where  m is the slope and b

is the y-intercept value.

Substituting the values from the problem gives:

Answer:

You aren't supposed to add 3k

Step-by-step explanation:

3k is a positve number. So instead of adding you have to subtract to be able to move on. Correct way shown below. Once you get this step wrong your answer will also be wrong. At the end you also need to divide

19-2k= 3k-1

  -3k  -3k

19-5k= -1

-19      -19

 -5k= -20

-5/-5= -20/-5

    k=4

Answer:

the second one listed would be the answer you're looking for hon.

Step-by-step explanation:

Don't stay up too late, it is getting late. make sure you ace whatever you are doing and get good rest too.

Answer: the original slope is 3/2

The perpendicular slope is -2/3

Slope is rise/run

Step-by-step explanation: For the original slope get  

Find coordinates where the graphed line crosses the grid lines at the intersections. Here, (0,-2) and (2,1) Count the number of squares vertically. That is the rise. It is the difference in y-values. It is the numerator of the fraction. Then count the squares horizontally to get the run. That is the denominator of the fraction.

It is possible to use the expression [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex] to calculate the slope.

[tex]\frac{1-(-2)}{2-0} = 3/2[/tex]

To find the perpendicular slope, reverse the sign and use the reciprocal of the original fraction.

The reciprocal of 3/2 is 2/3. The opposite sign is negative. -2/3

Answer: x=3, p/2,-p/2

Step-by-step explanation:

it's hard to explain, so let me know if you really want me to explain.

Answer:

Option D: the x-intercept represents the minimum amount of photographs he must sell to pay for his photography lab.

Step-by-step explanation:

We are told that his monthly profit is given by the relation;

P = 32.5x - 845

Where x is number of pictures he needs.

We want to find what the x - intercept represents.

x intercept means that the y-value at that point is zero.

Thus, x-intercept means the profit is 0.

If profit is zero, it means his cost of operating his photography lab each month is equal to the amount of photographs he is able to sell.

Thus, it means that the x-intercept represents the minimum amount of photographs he must sell to pay for his photography lab monthly.

Answer:

m= -9

Step-by-step

this should work because (4+4)+(-9+1)=0 an

im sorry if this is wrong but im 99% sure this is right

i only put things in parenthesis to make things work better in my brain

Answer:

m = -2

Step-by-step explanation:

4 + 4{m + 1} = 0           {Subtract 4 form both sides}

   4{m + 1} = -4

   4m + 4 = -4             {Subtract 4 form both sides}  

         4m = -4 - 4

        4m  = -8             {Divide both sides by 4}

        m = -8/4

m = -2

Answer: The third one

Hi again:)

Step-by-step explanation:

Answer:

Pretty sure it would be 3.5 or 3.6 somewhere in that zone :)

Answer:

B) 421

Step-by-step explanation:

√2 + √-18

√2 + √9·-2

√2 + 3√-2  

(3 +1 )(√2 ·√-2) = 2i

4 · 2i

Answer:-1/6

Step-by-step explanation:

Answer:

slope is 6

Step-by-step explanation:

Answer:

y=3, x=15

Step-by-step explanation: hope this helps

Answer:

A.

Step-by-step explanation:

Find the scale by dividing 80 by 48 you get 1.6 then multiply by 60

Answer: A

Step-by-step explanation:

Step-by-step explanation:

hand towel is $5

bath towel is $9

Answer:

160,000 has three(3) perfect cube divisors namely;. 8, 8 and 125

Step-by-step explanation:

To determine how many perfect cube divisors 160,000 has;

We first need to highlight the factors of 160,000 as follows;

(2 × 2 × 2) × (2 × 2 × 2) × 2 × 2 × (5 × 5 × 5) × 5

As such, the product of numbers in each bracket yield a perfect cube; the expression above then becomes;

2 × 2 × 5 × 8 × 8 × 125.

Therefore, 160,000 has three(3) perfect cube divisors namely;. 8, 8 and 125

Answer:

I'm not sure, but I could kinda help

Step-by-step explanation:

to find the slope using a graph, using the formula :

[tex] \frac{y2 - y1}{x2 - x1} [/tex]

I hope this helps

Answer:

$15.90

Step-by-step explanation:

80 - 16.40 = 63.60

63.60÷4 =15.9

15.9 = $15.90

Answer:

The answer is 2 hours. I put in the answer the other person said and it was incorrect. So I tried another chose and it was 2 hours.

Answer:

The value of x is 27

Step-by-step explanation:

The sum of the exterior angles of the n-side polygon is 360°

Let us use this rule to solve the question

∵ The given polygon has 4 sides

∴ It has 4 exterior angles, one on each vertex

→ By using the rule above

∴ The sum of the 4 angles is 360°

∵ The exterior angles are (2x + 40)°, (4x)°, (x + 50)°, and (3x)°

→ Add them, then equate the sum by 360

∴ (2x + 40) + (4x) + (x + 50) + 3x = 360

→ Add the like terms in the left side

∵ (2x + 4x + x + 3x) + (40 + 50) = 360

∴ 10x + 90 = 360

→ Subtract 90 from both sides

∵ 10x + 90 - 90 = 360 - 90

∴ 10x = 270

→ Divide both sides by 10

∴ x = 27

∴ The value of x is 27

Answer:

2020 is not it

Step-by-step explanation:15

Answer: (-5,8)

Step-by-step explanation:

X: 1 + (-6) = -5

Y: 2+6 = 8

Answer:

22.33 feet tall / 267.96 inches tall

Step-by-step explanation:

The statue is 36 inches wide. If Chase made his model of the statue 16 inches wide, he decreased it by 20 inches. Now change the inches into feet. 36 inches would be 3 feet, 16 inches would be 1.33 feet and 20 inches would be 1.67 feet. 24ft - 1.67 = 22.33ft. Now change the answers to inches.  22.33ft will be 267.96 inches tall.

The value of the expression is 130.

Here,

The values are given as;

w = 6 and x = 10

We have to find the value of expression 5w + 10x.

What is Substitution method?

The algebraic method to solve simultaneous linear equation is called Substitution method.

Now,

The values are given as;

w = 6 and x = 10

Substitute this values in given expression, we get;

5w + 10x = 5*6 + 10*10

              = 30 + 100

              = 130.

Therefore, The value of the expression is 130.

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The number of weeks that they cat treats will train out is 27 weeks.

From the information given, the total grams will be:

= 200 + (2.5 × 1000)

= 200 + 2500

= 2700 grams.

Then he uses about 100 grams of cat treats every week, the number of weeks will be:

= 2700 / 100

= 27

There'll be 27 weeks.

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The largest value of x that would make buying the individual card less expensive than buying the package is 57.

The total cost of buying the individual thankyou cards is the product of the cost of buying one card and the number of cards bought.

Total cost of buying the individual thankyou cards = cost per card x number of cards bought

$0.15 × x = $01.5x

The inequality equation that would be used to represent this question is

(total cost of individual thankyou cards) > cost of the package

$0.15x > $8.50

In order to determine the value of x, divide both sides of the equation by 0.15

x > (8.50 / 0.15)

x > 56.67

x > 57 to the nearest whole number

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