what is Evaluate 5x2-4 when x=3.

Answers

Answer 1
5x = 5 x 3 = 15

15 x 2 = 30

30-4 = 26

(I assume the 5x is multiplied by the 2)
Answer 2
5x=5x3=15
15x2=30
30-4= 26
PleAse mark me brainliest

Related Questions

One example of a mathematical model is an equation that describes the relationship between two quantities.

a. True
b. False

Answers

Answer:

True

Step-by-step explanation:

Linear equations are often used to model the relationship between the dependent variable that is affected by changes in the independent variable.  

For instance, the linear function: f(x) = 2x + 3, where f(x) is the output (dependent variable) depends on the value of the input, x (independent variable).  

Therefore, the correct answer is True.      

Find the missing measure (simular figures)

Answers

Answer:

66m, 35in?, 12m, 2km, 26cm

Step-by-step explanation:

22/17 = 1.294x51 = 66m

7/3 = 2.333x15? = 35in not sure if the number on the pic is 15

18/12 = 1.5x8 = 12m

6/27 = .2222x9 = 2km

6.5/2.5 = 2.6x10 = 26cm

Lakeside amusement park charges an entry fee plus $1.50 per ticket used to go on the rides. The entry fee is the same amount for everyone. Louisa spent a total of $30.75 on the entry fee plus 15 ride tickets. Click “show your work” below and show calculations to determine how much Louisa paid for the entry fee.

Answers

Answer:

The entry fee is $8.25

Step-by-step explanation:

Total together: $30.75

She bought 15 tickets * $1.50 cost per 1 ticket

= $22.50

$30.75 (total) - $22.50 (price of tickets)= $8.25

12 can someone please explain this

Answers

Answer:

B = x = 44 degrees

Step-by-step explanation:

Interior angles of a triangle = 180 degrees.

There are 2 congruent sides so the angle to the right of 67 degrees is also 67 degrees

180 - 2(67) = 46 degrees (the third angle of the triangle)

x + 46 degrees = 90 degrees ( complementary angles)

x = 44 degrees

[tex]14x=8x+30[/tex]

Answers

Answer:

5

Step-by-step explanation:

14x - 8x = 30

5x = 30

x = 6

..........

Answer:

solution

14x=8x+30

collect like terms

30=8x-14x

30= -6x

divide by -6x

30/-6 = -6x/-6

X= –5

Factorize:
2ax-6ay+bx-3by

Answers

Answer:

2ax − 6ay + bx − 3

Step-by-step explanation:

The expression is not factorable with rational numbers

Answer:

Step-by-step explanation:

2a(x - 3y) + b(x - 3y)

I need help solving #9 & #11! It's geometry but I'm just really stuck

Answers

Answer:

9)x=11 y=3

11)x=18 y=5

Step-by-step explanation:

9) 9x+25=13x+19                   13x-19+17y+5=180

   9x+44=13x                         129+17y=180

   44=4x                                 17y=51

   11=x                                     y=3

11) 49+3x=7x-23                    3x=11y-1

In ΔDEF, EF = 15, FD = 13, and DE = 4. Which list has the angles of ΔDEF in order from smallest to largest?

Answers

Answer:

< F , < E, < D

Step-by-step explanation:

ΔDEF

Arrange the sides from smallest to largest

DE = 4, FD = 13, and EF = 15.

Largest side opposes the largest angle, medium side opposes the medium angle, smallest side opposes  the smallest angle.

the angles of ΔDEF in order from smallest to largest

< F , < E, < D

Enter the value of x. The diagram is not to scale.
680
119°
.70

Answers

Answer: 51

119=68+x => x=51

you recieve a pay raise of 5% then recieve a pay cut of 5%. after the two changes in pay your salary is unchanged

Answers

Answer:

true

Step-by-step explanation:

False, receive a pay raise of 5% then receive a pay cut of 5%. after the two changes in pay, your salary is changed.

Given that,
To justify the given statement is false or true.

What is the percentage?

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

here,
let the salary be x,
Salary after 5% raise = 1.05x
Salary after cut of 5% = [1 - 0.05] [1.05x]
Salary after a cut of 5% = 0.9975x
So the salary becomes 99.75% of the original salary x.

Thus, the given statement is false, receive a pay raise of 5% then receive a pay cut of 5%. after the two changes in pay, your salary is changed.

Learn more about percentages here:

brainly.com/question/13450942

#SPJ5

in 2000 the population of India was around 1.053 billion , and in 2016 the population hit 1.327 billion people . if India's population continues to grow at this same rate in what year was the population of India reach 3 billion people. ​

Answers

Answer:

The population of India would reach 3 billion in about 112 years (year 2128)

Step-by-step explanation:

1. subtract 1.327 billion by 1.053 billion  (1.327-1.053)

2. The answer you should get is 274,000,000 (two hundred seventy four million)

3. multiply 274,000,000 by 7 (amount of people required to reach about 3 billion)

4. add the product (ans to multiplication problem) to 1.327 billion. (you should get 3.245 billion (3245000000).

5. multiply 16 by 7 (16x7) to get the number of years to reach 3 billion (maybe 112)

6. Add the product to 2016

7. Therefore you get the year 2128.

Write an equation of the line in​ point-slope form that passes through the given points. (4,6) and (5,9)

Answers

Answer:

graph{x + 2 [-10, 10, -5, 5]}

Step-by-step explanation:

okay now i rlly need this done man

Answers

Answer:

x=9.5

EDIT: Its actually x=6

Step-by-step explanation:

Brainliest?PLEASE?

Answer:

4

8

+

2

{\color{#c92786}{\frac{4x}{8}}}+2

84x​+2

2

+

2

Step-by-step explanation: please mark brainliest

what’s the mean of 8.3 9.1 8.1 8.7

Answers

Answer:

i don't know do you know

Step-by-step explanation:

The answer is 8.55 (but can be rounded to 8.6)

Explanation: You add up all of the numbers which would get you 34.2 then divide it by how many there are, in this case 4

maths giving 10 point asap 1 question only​

Answers

N = -5 sorry I only answered the second one
▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Solve the following linear equations :

(i) x + 2 = 5x

2 = 5x - x

2 = 4x

x = 4/2

x = 2

(ii) 3(n - 1)/2 = n - 4

3 × (n - 1)/2 = n - 4

3n - 3/2 = n - 4

3n - 3 = 2(n - 4)

3n - 3 = 2 × (n - 4)

3n - 3 = 2n - 8

3n - 2n = -8 + 3

n = -5

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Find the value of 19-b when b=7

Answers

Answer:

12

Step-by-step explanation:

the answer is 12 because 19-7=7

1
Mr. Johnson wants to fill up his car's gas tank. The car has a 25 gallon gas tank and there are 4 gallons of gas already in the tank. Gas costs $3.04 for each gallon. Mr. Johnson has $50 to spend on gas. Will he have enough money. Show your work and justify your answer.

Answers

Based on the cost of filling of the car, we can infer that Mr. Johnson does not have enough to spend on gas.

The car can take 25 gallons of gas and already has 4 liters inside it. The quantity of gas Mr. Johnson has to buy is:

= 25 - 4

= 21 gallons

The price of a gallon is $3.04. The price of 21 gallons would be:

= Price of gas x Number of gallons

= 3.04 x 21

= $63.84

In conclusion, Mr. Johnson does not have enough to spend on gas because he has only $50 yet the gas will cost $63.84.

Find out more at https://brainly.com/question/21060271.

please helpp I'll give brainiest

Answers

Answer:

q + q + 4

Step-by-step explanation:

q + q +4

2/3 = 4/x+3 what is x?

Answers

Answer:

-12/7

Step-by-step explanation:

2/3=4/x+3

2/3-3=4/x    Subtract 3 from both sides

2/3-9/3=4/x   Make them have a common denominator

-7/3=4/x

-7/3x=4

x=(4)/(-7/3)

x=[tex]\frac{-12}{7}[/tex]

Please help fast
What system of linear inequalities is shown in the graph?
Enter your answers in the boxes.

Answers

Answer:

I'm only able to see a black square instead of any image. Could you resend it?

Please show the process of how you got your answer. Thank you! Much appreciated. :)

Answers

Answer:

The answer is 2a^3\sqrt11a

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Answer:

2[tex]2\sqrt{11} a^{3} \sqrt{a}[/tex]

Step-by-step explanation:

Apply Radical rule: ([tex]\sqrt{ab}= \sqrt{a}\sqrt{b}[/tex])

Which gets you:

[tex]\sqrt{44a^{7} }=\sqrt{44}\sqrt{a^{7} }[/tex]

= [tex]\sqrt{44} \sqrt{a^{7} }[/tex]

Simplify and gets you the answer above

3. The first row shows s(1) = 0.5. What does this mean in words?​

Answers

Answer:

this means it shows half as a fraction turned into a decimal

Step-by-step explanation:

1/2=fraction form

0.5=decimal form

50%=percent form

half=word form

a board that is 4 1/2 feet long weighs 7 1/5 pounds how much would one foot of the board weigh? write your answer as a mixed number

DESPERATE PLEASE HELP WILL AWARD BRAINLIEST

Answers

Answer: 1 foot = 5/3 or 1.6666 pounds

Step-by-step explanation: to get 4 1/2 feet to one foot, you divide by 4 1/2. in this equation, 4 1/2 ft= 7 1/2 pounds. if you divide one side by 4 1/2, you also have to do the same to the other side. therefore you do 7 1/2 divided by 4 1/2 which will give you 1.6666 or 5/3.

1 foot= 5/3 pounds

A local catering
company is offering a
Spring BBQ special that
feeds 30 people for
$195. How much would it
cost to feed 50 people?

Answers

To feed 50 people it would be $325

10(c–1)=80 i need help

Answers

Answer:

C =9

Step-by-step explanation:

10(c−1)=80

Step 1: Simplify both sides of the equation.

10(c−1)=80

(10)(c)+(10)(−1)=80(Distribute)

10c+−10=80

10c−10=80

Step 2: Add 10 to both sides.

10c−10+10=80+10

10c=90

Step 3: Divide both sides by 10.

10c

10

=

90

10

c=9

A cheetah runs 296 feet in 4 seconds. How far could a cheetah run in 10
seconds at this rate?

Answers

Answer:

740 feet

Step-by-step explanation:

The speed of the cheetah is 74 feet per second:

speed = distance ÷ time

= 296 ÷ 4 = 74 feet per second

In 10 seconds:

distance = speed × time

= 74 × 10

= 740 feet

Answer:

740 Feet

Step-by-step explanation:

Given:  296 ft= 4 sec

 

To Find: 10 sec = [tex]\left[?}\right][/tex] ft

First we need to Find How many feet are in 1 second.

To find that,

Do 296 divided by 4

=

74

So 1 second = 74 Feet.

Then 74 ft Times 10 second

Which gives you

740 Feet.

Therefore, at 10 second rate gives you 740 Feet.

Find the measures of a right triangle with one angle whose measure is 30

Answers

Answer:

The other measure is 60º

Step-by-step explanation:

a triangle= 180º total

a right triangle has one 90º angle

there is a 30º angle given

180-90=90

90-30=60

so 60º

Find the difference in 14 5/10 - 12 9/10 please

Answers

Answer:

1 3/5

Step-by-step explanation:

14 5/10 - 12 9/10

I like to line them up vertically

 14 5/10

- 12 9/10

-----------------

We need to borrow from the 14.  14 becomes 13 and the 1 becomes 10/10

 13 10/10+5/10

- 12 9/10

-----------------

13 15/10

- 12 9/10

-----------------

1  6/10

Simplify

1 3/5

6 383 to the nearest hundred ?

Answers

6,400 is the nearest hundred

A line with a slope of 2 passes through the point (-8, 2). What is its equation in
point-slope form?

Answers

Hello!

y-y1=m(x-x1)

y-2=2(x-(-8)

y-2=2(x+8)

And that's our equation in point-slope form. Hope this helps!

~Just a joyful teen

[tex]SilentNature\\(GraceRosalia)[/tex]

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