Mathematics High School


C gives the cost, in dollars, of a cafeteria meal plan as a function of the number of meals
purchased, n. The function iſ represented by the equation C(n) = 4 + 3n.
1. Find a value of n such that C(n) = 31 is true.

Answers

Answer 1

Answer:

9

Step-by-step explanation:

First, write the equation.

C(n) = 4 + 3n

We know that C(n) = 31, so we can substitute it.

31 = 4 + 3n

Subtract 4 from both sides to isolate the term with the variable.

27 = 3n

Divide both sides by 3 to get the variable by itself.

9 = n

Answer 2

The value of n such that C(n) = 31 is true is 9

Cost functions

Given the cost in dollars, of a cafeteria meal plan as a function of the number of meals  purchased, n as:

C(n) = 4 + 3n

If the cost value C(n) is 31, hence;

31 = 4 + 3n

3n = 31 - 4

3n = 27

n = 27/3

n = 9

Hence the value of n such that C(n) = 31 is true is 9

Learn more on equations here: https://brainly.com/question/2972832

Related Questions

g(x) = -f(x + 3)?
what is the vertex?

Answers

The vertex would be (-3, 0)

You have to fill a vase 3/4 full, you have a height of 13in and a radius of 6in how much water would need to be poured in order to fill the vase. Need answer very soon, please

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Answer:

Step-by-step explanation:

At the flower store they told her that the vase should be filled 2/3 for the flowers to last the longest. Her cylinder vase has a radius of 3in and a height of 8in. How much water should Mary pour into the vase? Follow • ... Get the right answer, fast. ... No packages or subscriptions, pay only for the time you need.

Solve for x:
- 3x – 9= - 1

Answers

X = -8/3




Djchbcdsndosndh

Answer:

- 8 / 3

Step-by-step explanation:

-3x= - 1 + 9

-3x = 8

x= - 8/3

Write the word sentence as an equation. A number y decreased by 9 is 8 An equation that represents this sentence is​

Answers

Answer:

y-9 = 8

Step-by-step explanation:

2x + 3 + x2, forx: 4

Answers

the answer should be 19

Will give Brainlies!!!
What is the y=mx+b of the equation 3x−2y=12

Answers

Answer:

y=3/2x-6

Step-by-step explanation:

To find the y=mx+b you need to move the y on one side while moving the others on the other side

First, move the 3x to the other side by subtracting by 3x on both sides:

-2y=-3x+12

Divide by -2 on both sides:

y=3/2x-6

Answer:

y=3/2x-6

Step-by-step explanation:

3x-2y=12

isolate the y:

-2y=-3x+12

get rid of the coefficient in front of y by dividing by -2

y=-3/-2x+12/-2

y=3/2x-6

carsen loves to run. she runs 4 miles each day if she wants to run a total of 56 miles how many days shoukd she run? whrite an equation to show this problem along with the answer

Answers

Answer:

the answer mia 14days

Step-by-step explanation:

56divided by 4 equals 14

what is the graph of y = x2 + 8x + 4?

Answers

answer here’s the graph

if a, b, and c are different prime numbers and abc=30, what is the sum of a, b, and c ?

Answers

Answer:

B. 10

Step-by-step explanation:

2 x 3 x 5 = 60

2 + 3 + 5 = 10

Hope that helps!

Cierra spent $3.48 on a dozen donuts. Find the
unit rate. (The cost for ONE donut!)

Answers

Answer:

0.29

Step-by-step explanation:

One dozen = 12

12 donuts for 3.48

3.48/12 = 0.29 per donut

Please help I uploaded a picture

Answers

Answer:

the second one

Step-by-step explanation:

first one is divide

third one is well add

last is add aswell

it would be B. whenever there is an exponent inside the parentheses and on the outside, you will always multiply

Solve for W
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w/4 =68​

Answers

Answer:

w = 17

Step-by-step explanation:

w / 4 = 68

w = 68 * 4

w = 272

Solve for x. (photo included)

Answers

The answer might be 8 but I am just trying to get points

LOL so yea this doesn’t really make sense to me so whoever can help I’ll give you brainliest or whatever

Answers

Answer:

it's a linear problem

Step-by-step explanation:

0=1

1=2

2=3

3=4

4=5

5=6

6=7

7=8

8=9

9=10

Carlos has a $20 bill. He wants to buy his mom something for her birthday. He uses part of the
money to buy a some flowers. The flowers cost $15.99. He also wants to use the rest of the money
to buy some chocolate candies. Each chocolate costs $0.50. Which of these inequalities describes
the situation, where n is the number of chocolates Carlos is able to buy?
A) 15.99 -0.50n S 20
B) 15.99 -0.50n 20
C) 15.99 +0.50ns 20
D) 15.99 +0.50n > 20

Answers

Answer:

D) $15.99 +$0.50n> $20

Step-by-step explanation:

if f (x) = -x - 7 what is f (-3)
Plz help

Answers

Answer:

f(-3) = -4

Step-by-step explanation:

f(-3) = -(-3) - 7

      = 3 - 7

      = -4

solve for the missing side: simplify the radical ​

Answers

Answer:

[tex]x=8\sqrt{5}[/tex]

Step-by-step explanation:

I will assume the following:

You know how to use  the quadratic formulaYou know how to simplify radicalsYou know how to use the pythagorean theorem.

The challenge of this exercise comes from using the pythagorean theorem and setting up a few equations.

Given that we have a segment 36 units long and another segment that is 16, it is trivial to get the other segment, 20. Additionally, there are two sides that I want to name so that way I can make a couple of substitutions. I will call these side a and side b. (see attachment 1)

Now comes with setting up three equations. I will start with the two smaller triangles, using side a and side b. See attachments 2 and 3.

Now with the big triangle. I will set up one last equation. See attachment 4.

Given what we know about attachment 2 and 3, we can make two substitutions. See attachment 5. I assume you know how to do the rest and arrive at your only real solution.

what is the range of possible sizes for x?

Answers

Answer:

0.5 < x < 15.5

Step-by-step explanation:

Triangle Inequality Theorem

Let y and z be two of the side lengths of a triangle. The length of the third side x cannot be any number. It must satisfy all the following restrictions:

x + y > z

x + z > y

y + z > x

Combining the above inequalities, and provided y>z, the third size must satisfy:

y - z < x < y + z

The two side lengths given in the triangle of the figure are y=8.5, z=8.0, thus the possible values of x lie in the interval

8.5 - 8.0 < x < 8.5 + 8.0

0.5 < x < 15.5

Teri earned $18.25 an hour at the semiconductor plant. The payroll deductions reduced her paycheck by $182.50. If her first weekly paycheck was at least $547.50 after the deductions, how many hours did she work that week?

Answers

Answer:

40 hours

Step-by-step explanation:

did 18.25*40 then subtracted 182.50 and it equaled 547.50

Guys I need this in like 3 mins help
Me

Answers

Answer:

A) M =5

B= $2

hope it helped!

Step-by-step explanation:

I think.

Manorialism was a system in which A) boys were trained by a master of farming or trade B) one-third of the farmland was unplanted each season C) peasants were dependent on the lord and his land D) vassals served a lord for protection and his land

Answers

Answer:

C: peasants were dependent on the lord and his land.

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

i did it already.

I NEED HELP FAST PLEASE :)

Answers

Answer:945

Step-by-step explanation:

In 10 years time a father will be twice as old as his daughter. 10 years ago he was six times as old as his daughter. How old is each now?

Answers

Answer: the daughter is 15 and the dad is 40

i think unless my math is wrong

Step-by-step explanation:

Find the slope and y-intercept of the line represented by the table

Answers

Answer:

slope = 3, y intercept = 1

Step-by-step explanation:

2/3(x+6)=-8 whats the value of x?

Answers

Answer:

x=-18

Step-by-step explanation:

Answer:

The answer is -18

Step-by-step explanation:

STEP 1:

[tex]3 \times \frac{2}{3} (x + 6) = 3( - 8)[/tex]

2(x+6) = -24

______________________________________

STEP 2:

Divide both sides by 2:

[tex] \frac{2(x + 6)}{2} = \frac{ - 24}{2} [/tex]

________________________________

STEP 3:

Simplify:

[tex]x + 6 = - 12[/tex]

Subtract 6 from both sides:

[tex]x + 6 - 6 = - 12 - 6[/tex]

________________________________

STEP 4:

[tex]x = - 18[/tex]

Therefore, your answer is -18.

Ask more questions if you don’t understand! :)

what one is it? help pls

Answers

Answer:

(-2, 0)

Step-by-step explanation:

the y-intercept is (-2, 0), therefore that the solution.

how do you cauculate net change ​

Answers

Answer:

You can calculate net change by subtracting the current day's closing price for an asset from the closing price of the previous day!

Step-by-step explanation:

(What net change is) The net change theorem states that when a quantity changes, the final value equals the initial value plus the integral of the rate of change. Net change can be a positive number, a negative number, or zero.

NOT MY ANSWER OR WHATEVER I GOT IT FROM G0OGLE

PLEASE ANSWER ASAP!! Will give brainliest!!

Answers

B!!! hope this helps <3

Find the 9th term of the geometric sequence 9, -27, 81...

Answers

Answer:

a9= 59049

Step-by-step explanation:

Find the r.

R= 81/-27

R= -3

a1= 9

a2= -27

a3= 81

a4= 81*-3= -243

a5= -243*-3= 729

a6= 729*-3= -2187

a7= -2187*-3= 6561

a8= 6561*-3= -19683

a9= -19683*-3= 59049

PLS HELP IM TIMED!!
The sum of the measures of all the interior angles of a regular dodecagon
is 1800°. What is the measure of each of its interior angles?
- A) 150°
- B) 160°
- C) 180°
- D) 192°

Answers

Answer:

A) 150°

Step-by-step explanation:

Hope I helped you

Answer:

its A

Step-by-step explanation:

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