If f(x) = 2x - 5, then f(4) is _____.

Answers

Answer 1
2(4)-5
8-5= 3

Answer is 3
Answer 2
f(4)=2(4)-5 so f(4) is 3

Related Questions

A student traded four pieces of chocolate pour seven pieces of hard candy at this rate how many pieces of chocolate could be treated for 35 pieces of hard candy

Answers

Answer: 20 pieces of chocolate could be treated for 35 pieces of hard candy.

Step-by-step explanation:

Equation of direct proportion between two quantities x and y :

[tex]\dfrac{x_1}{y_1}=\dfrac{x_2}{y_2}[/tex]

Put [tex]x_1=4,\ y_1=7,\ y_2=35, x_2=x[/tex]

[tex]\dfrac{4}{7}=\dfrac{x}{35}\\\\\Rightarrow\ x=\dfrac{35\times4}{7}\\\\\Rightarrow\ x=20[/tex]

Hence, 20 pieces of chocolate could be treated for 35 pieces of hard candy.

Mr. Ramirez purchased 20 concert tickets for a total of $225. The concert tickets cost $15 for adults and $10 for children
under the age of 12.


Write and solve a system of equations to represent the given scenario. Use the variables “a” for adults and “c” for children

plzz help

Answers

Answer:

Mr. Ramirez purchased 20 concert tickets for a total of $225. The concert tickets cost $15 for adults and $10 for children under the age of 12. Part A: Write a system of equations to represent the given scenario. Use the variable "a" for adults and "c" for children. 1.

Step-by-step explanation:

Hope this helps

Please I need help with that, I am desperate. Brainliest for someone who gets it right

Answers

20 or 10 I think I really don’t remember area

A sandwich is 5 1/2 feet long and divided into 1/2 foot pieces. How many pieces of sandwich are there?

Answers

Answer:

11

Step-by-step explanation:

Answer:

11 sandwich pieces

Step-by-step explanation:

For the function f(x)
Find f(4)

Answers

Answer:

12

Step-by-step explanation:

f(x) = 3x

f(4) = 3(4) = 12

just need to sub in the x value :)

Topic: Functions

If you would like to venture further, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

Answer:

12

Step-by-step explanation:

3x x=4

4x3=12

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-6 < -2h + 14 solve for h

Answers

Answer:

10 is more than h

Step-by-step explanation:

sub 14 add  to 6 divid by two switch signs and poof

Answer:

10>h  

Step-by-step explanation:

-6< -2h+14

-6-14<-2h

-20<-2h

 -2 <-2           when you divide by a negative number you must reverse the

10>h                inequality sign


Help me please i don’t wanna fail

Answers

Answer:

B

Step-by-step explanation:

C. Solve for each quotient:
8÷5/8
I Mark brainlies ​

Answers

The exact form is: 64/5

The decimal from is: 12.8

And the Mixed number form is: 12 4/5

Answer:

12.8

Step-by-step explanation:

8÷5/8 is also the same as:

8 x 1/5 x 8

Proof:

Masha’s grandmother lives 250 miles away. How many hours will it take the family to reach grandmother’s house if they are driving at an average speed of 50 miles per hour?

Answers

5 because 250 divided by 50 is 5

use the graph below to determine how many cakes mary sells after 4 hours

Answers

Answer:

8

Step-by-step explanation:

follow the graph

Answer:

D. 8

Step-by-step explanation:

Look for 4 the x axis and go up until you see the dot. Whatever is on the y-axis is your answer(8)

Evaluate each value expression for the given value of x : 4x/3, x=9
FAST PLSSS!!!!!!!!!!!!!

Answers

Answer:

5x

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

how to graph y=-4x+2​

Answers

Since the graph is linear, just find 3 points
(0,2), (1,-2), (-1,6)
And graph the points than draw a line to connect them

Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator.


12 m to 20 m




HELP ME ILL MARK YOU !!

Answers

Answer:

3/5

Step-by-step explanation:

For Emily’s birthday, her father treated her and five friends to a dinner at a restaurant at the mall. Emily and her friends ordered three pizza dinners at $6.25 each and three chicken baskets at $7.50 each. All six people ordered soft drinks costing $1.25 each. The sales tax on the meal was 4.5%, and the tip was 15%. What was the total cost of the meal, including the sales tax and the tip?

Answers

Answer:

58.25

Step-by-step explanation:

C is the total cost of the meal, fifty-eight dollars and twenty-five cents.

First, find the cost of the meal, which is forty-eight dollars and seventy-five cents.

To calculate the amount of the sales tax, use the proportion, amount of sales tax divided by cost of meal equals sales tax rate divided by one hundred.

Substitute the known values. Amount of sales tax divided by forty-eight dollars and seventy-five cents equals four point five divided by one hundred.

Cross multiply. One hundred times amount of the sales tax equals forty-eight dollars and seventy-five cents times four point five.

Divide both sides by one hundred to find that the sales tax equals two dollars and nineteen cents.

Then, to calculate the amount of the tip, use the proportion, amount of tip divided by cost of meal equals tip percent rate divided by one hundred.

Again, substitute the known values into the proportion, amount of tip divided by forty-eight dollars and seventy-five cents equals fifteen divided by one hundred.

Then, cross multiply. One hundred times amount of tip equals forty-eight dollars and seventy-five cents times fifteen.

And, divide both sides by one hundred to find that the tip equals seven dollars and thirty-one cents.

Finally, add the amounts together to find the total cost of the meal was fifty-eight dollars and twenty-five cents.

Answer: 56.25

Step-by-step explanation:

what is the equivalent expression plzz help

Answers

correct answer: the first choice !

write an expression equivalent to 2a + (3/4a + 1/5b) by combining like terms

Answers

Answer: 2 3/4 a + 1/5 b

Step-by-step explanation:

Add the like terms

The solution of the given expression is equal to 7a/4 + b / 5.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given expression is 2a + (3/4a + 1/5b). The given expression will be solved as below,

E = 2a + (3/4a + 1/5b)

E = 2a + (3/4)a + (1/5)b

E = 7a/4 + b / 5

Therefore, the solution of the given expression is equal to 7a/4 + b / 5.

To know more about expression follow

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Macy's charges $12 for an item plus a $10 shipping and handling charge for the order. What is the cost of an order of of 5 of those items?

Answer pls idk get it pls

Answers

Answer:

$72 is your answer

Step-by-step explanation:

hope this helps ♡

An amount P at 6% for 5 years compounded monthly increased to $15000.00. What is P? (Round answer to cents)

Answers

15000 x 1.06^5 = P
P = 11208.87

Which number is greater .
35 or 61

Answers

Answer: 61

Explanation:

Answer:

61

Step-by-step explanation:

Because you need to use the Greater than or less than shortcut

What is the value of x?

Answers

Answer:

x = 18

These two angles are formed by a transversal that cuts through 2 parallel lines. This means that (5x + 2) on line m corresponds to the angle on the right of (5x-2) on line n.

Now that we can see (5x + 2) and (5x - 2) are on a straight line, we can say that (5x + 2) + (5x - 2) = 180

10x + 0 = 180

10x = 180

x = 180/10

x = 18

The answer is x=18 hope this helps

find the ratio of 500 paise to rs.20​

Answers

We know that 100paise=1 rupee

=>500 paise = 5 rs

ratio =5/20=1/4=1:4

hope it helps :)

plz mark as brainliest

Quadratic – vertical compression by a factor of 1/3, vertical shift up 5 units

Answers

Answer:

Step-by-step explanation:

I used a site it won't let me mention... for this graph

This is if "vertical compression by a factor of 1/3, vertical shift up 5 units" translates to...

[tex]f(x)=\frac{1}{3} (x^2+5)[/tex]

The equation that has vertical compression by a factor of 1/3, vertical shift up 5 units will be y = (1/3)x² + 5.

What is the parabola?

It's the locus of a moving point that keeps the same distance between a stationary point and a specified line. The focus is a non-movable point, while the directrix is a non-movable line.

The equation of a quadratic function, of vertex (h, k), is given by:

y = a(x – h)² + k

where a is the leading coefficient.

The vertical compression by a factor of 1/3, vertical shift up 5 units.

a = 3

(h, k) = (0, 5)

Then the equation will be

y = 1/3(x – 0)² + 5

y = (1/3)x² + 5

More about the parabola link is given below.

https://brainly.com/question/8495504

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Pls help will give brainliest and be very detailed. What is 11+9

Answers

Answer:

20

Step-by-step explanation:

11+9=20 :)

Answer:

ok so 9+11 is 20. you start with 11 and add 9 to it using your fingers if needed:

11,12,13,14,15,16,17,18,19,20

Step-by-step explanation:

Find m∠BOC in the figure if m∠AOC = 77°.
Question 18 options:

A)

71°

B)

18°

C)

65°

D)

59°

Answers

Answer:

Answer of this is... D... 59

According to the figure the value of ∠BOC is 59. So, the correct option is option D.

Given:

∠AOC = 77°

According to the figure ∠AOB = 3X and ∠BOC = 7X + 17

∠AOC = ∠AOB + ∠BOC.

Plugging the values in this equation.

Then we get,

77 = 3X + 7X + 17

Subtract 17 on both sides.

77 - 17 =  3X + 7X + 17 - 17

60 = 3X + 7X

After simplify we get,

60 = 10x.

X = 6

To find the ∠BOC.

∠BOC = 7X + 17.

Plugging the value of X in this equation.

∠BOC = 7 * 6 + 17

∠BOC = 42 + 17

∠BOC  = 59.

Therefore, the value of ∠BOC is 59.

Learn more about Angle here:

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As a salesclerk, you earn $75 per week plus $2 per sale. You want your weekly
pay to be at least $125. Which inequality is correct?
(a) 2x + 75 < 125 (c) 75 + 2x > 125
(b) 2x + 75 < 125
(d) 75 + 2x > 125

Answers

the correct answer is c. i hope this helped!!

Solve for s.
S + 3s - 4 = 16
S =
Submit

Answers

The answer is 5 because 16+4=20 and 3s + s = 4s so you’re left with 4s = 20 and I know that 4 times 5 is 20.
ANSWER: S=5

Can anyone help me please?

Answers

1. 40,60,80

2.48,35,23.7

Solve for the value of s.
58
(s-4)

Answers

Answer:

Step-by-step explanation:

58(s-4)=0

58s-232=0

58s=232

S =232/58

S=4

Value of a is 4.

How do you prove 2 lines are congruent

Answers

Answer:If they have the same length or if their parallel but that’s not always the case.

Step-by-step explanation:

Answer:

If the two lines have the same length and width.

Step-by-step explanation:

Correct me if I am wrong but I am pretty confident that it is the answer by going from logic.

Write a function g whose graph represents a reflection in the y-axis of the graph of f(x)=|2x−1|+3.

Answers

Answer:

1) y = -f(x) (This is the reflection about the x-axis of the graph y = f(x).) That is for every point (x, y) there is a point (x, -y). Look at the example graphs below of y = x2 and y = -x2. Notice the green graph is simply the same as the blue graph folded down

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