given f(x)=5x+15 find f(x)=30

Answers

Answer 1
Given the function, f(x) = 5x + 15:

In order to find the value of x when f(x) = 30, substitute the value of the output into the function:

f(x) = 5x + 15
30 = 5x + 15

Subtract 15 from both sides:
30 - 15 = 5x + 15 - 15

15 = 5x

Divide both sides by 5:
15/5 = 5x/5

x = 3

Therefore, the value of x when f(x) = 30 is 3, or f(3) = 30.

Related Questions

If I think of a number Takeaway one and multiplied by three what will the answer

Answers

Answer:

3(x-1)

Step-by-step explanation:

Let the number be 'x'

When I take away 1 , the number is x - 1.

When I multiply 3, the number is 3(x-1).

The number is 3(x-1).

if you help me you get brainly

Answers

Answer:

3 ( 917 ) = 3 ( 900 ) + 3 ( 10 ) + 3 ( 7 )

5 ( 209 ) = 5 ( 200 ) + 5 ( 0 ) + 5 ( 9 )

6 ( 347 ) = 6 ( 300 ) + 6 ( 40 ) + 6 ( 7 )

9 ( 821 ) = 9 ( 800 ) + 9 ( 20 ) + 9 ( 1 )

11 ( 142 ) = 11 ( 100 ) + 11 ( 40 ) + 11 ( 2 )

Step-by-step explanation:

Answer:

Hint(look at the first number in each part and math it with the first number in each answer.) For example, 3(937), the distributive property for that one would be 3(900) + 3(30) + 3(7). Then for 5(209) it would be 5(200) + 5(0) + 5(9), then for 6(342), it would be 6(300) + 6(40) + 6(2). Then for 9(821), it would be 9(800) + 9(20) + 9(1), and for the last one it would be 11(143), it would be 11(140) + 11(40) + 11(3). You basically distribute each amount into different place values.

Step-by-step explanation:

Hope it helps. Mark brainiest if it does!

The speed of light is approximately 6.71 x 108 miles per hour. Express this number in standard form.

Answers

10^8=100000000

100000000x6.71=671,000,000

How to find the Focus directrix and the lanth of the latus rectum of the equation below

Answers

I don’t know tell that person to figure it out.

Triangle ABC is transformed to obtain triangle A′B′C′:

A coordinate grid is labeled from negative 12 to 0 to 12 on both x and y axes at increments of 1. Triangle ABC has A at ordered pair negative 12, 12, B at negative 9, 6, C at negative 3, 12. Triangle A prime B prime C prime has A prime at ordered pair 4, negative 4, B prime at 3, negative 2, C prime at 1, negative 4.

Which statement is correct for Triangle ABC. and Triangle A prime B prime C prime.?

Triangle ABC is similar to triangle A prime B prime C prime. because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 3. and then rotating it about the origin by 180 degrees
Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 4. and then rotating it about the origin by 90 degrees
Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 4. and then rotating it about the origin by 180 degrees
Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 6. and then rotating it about the origin by 90 degrees

Answers

Answer:

First option is true

Step-by-step explanation:

A (-12,12)   B (-9, 6)   C (-3,12) -> dilation about the origin (0,0) with scale factor of 1/3 -> A" (-4,4)   B" (-3,2)   C" (-1,4)

A"B"C" rotation about origin 180° -> (x,y) => (-x,-y)

A' (4,-4)   B' (3,-2)   C'(1,-4)

Through (-3,-5), Perpendicular to y = -x-5 in point slope and slope intercept form

Answers

Step-by-step explanation:

I really hope this helps :)

Can someone please help me with this :( Thank u :))

Answers

Answer:

It would be 54/100

Step-by-step explanation:

because the 4 in 5.4 is in the hundreds so its 54/100

pls mark as brainliest

From the set {17, 22, 27}, use substitution to determine which value of x makes the inequality true.
x - 5 < 7
A. 27
B. 22
C. none of these
D. 17

Answers

Answer:

C

Step-by-step explanation:

Solving the inequality

x - 5 < 7 ( add 5 to both sides )

x < 12

None of the given values in the set are less than 12

Then solution is option C

Which expression is equivalent to Negative 28 x y + 35 y?

7 y (Negative 4 x y + 5 y)

7 x (negative 4 x + 5 y)

7 x (negative 4 y + 5 y)

7 y (Negative 4 x + 5)

plz i only have 10 mins 40 pont's

Answers

the answer is the last one because 7y(negative4x) =28xy
and 7y(5) =35y

thus 28xy+35y i hope it helps

8. The equivalent of ¾ inch is __________?

Answers

Answer: 0.75

Step-by-step explanation:

0.75 is the correct answer

WIll give brainliest


In an appellate court,


judges could reverse a trial verdict

citizens may have a trial by jury

cases are heard for the first time

juries may listen to new evidence

Answers

I need more context what are you asking for exactly I mean this gives information a bout some of the sixth amendment in the English bill of rights but you aren’t telling me what you want to know what should I be looking for

To avoid a storm, a passenger-jet pilot descended 0.68 mile in 0.8 minute. What was the plane's average change of altitude per minute?

Answers

Answer:

0.85 m

Step-by-step explanation:

0.68/8=A decent of 0.085 miles per 0.1 minute

So per minute 0.085x10 =0.85, our plane will have a change of 0.85 m in altitude

Apples are on sale at the grocery store at a price of 8 apples for $4.00. Maggie buys 12 apples. If she is charged the sale price for apples, how much will Maggie pay?

Answers

Answer:

$6

Step-by-step explanation:

Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?

7x + 2y = –1
7x + 2y = 1
14x + 4y = –1
14x + 4y = 1

Answers

Answer:

7x + 2y = 1

Step-by-step explanation:

1. Find the slope of the line.

(y2-y1)/(x2-x1) ---->  (11 - (-3))/((-3) -1) ----> (11+3)/ (-3 -1) ----> 14/-4

*lets simplify into (7/-2)*

2. Write into slope intercept form.

y=mx+b (m is the slope) (b is the y intercept)

y = (7/-2)x + b

We now need to find the value of b, this can be done by plugging in values of x and y, and using algebra to solve.

11 = (7/-2)(-3) + b

11 = 10.5 + b

b = 0.5 or 1/2

slope intercept form y = (7/-2)x + 1/2

Now we convert to standard form: ax+by=c

*In this form we our a term cannot be a fraction nor can it be negative*

1. Get x and y on the same side, and since our x term is negative right now, we can make it positive by adding it on both sides.

(7/2)x + y = 1/2

2. We now want to get rid of the fraction in term a, so we multiply the entire function by two, so the denominator cancels out.

2(7/2)x + 2y = 2(1/2)

Simplify and you get

7x + 2y = 1

Answer:

Step-by-step explanation:

Answer:

The Width of the garden will be 9 feet.

Step-by-step explanation:

Given:

Manny has wood =48 feet

Length of the garden = 15 feet

The equation which can be used  .

We need to find the width of the garden.

Solution :

Now Length of the garden is given we will substitute in the given equation to find the width.

Now Using Subtraction property we will subtract both side by 30 we get;

Now Using Division Property we will divide both side by 2 we get;

Hence the Width of the garden will be 9 feet.

Adam went on a shopping trip to Somerville. He purchased a set of dishes originally priced at
$390 but discounted 60%. If sales tax in Somerville is 8%, what was the total cost?
Submit

Answers

Answer:187.2

Step-by-step explanation:

Actual price $390

After 60% discount price will be 156

And Sales tax is 8% . Then the price of sales tax is $31.2.

156+31.2= $187.2

Answer:

168.48

Step-by-step explanation:

IXL

Add the fractions
pls helpppp

Answers

Answer:

C

Step-by-step explanation:

-40-2[(-8) / 2] please someone explain this how to do it

Answers

Step-by-step explanation:

just try this in calculator

solve for x givin the similar figures

Answers

X= 24

Explanation: multiply by 2

Darcie wants to crochet a minimum of 333 blankets to donate to a homeless shelter. Darcie crochets at a rate of \dfrac{1}{15}
15
1

start fraction, 1, divided by, 15, end fraction of a blanket per day. She has 606060 days until when she wants to donate the blankets, but she also wants to skip crocheting some days so she can volunteer in other ways.
Write an inequality to determine the number of days, sss, Darcie can skip crocheting and still meet her goal.

Graph the solution set to this inequality.

Answers

Answer:

s ≤ 15

Step-by-step explanation:

1/15(60 - s) ≥ 3

4 x 15 - s/15 x 15 ≥ 3 x 15

60 - s - 60 ≥ 45 - 60

-s/-1 ≥ -15/-1

s ≤ 15

Will give brainliest!

Answers

Answer:

Step-by-step explanation:

25-10=15kgs

15+5=20minutes

1/2*15=7.5hrs

7:05-2:00=5:05pm

HELPP YALL! ILL MARK BRAINIEST!!! LOOK AT PICTURE!!!

Answers

180-108= 172 172 divided by 5 is 14.4 z=14.4
180-67=113 y=113

Answer:

y=113, z= 36

Step-by-step explanation:

because complementary angle to y is isotope with angle 67 degrees so y=113

z=((180-113)+108):5

Answer the original questions. (2 points: 1 point ea a) How long is each individual act? b) How long is each group act​

Answers

Answer:

a) Each individual act will last 5 minutes.

b) Each group act will last 10 minutes.

Step-by-step explanation:

I think this is right

Riley bought 30 festival tickets for his friends and paid $145.How much did each ticket cost?

Answers

Answer: $4.83

Step-by-step explanation:

you do 145/30=4.8333

Can i please have brainliest, if not thats alright

Have a good day

Answer:

4 remainder 25

Step-by-step explanation:

Hope this helped!

which of the follwong is CLOSEST to The area of the shaded part of circle V? ​

Answers

Answer:

A

Step-by-step explanation:

The entire circle has an area of pi * r^2

r = 10

pi = 3.14

Area = 3.14 * 10^2

Area = 314 cm^2

But that is the whole circle. What is shaded is 1/4 of the circle which 314/4

which = 78.5 cm^2

Answer: A

Answer:

A) 78.5 cm^2

Step-by-step explanation:

1. To find the shaded part of the circle (1/4), we can use a formula similar to the one we use to find the area of a whole circle, but in this case, for the 1/4 part that's shaded: [tex]\frac{1}{4} \pi r^2[/tex]. Keep in mind that pi is approximated to 3.14.

2. (Solving)

Step 1: Plug in the values.

[tex]\frac{1}{4}(3.14)(10^2)[/tex]

Step 2: Simplify.

[tex]\frac{1}{4}(3.14)(100)[/tex] [tex]0.785(100)[/tex] [tex]78.5[/tex] 78.5 cm^2

Therefore, the answer is A) 78.5 cm^2.

please help me, I'm terrible at math

Answers

Answer:

50

Step-by-step explanation:

450/9=50

Answer:

$40.50

Step-by-step explanation:

Commission is easily calculated, as you only need two parts: total value of sales generated, and the commission percentage that the seller takes home. All you do is multiply the two numbers. The formula is shown below:

How many times does the line y=-1 touch the graph? (Ensure to draw your line on the graph)

Answers

Answer:

The answer is 2 times

Step-by-step explanation:

Well, the line y equals to negative 1 is a horizontal line that crosses through the y axis.

So, if we were to draw that line in how many times is that line intersecting or coming into contact with our graph well it's happening in these two places right here (shown in attached photo) so that would intersect two times.

Thus, The answer is 2 times

-TheUnknownScientist 72

HELP PLEASE!!!
-15 < x - 8 < -4

SOLVE COMPUND INEQUALITY​

Answers

[tex] \sf \: -15 < x - 8 < -4 [/tex]

Add 8 to all parts

[tex]\sf \longmapsto−15+8<x−8+8<−4+8[/tex]

[tex]\sf \longmapsto−7<x<4[/tex]

[tex] \boxed{\sf−7<x<4 }[/tex]

Graph attached

3. Annie bought a skirt that was originally priced at $32, but she had a coupon for 35% off.
a.
How much money did she spend?

Answers

Answer:

$20.8

Step-by-step explanation:

Let's see how much she would have payed if it was 99% off

32 / 100 = 0.32

0.32 * 35 = 11.2

32 - 11.2 = $20.8

ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘᴇᴅ!

ʜᴀᴠᴇ ᴀ ɴɪᴄᴇ ᴅᴀʏ!

Answer:

Step-by-step explanation:


please help me in questions 15 and 21 with their inequalities and graph

Answers

Answer:

x >= 7 OR x < -8

n <= -3 AND n > -6

Step-by-step explanation:

15) 7x - 6 >= 43 OR 10x + 4 < -76

7x >= 43 + 6 OR 10x < -76 - 4

7x >= 49 OR 10x < -80

x >= 7 OR x < -8

you can draw based on this

for >= it is full dot for < it is like circle on the graph

you have to draw both x>= 7 , x < -8 on the same line because it is OR

so both ranges of x are possible

21) 3 + 2n <= -3 AND 1 - 3n < 19

2n <= -3 -3 AND -3n < 19 - 1

2n <= -6 AND -3n < 18

n <= -3 AND 3n > -18

n <= -3 AND n > -6

so it lies between -6 and -3

u can refer pictures below

Solve the math problem

Only solve 3 and 4

Answers

Answer:

nothing is being showed

Step-by-step explanation:

Answer:

Step-by-step explanation:

3) Cost of o balloons = 0

4) It represents a proportional relation ship.

Reason

[tex]\dfrac{25.50}{3}=\dfrac{42.50}{5}=\dfrac{59.50}{7}=\dfrac{76.50}{9}=8.5[/tex]

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