9. Which is a solution of the equation 5(x – 8) = -55 ?
a) x = 3
b) x = 13
c) x = -3
d) x = -9.4

Answers

Answer 1

Answer: c. x = -3

5(x - 8) = -55

⇔ 5x - 40 = -55

⇔ 5x = -55 + 40 = -15

⇔ x = -15/5

⇔ x = -3

Step-by-step explanation:


Related Questions

Find the circumference of the circle. Round to the nesrest tenth. 4 cm​

Answers

Answer:

25.1

Step-by-step explanation:

4 is the radius and the diameter is twice the radius. The circumference is pi times the diameter. 3.14x8 is 25.12. Round that to the nearest tenth to get 25.1.

2. Brice has $1200 in the bank. He will deposit $40 per week from his
paycheck.

Answers

Answer:

if the question is how much he'll have by the end of the week, the answer is $920

The equation that models the given sstatement is  $1200 + 40x

Sum of values

Given the following parameters

Initial amount of money in bank = $1200

If he will deposit $40 per week from his paycheck,the amount of money he willhave at the end of x weekis given as:

Total = Iniital + 40x
Total .= $1200 + 40x

Hence the equation that models the given sstatement is  $1200 + 40x

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EASY MATH QUESTION HELP! Which pair of angles are vertical angles in the picture below?

What are the interior angles in the picture below?

Answers

Answer:

B, 3 and 5

Step-by-step explanation:

Answer:

3 and 5 for number 1, 1,4,5 and 8 for number 2

Step-by-step explanation:

I’ve been stuck on this help if you can. Thanks

Answers

Answer:

The line of reflection is y=3

Step-by-step explanation:

X=3 is the line of reflection for the trapezoids.

Tell me which ones are rational or irrational numbers I will number them 1 to 10

1. 3.9

2. 14.9876.....

3. √9

4. 2 1/2

5. 13

6. √100

7. √10

8. 2π

9. √5 + 9

10. 9.812.....

Answers

Answer:

1,3,4,5,6

Step-by-step explanation:

all the other answers to not have a definite end to them. rational numbers end

A person who is 6.1 feet tall is standing in a pool. The top of the person's head is 1.8 feet above the surface of the water. How deep is the pool? Write your answer as a decimal.

Answers

Depth of pool + 1.8 = 6.1
D = 6.1 - 1.8 = 4.3 feet

John claims the following two expressions are equivalent.
- 215y - 3) = - 10y - 6
John's work in determining an expression equivalent to the first expression is shown below.
- 2/5y - 3)
= (-2x5y) - (-2x - 3)
= - 10y-6
Which statement explains why John's claim is incorrect?
He should have subtracted (-2 * 3) resulting in the expression–10y + 6.
He should have only multiplied 3 by -2 resulting in the expression 5y - 6.
He should have only multiplied Sy by -2 resulting in the expression-10y - 3.
He should have only multiplied 3 by -2 and subtracted (-2 * 3) resulting in the expression 5y + 6.
А.
В.
С.
D

Answers

Answer:

the answer is B. He should have only multiplied 3 by –2 resulting in the expression 5y – 6.

Step-by-step explanation:

In the given expressions, the reason for John's claim being incorrect would be:

B). He should have only multiplied 3 by –2 resulting in the expression 5y – 6.

Given,

The two expressions i.e.  [tex](-215y - 3) = - 10y - 6[/tex]The mistake that John makes is that he multiplies the entire equation by -2 as shown in [tex]= (-2x5y) - (-2x - 3)[/tex] which makes it incorrect.In order to rectify this mistake, only 3 was suppossed to be multiplied by -2 so that the outcome comes out as [tex]5y - 6[/tex].

Thus, option B is the correct answer.

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Solve.
7( x+3 ) < 5x + 13

Answers

Answer:

[tex]\boxed {x < -4}[/tex]

Step-by-step explanation:

Solve the following inequality:

[tex]7(x + 3) < 5x + 13[/tex]

Use Distributive Property:

[tex]7(x + 3) < 5x + 13[/tex]

[tex]7x + 21 < 5x + 13[/tex]

-Take [tex]5x[/tex] and subtract it from [tex]7x[/tex]:

[tex]7x + 21 - 5x < 5x - 5x + 13[/tex]

[tex]2x + 21 < 13[/tex]

Subtract both sides by [tex]21[/tex]:

[tex]2x + 21 - 21 < 13 - 21[/tex]

[tex]2x < -8[/tex]

Divide both side by [tex]2x[/tex]

[tex]\frac{2x}{2} < \frac{-8}{2}[/tex]

[tex]\boxed {x < -4}[/tex]

the answer to this is x<-4

1) 7x+3-4x-x is the answer abc or d
A-x
B 3
C7x
D-4x

Answers

7x - 4x - x + 3

2x + 3

hope this helped

Hey there!

7x + 3 - 4x - x

• First COMBINE your LIKE TERMS

(7x - 4x - x) + (3)

• x by itself is understood as an INVISIBLE ONE

(7x - 4x - 1x) =

(7x - 4x) = 3x

(3x - 1x) = 2x

➡️ 2x + 3

• Answer:

2x + 3

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

The cost y (in dollars) to spend an evening bowling is proportional to the
number of games x that are bowled.
It costs $16 to bowl 4 games.
5. Write an equation that represents the situation.
6. How much does it cost in dollars) to bowl 6 games?

Answers

Answer:

y = 4x

Bowl 6 games cost $24

Step-by-step explanation:

Proportional Relationship

We have a situation where the cost y in dollars to spend an evening bowling is proportional to the number of games x bowled.

A proportional relationship is written with the equation:

y = k.x

The value of k will be determined by using the given information: 4 games bowled cost $16, thus:

16 = k.(4) = 4k

Solving:

k = 16 / 4 =4

Thus, the function is:

y = 4x

x=6 games bowled cost:

y = 4*6

y = $24

Bowl 6 games cost $24

what is (9x-10y)-(-8x-8y)?

Answers

17x-2y because 9-(-8) really means 9+8 and -10-(-8) really means -10+8.
Brainliest is always appreciated

What is the slope of the line that passes through the points (-10, 9)(−10,9) and (-12, 7) ?(−12,7)

Answers

Answer:

The slope is 1

Step-by-step explanation:

Equation of the line:

y = x + 19

How many hours are in 40% of a week?

Answers

Answer:

67.2 hours

Step-by-step explanation:

Answer:

Step-by-step explanation:

67.2 hours are in 40% of a week.

Select the theorem that proves the triangles congruent. If the triangle cannot be proven congruent, select "not congruent."

Please help! I’ll give brainliest!!

Answers

Answer:

E

Step-by-step explanation:

here we have Angle S≅angle Q, then we have Side PS≅QR and then we have  again Side PR≅PR so we have A-S-S but there is NO theorem of congruency  that spells that word

How to do this question plz answer me ​

Answers

Answer:

18 will be the number of sides.

Step-by-step explanation:

As we know that the sum of exterior angles of a polygon is 360°.

The formula is:

The exterior angle of a polygon = 360 ÷ number of sides

As each exterior angle of a regular polygon is 20°.

so putting the value exterior angle 20° in the formula

The exterior angle of a polygon = 360 ÷ number of sides

                                               20  = 360 ÷ number of sides

                                               20  = 360/number of sides

so the number of sides will be:

                         number of sides = 360/20

                                                     = 18

Therefore, 18 will be the number of sides.

Which values represent solutions to the equation? Tangent (StartFraction 3 pi Over 4 EndFraction minus 2 x) = negative where x Is an element of [0, Pi]

Answers

Answer: we need a picture to solve this, please repost with a picture of your assignment

Step-by-step explanation:

Answer:

D.) 0, pi/2, pi 3pi/2

Step-by-step explanation:

Mark works at a clothing store and earns 20% commission on his total sales last month mark sold $1500 in closing total sales what was his commission last month

Answers

Answer:

$300

Step-by-step explanation:

I did have an explanation here but someone *cough* *cough* laurenercsp6fpli  deleted all my answers for no reason. But I did the math and I assure you that the answer is $300.

A glass is 1/3
full. Then 75cm3 of orange juice is poured in.
The glass is now 3/4
full. What is the total volume of the glass?

Help please!

Answers

The total volume of the glass is 100cm3 = 100ml
Explain: the glass is divided in 4 parts, the glass is 3/4 when 75 cm3 of orange is poured in. To find 1 part, calculate 75/3=25 (cm3). So the total volume is 4 parts, then 25*4=100 (cm3)

Sebastián was saving $8.50 each week in order to have enough money for a phone that costs $122. If his father started him off with $25, write an inequality that can be used to determine the minimum number of whole weeks, w, Sebastián will need to save.

Answers

Step-by-step explanation:

122 - 25

97

y= 8.5x + 25

97/8.50 <

11.4 --> 12

x < 12

Answer:

25 + 8.50w ≥ 122

Step-by-step explanation:

Given that:

Amount saved per week = $8.50

Cost of phone = $122

Starting amount = $25

Minimum Number of whole weeks (w) Sébastien will need to save :

Starting amount + (weekly saving * number of weeks) ≥ 122

25 + 8.50w ≥ 122

8.50w ≥ 122 - 25

8.50w ≥ 97

w ≥ 97/8.50

w ≥ 11.4117

Number of whole weeks = 12

A statement of equality between two ratios is called a
a) Product
b) Proportion
c) Property
d) Relation
e) Percentage

Which one?

Answers

the answer is b, proportion!
proportion because i got this right

Guys I need help asap what is half of 45

Answers

Half of 45 is 22.5 or 22 1/2!

ANSWER IF THIS IS WHAT MATH LOOKS LIKE TO YOU↓↓↓ ∵⊕∪⊕∵

Answers

Answer: yessss

Step-by-step explanation: I hate math

Answer:

yall help me with this im solving by substition

Step-by-step explanation:

xy=4

2x-y+2=0

It takes 3 hours to cook an 8-pound turkey. How long would it take to cook a turkey that is 14 pounds? Round to the nearest tenth.

Answers

Answer:

5.3 hours

Step-by-step explanation:

Given:

3 hours = 8lbs. turkey

?? hours = 14lbs. turkey

Do proportions:

[tex]\frac{3}{8}[/tex] = [tex]\frac{x}{14}[/tex]  <-- Cross Multiply

42 = 8x  <-- Solve for x

x = 5.25

Round to the nearest tenth:

x = 5.3 hours

Generate an equivalent expression for:
5(2x+3y)

i kinda need this awnser asap also its for a flip grid so not to advanced

I WILL GIVE BRAINLIEST

Answers

Answer:

y = [tex]\frac{-2x}{3}[/tex]

Step-by-step explanation:

Distribute 5 to 2x and 3y by multiplying each by 5

10x + 15y

Isolate y to one side of the equation

15y=-10x

Divide each side by 15

y = [tex]\frac{-2x}{3}[/tex]

Answer:

5(2x + 3y) = 10x + 15y

Step-by-step explanation:

There is one particular way to find an equivalent expression which I am assuming is what the problem is looking for. When given a factored expression in the form of a binomial (two terms), by creating an equivilent expression, you can distribute the binomial inside the parenthesis factored by the coefficient 5. So 5(2x + 3y) = 5(2x) + 5(3y) = 10x + 15y.

5 is also the greatest common factor of 10x + 15y which is why this expression simplifies down to the equivilent expression 5(2x + 3y).

10x + 15y as a GCF is really the GCF of 10 and 15. What you do is individually split each number into all its possible factors(set of whole numbers that multiply to that number), and then find the factor that they both share.

For example, 10 has factors of 5, 2, 1, 10. And 15 has factors of 15, 1, 5, 3.

Notice how 5 appears in both.

Find (x−2)(4x+2) using the table of products. Write your answer in standard form.

Answers

Answer:

x = {0.449489743, -4.449489743} thats what i got

The product of the two expressions (x - 2)(x + 2) gives x² - 4

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Given the expression (x - 2)(x + 2):

Multiplying the two expressions gives:

x² + 2x - 2x - 4

This gives:

x² - 4

The product of the two expressions (x - 2)(x + 2) gives x² - 4

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7/12 divided by 2 5/8

Answers

Answer:

2/9 or 0.2 repeating

hope this helps and that it is correct

help please !! explain if can too? :)

Answers

Answer:

29 because lines ac and bd are perpendcular and equal.

Step-by-step explanation:

im not fully sure my explanation is good enough

Which one is right *Will make BRAINLEST*

Answers

Answer:

To me it looks like B

Step-by-step explanation:

RIP King Von

help please!!!!!!!!!

Answers

Answer:

[tex]f\left(0\right)=\left(0\right)^2-4\left(0\right)=0-0=0[/tex]

[tex]f\left(1\right)=\left(1\right)^2-4\left(1\right)=1-4=-3[/tex]

[tex]f\left(2\right)=\left(2\right)^2-4\left(2\right)=4-8=-4[/tex]

[tex]f\left(3\right)=\left(3\right)^2-4\left(3\right)=9-12=-3[/tex]

[tex]f\left(4\right)=\left(4\right)^2-4\left(4\right)=16-16=0[/tex]

Step-by-step explanation:

Given the function

[tex]f\left(x\right)=x^2-4x[/tex]

Putting x=0 in the equation to find f(0)

[tex]f\left(x\right)=x^2-4x[/tex]

[tex]f\left(0\right)=\left(0\right)^2-4\left(0\right)=0-0=0[/tex]

   

Putting x=1 in the equation to find f(1)

[tex]f\left(x\right)=x^2-4x[/tex]

[tex]f\left(1\right)=\left(1\right)^2-4\left(1\right)=1-4=-3[/tex]

Putting x=2 in the equation to find f(2)

[tex]f\left(x\right)=x^2-4x[/tex]

[tex]f\left(2\right)=\left(2\right)^2-4\left(2\right)=4-8=-4[/tex]

Putting x=3 in the equation to find f(3)

[tex]f\left(x\right)=x^2-4x[/tex]

[tex]f\left(3\right)=\left(3\right)^2-4\left(3\right)=9-12=-3[/tex]

Putting x=4 in the equation to find f(4)

[tex]f\left(x\right)=x^2-4x[/tex]

[tex]f\left(4\right)=\left(4\right)^2-4\left(4\right)=16-16=0[/tex]

it’s due in 5 mins pleases helppppp!!!

Answers

Answer:

I don't understand what to do

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