what are the correct steps for solving the following equation: 5x - 4= 21

Answers

Answer 1
1. Add 4 to both sides of the equation
2. Simplify
3. Divide both sides of the equation by 5
4. Simplify
5. x= 5
Answer 2
5x - 4 = 21
+4 +4
5x = 25
x = 5
Hope this helps! :)

Related Questions

Nick works two jobs to pay for college. He tutors for $15 per hour and also works as a
bag boy for $8 per hour. Due to his class and study schedule, Nick is only able to work
up to 20 hours per week but must earn at least $150 per week. If t represents the
number of hours Nick tutors and b represents the number of hours he works as a bag
boy, which system of inequalities represents this scenario?
A. t+b = 20
15t + 8b < 150
B. t+b 20
15t + 8b = 150
C. None of the systems shown represent this scenario.
D. t+b = 20
15t + 8b > 150

Answers

Answer:The answer is B.

He can't work more than 20 hours so t+b must be less than or equal to 20.

He has to earn $150 so it cannot be less than 150. Theoretically he could earn more, e.g doing 10 hours of each job which equals $230

Therefore t + b less than or equal to 20 15t + 8b greater than or equal to 150

Step-by-step explanation:

Solve the simultaneous equations by substitution
8y−3x=23
3x=2y+1

Answers

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Xiang is a teacher who bought a $2350 laptop for school use. The laptop is an allowable
deduction with a rate of depreciation of 33% p.a. of the current value. How much can be
claimed for depreciation in the:

Answers

Answer:

b

Step-by-step explanation:

Find the sum of the first 33 terms of the following series, to the nearest
integer.
2,8, 14, ...

Answers

Answer:

3234

Step-by-step explanation:

The series is arithmetic with a common difference = d = 6

First we need to find the 33rd term.  Use the formula [tex]a_{n} = a_{1} + (n - 1)d[/tex] where n = 33 and [tex]a_{1} = 2[/tex]

[tex]a_{33} = 2 + (33 - 1)6 = 2 + 32(6) = 194[/tex]

Now the formula for the sum of an arithmetic series is [tex]S_{n} = \frac{n(a_{1} + a_{n} )}{2}[/tex]

So, [tex]S_{33} = \frac{33(2 + 194)}{2}[/tex]

          = [tex]\frac{33(196)}{2}[/tex]

          = 3234


What property is this ?

a(b + c) = ab + ac

Answers

Answer:

distributive I'm pretty sure!

Step-by-step explanation:

i hope this helps have a great day:)

A number z squared, decreased by 7

Answers

9514 1404 393

Answer:

  z² -7

Step-by-step explanation:

A square is indicated using an exponent of 2. "Decreased by 7" means 7 is subtracted.

  z squared, decreased by 7 is ...

  z² - 7

A restaurant makes pizzas with 6-inch diameters ad 12-inch diameters. Which of the following statement is true?

The area of the 12-inch pizza is twice the area of the 6- inch pizza

The area of the 12-inch pizza is three times the area of the 6-inch pizza

the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza

the area of the 6-inch pizza is 1/6 the area of the 12-inch pizza

Answers

Answer:

The correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.

Step-by-step explanation:

The area (A) of each pizza is given by:

[tex] A = \pi r^{2} [/tex]

Where:

r: is the radius

For the 12-inch pizza we have:

[tex] A_{12} = \pi (\frac{12 inch}{2})^{2} = 113.1 inch [/tex]

And for the 6-inch pizza we have:

[tex] A_{6} = \pi (\frac{6 inch}{2})^{2} = 28.3 inch [/tex]

The ratio between A₆ and A₁₂ is:

[tex] \frac{A_{6}}{A_{12}} = \frac{28.3 inch}{113.1 inch} = 0.25 = \frac{1}{4} [/tex]

Hence:

[tex] A_{6} = \frac{A_{12}}{4} [/tex]

Therefore, the correct option is c: the area of the 6-inch pizza is 1/4 the area of the 12-inch pizza.

I hope it helps you!            

The area of the 6-inch pizza is 1/4 the area of the 12-inch pizza

Given that;

Diameter of pizza A = 12 inch

Diameter of pizza B = 6 inch

Computation:

Ration of Area of Pizza A to B = [πr1²] / [πr2²]

Ration of Area of Pizza A to B = [(12/2)²] / [(6/2)²]

Ration of Area of Pizza A to B = [(6)²] / [(3)²]

Ration of Area of Pizza A to B = 36 / 9

Ration of Area of Pizza A to B = 4:1

So,

Option "C" is the correct answer of the following question.

Learn more:

https://brainly.com/question/21454181?referrer=searchResults

*DISCLAIMER THIS IS NOT A REAL QUESTION*

So I heard the most bullcrap thing yet

Izuku and Bakugou vs Gon and Killua


CLEAR FACTS: Killua vs Bakugou
Feats:

Killua can move at 12'000 mph, Melody could barely hear Hi footsteps BUT Melody could hear a conversation from miles across a city, and then you Have Godspeed.

Gon can move 200'000 mph, He has mastered nen, Top feat destroyed a massve chunk of a forest, and then you Have Adult Gon


Izuku can move at mach 29, Still hasn't mastered OFA, Top Feat Destroy, and then you have 100%OFA(Copyrighted SSJ2 Gohan and nen eyes)

Bakugo can move 27mph, His explosion's are harmless(anyone even near a expulsion should have there insides melted yet everyone is fine with them and they do not tooo much damage to Todoroki or Izuku or even his old bully friends in middle school and childhood), Also if Izuku shares his DNA ya get super OFA Bakugou (a lil stronger than deku but not big enough)

Answers

Answer:

so which one would beat up who?

Step-by-step explanation:

Answer:

killua is strongest out of all of them so i think hell wjin

Step-by-step explanation:

I need help on this problem

-10.7 + (-19.26)

(I have to show my work btw)

Answers

Answer:

-29.96

Step-by-step explanation:

You add both numbers, as both are negative, and you get the answer.

Find the missing value to the nearest hundredth cos=4/38

Answers

Answer:

83.96 (approximately)

Step-by-step explanation:

I am not completely sure what the problem is asking, just like the last one, but I believe that you are just supposed to take the inverse of cosine. So, in your calculator, make sure it is in degrees mode, then usually you have to click the 2nd key and then cosine. You use the inverse of cosine when two sides are given, but you are not given the angle.

It should look like:

[tex]cos^{-1}(\frac{4}{38})[/tex], which is approximately 83.96.

Hopefully this is right, if not, please let me know. Good luck.

A rock dropped 182 feet from the top of the Leaning Tower of Pisa falls straight to the ground (off the right
side), to a point 22 feet from the base of the tower What ongle does the Tower make with the ground? Round
to the nearest whole degree.
I NEED ANSWERS NOW!!

Answers

Answer:

i think 37237

Step-by-step explanation:

Solve for c:



c + (-20) = -12

Answers

Answer:

8

Step-by-step explanation:

Isolate and solve for C

[tex]c + (-20) = -12\\c - 20 = -12\\c = -12+20\\c = 8[/tex]

Answer:

C = 8

Step-by-step explanation:

By reversing the equation, you can get the result.

-12 + 20 = ?

-12 + 20 = 8

Proofcheck:

8 + (-20) = ?

8 + (-20) = -12

What is the degree of -8mn^2

Answers

Answer: 2

Step-by-step explanation:

To find the degree, use the exponent. An exponent of two means a degree of two, like an exponent of four means a degree of four

Please help! will mark brainliest if correct :) if not right, won't mark brainliest

Answers

9514 1404 393

Answer:

  (d)  285.7 ft²

Step-by-step explanation:

The lateral area of a cone is given by the formula ...

  A = πrh . . . . where r is the radius, and h is the slant height.

For your cone, this is ...

  A = (3.14)(7 ft)(13 ft) = 285.74 ft²

The lateral area of the cone is about 285.7 ft².

Answer:

Its the second one

PLease help with this i will give brainliest

Answers

Answer:

Probably -3

Step-by-step explanation:

If it's going by 3s, then it should be -3.

Answer:

-3

Step-by-step explanation:

y=-x+7 y=2x+1 solve using equations

Answers

Answer:

x=6,y=13

Step-by-step explanation:

Eliminate the equal sides of each equation and combine.

x+7=2x+1

Solve x+7=2x+1

x=6

Evaluate yy when x=6

y=13

The solution to the system is the complete set of ordered pairs that are valid solutions.

(6,13)

The result can be shown in multiple forms.

Point Form:

(6,13)

Equation Form:

x=6,y=13

What is the domain? {-2,3); (1,4); (2,4); (0,0)}

Answers

Answer:

-2,1,2,0

Step-by-step explanation:

0 your choice to right,still right it to be safe, domain is all x values

14 of 1914 of 19 Questions




































Question 14 please anyone please help me ☺
Francis scores 3 more than 2 times the number of points that Ray scores. If r represents the number of points Ray scores, which expression represents the number of points Francis scores?


5r



6r


2r+3

2 r + 3

3r+2

Answers

Answer:

See explanation

Step-by-step explanation:

The answer is either 2r+3 or 2 r + 3

I'm a bit confused because they're kinda the same thing but one of them is spaced out. I don't know if that space means anything.

Anyway if he's scores 3 more than 2 times the points ray scores, that means that he scores twice the amount that ray scores plus 3.

I NEED HELP NEEDS TO BE DONE IN 10 mins
Standard to Slope Intercept Form
Put the following equation of a line into slope-intercept form, simplifying all fractions.
2x+8y=24

Answers

Answer:

y = - [tex]\frac{1}{4}[/tex] x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

2x + 8y = 24 ( subtract 2x from both sides )

8y = - 2x + 24 ( divide all terms by 8 )

y = - [tex]\frac{1}{4}[/tex] x + 3 ← in slope- intercept form

which of the following rules shows a reduction

Answers

Answer:

I believe you're missing something.

................................................

Answers

Answer:

75.8°

Step-by-step explanation:

x + x + 28.4° = 180°{ being linear pair }

2x = 180° - 28.4°

2x = 151.6°

x = 75. 8°

Hope it will help :)

Find the area of the trapezoid by decomposing it into other shapes

Answers

Answer:

60 cm ( squared )

Step-by-step explanation:

you can find the area of the trapezoid ( by decomposing it into other shapes ) by separating two triangles, and using the formula to find the area of triangles, which is A= 1/2 ( b x h ) and add the answer to those together ( 16 cm squared and 4 cm squared ), and after that, you can find the area to the rectangle by multiplying the l x w, which is 10 x 4 ( after separating the triangles.). That equals 40, and when you add them all together ( 16 + 4 + 40 ) it equals 60 cm (squared).

Help pleaseeeeeeeeeeeeee fast

Answers

Answer:

Step-by-step explanation:

a = 11.5×3 = 34.5 in²

b = 7.5×11.5 = 86.25 in²

c = a = 34.5 in²

d = b = 86.25 in²

lateral area = 2×34.5 + 2×86.25 = 241.5 in²

Answer:

241.5 in²

Step-by-step explanation:

Jessica estimated that her family used 30% more water this month compared to last month . they used 12000 gallons of water last month , how much water did they use this month

Answers

Answer:

15,600 Gallons

Step-by-step explanation:

The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Last used of water = 12000

30% of 12000 = (30/100)12000 = 3600

Water used in the current year = 12000 + 3600 = 15600 gallons.

Hence "The 30% of 12000 is 3600 thus, Jessica's family used 15600 gallons of water".

For more about the percentage,

brainly.com/question/13450942

#SPJ2

What is this trying to ask me ???

Answers

Given :

In ∆ABC,

∠A = 60°∠B = 60°BC = 12 units∠BDC = 90°

To Find :

Area of ∆ABC = ?

Solution :

As, we have :

∠A = 60°∠B = 60°

So, By angle sum property of triangle :

∠A + ∠B + ∠C = 180°

[tex] \tt : \implies 60\degree + 60\degree + \angle C = 180\degree[/tex]

[tex] \tt : \implies 120\degree + \angle C = 180\degree[/tex]

[tex] \tt : \implies \angle C = 180\degree - 120\degree[/tex]

[tex] \tt : \implies \angle C = 60\degree[/tex]

Now, we have :

∠A = 60°∠B = 60°∠C = 60°

As, all angles are of same length, therefore it is a equilateral triangle.

We know that sides of equilateral triangle are equal.

[tex] \tt : \implies AB = BC = AC[/tex]

Now, we have BC = 12 units.

Hence, all sides are of 12 units.

Now, we know that area of equilateral triangle is :

[tex] \large \underline{\boxed{\bf{Area_{(equilateral \: triangle)} = \dfrac{\sqrt{3}}{4} side^{2}}}}[/tex]

[tex] \tt : \implies Area = \dfrac{\sqrt{3}}{4} \times (12 \: units)^{2}[/tex]

[tex] \tt : \implies Area = \dfrac{\sqrt{3}}{\cancel{4}} \times \cancel{144} \: units^{2}[/tex]

[tex] \tt : \implies Area = \sqrt{3} \times 36 \: units^{2}[/tex]

[tex] \tt : \implies Area = 36\sqrt{3} units^{2}[/tex]

So, Area of given triangle is 36√3 units².

If a greyhound can run up to 50mi/h. How long would it take a greyhound to run 10 mi?

Answers

Answer:

12 minutes

Step-by-step explanation:

(50miles/60 minutes)/5 = 10 miles/12 minutes

Help, I need this soon!

Answers

Answer:

1a. x=2 1b. x= -1

Step-by-step explanation:

Helppppppppppppppppp plzzzzzzzzzzzzzzzzzzzzzz

Answers

A it’s only right they is no way you can get more then A and it’s rounded

PLS COME ASAP PLS!!!!

Answers

Answer: 9/2

Step-by-step explanation:

21=2(6) + 2(?)

21=12 + 2(?)

9=2(?)

(9/2)=?

6. Which function is equivalent to y=3( x + 2)2 + 7?

Answers

Answer:

3x+45

/3x /3x

x= 15

Explanation:
3x+45
/3x /3x
answer
x=15
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