Mathematics High School

The sales tax in one state is 3%. Write a function rule for finding the total cost of an item with selling price x. Then find the total cost of a CD player with a selling price of $150.


f(x) = x – 3; $148.97

f(x) = 3 + x; $151.03

f(x) = 0.03x; $4.50

f(x) = 1.03x; $154.50

Answers

Answer 1

Answer: brainly.... D.    f(x) = 1.03x; $154.50

ok so the cd player cost

$150 the sales taxs is 7% so you do

7% of 150= $10.50

so you add

$150+$10.50= $160.50

so the total cost is $160.50

hope this help

plz mark me brainliest i really need it. :)

Step-by-step explanation: 2 answers from Brainly

1:  y=3/100x

y= 3/100 (150)

y=4.5

150+4.5=154.50 total cost of CD player.

Therefore that is the answer. Please mark as brainliest and give a thanks.

2:  F(x)= 1.03x; $154.50

Related Questions

I am thinking of a number i multiply by 11 and add 22 i get the same answer if i miltiply by 4 and add 113 whats my number

Answers

Answer: 13

Step-by-step explanation:

Let the number that in thinking of be represented by x.

I multiply by 11 and add 22 will give the same answer as multiplying by 4 and adding 113. This.csn be firmed into an equation as:

(11 × x) + 22 = (4 × x) + 113

11x + 22 = 4x + 113

Collect like terms

11x - 4x = 113 - 22

7x = 91

x = 91/7

x = 13.

The number is 13

A door is 6 feet 6 inches high and 38 inches
wide.Can a thin mattress, 7 feet wide, be carried
through the door diagonally? How do you know
for sure?

Answers

The mattress can fit through the door.
The door is 78 inches tall and 38 inches wide. If you do the Pythagorean theorem with these numbers you get the hypotenuse of 86.76, which is larger than the width of the mattress.
38^2+78^2=c^2
1444+6084=7528
Take square root of 7528, which is 86.76

Express 11% as a fraction in simplest form.

-1/11
-100/11
-1/9
-11/100

11/100 is wrong i got it wrong:/

Answers

Answer:

11/100 is not wrong

Step-by-step explanation:

Convert the following into a fraction:

11%

Hint: | "Percent" (%) means "out of 100".

11% = 11/100:

Answer: 11/100

Matt was given $14 for a good report card. He now has $23. How much money did he start with?

Answers

Answer:

9 dollars

Step-by-step explanation:

do 14 - 23

$9. $23 minus the $14 he was given equals $9.

2. What is the y-intercept of the linear
equation represented by the table?
X
у
150
1047
125
872
100
697
75
522

Answers

Answer:

Step-by-step explanation:

4x − 3= −12x + 13​

4x + 12x = 13 + 3

16x = 16

x = 1

Hence, the answer is C.


PLSS PLSSS HELP!!!!!!

Answers

Answer:

you can place a point on any number to the left of -1 on the number line, just don't place one on it because that would be equal to.

Plz help me with these two math problems

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Given the function representing the number of customers on day x

f(x) = 3ˣ

Part A)

We need to determine the day when there are 243 customers.

so substitute f(x) = 243 in the function

[tex]f\left(x\right)\:=\:3^x[/tex]

Part B)

Solving the equation

[tex]f\left(x\right)\:=\:3^x[/tex]

[tex]243\:=\:3^x[/tex]

as 2⁵ = 243, so

[tex]\:2^5=3^x\:[/tex]

x = 5

The value of x = 5

Part C)

As the value of x = 5

Therefore, on the 5th day, there would be 243 customers.

Find the 29th term in the arithmetic sequence: -13, -6, 1, 8........

Answers

Answer:

183

Step-by-step explanation:

a₁ = -13

common difference = a₂ - a₁

                                 = (-6) - (-13)

                                = -6 + 13

                               d = 7

nth term = a₁ + (n - 1)d

29th term = -13 + 28 * 7

               = -13 + 196

               = 183

What is the value of x in the equation Negative StartFraction 5 over 8 EndFraction x = negative 160 ?

Answers

Answer:

Step-by-step explanation:

-⅝X = -160

X = 160(8/5) = 256

Answer:

D

Step-by-step explanation:

Use the number line below to answer the question which statement about the location of point G on the number line is true??
Can someone help me please ? I’m struggling. Lol

Answers

Answer:

C

PLZ MARK AS BRAINLIEST

C I need points so yea I assume it’s C since other guy said it’s C have a good rest of y’all days and hope y’all pass them tests

The regular price for a pair of jeans is $36. the sale price is 45% off the regular price. What is the sale price of jeans?

Answers

Answer:

16.2

Step-by-step explanation:

Change the 45% into 0.45 and then multiply it by 36.

Anyone know how to do this? I need an answer fast show work please it’s 11:19 for me in California in 40 minutes I won’t need the answer no more cuz it will close

Answers

Answer:

Answer is 30.25

hope it helps u

Answer:

The value of S is 11.

Step-by-step explanation:

Okay, I found this answer due to that A = S to the power of 2 right? Then, A = 121 m2, so S2 is 121 square rooted, meaning what number is multiplied the same to get 121? 11. And if you multiply 11 by 11, you get 121.

jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. When the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax. After tax, the total is 45.99. What percentage of the subtotal is the total?

Answers

Answer:

To find out the percentage, you do (3.99/42) * 100.

Step-by-step explanation:

Paul was thinking of a number. Paul doubles it and adds 8.7 to get an answer of 23.4. Form an

Answers

Assuming it says form an equation it’s
2x +8.7 = 23.4
In that case he was thinking of the number 7.35

Which of these cannot represent the lengths of the sides of a right triangle?


A.)3 ft, 4 ft, 5 ft
B.)6 in., 8 in., 10 in.
C.)16 cm, 63 cm, 65 cm
D.)8 m, 9 m, 10 m

Answers

D because it is talking about meters hope this helps
D can’t represent the sides of a right triangle

what is 3x+7=-5(x+3)

Answers

Answer:

8x=-11/4

Step-by-step explanation:

3x+7=-5(x+3)

3x+7=-5x-15

3x+5x+7=-5x+5x-15

8x+7=-15

8x+7-7=-15-7

8x=-22/8

8x=-11/4

X= - 11/4 , Decimal Form= x= -2.75, mixed number form 2 3/4.

What distance is traveled by a car going 80 km/h in a time of 4 hours 30 minutes? (please say the equation you used as well)

Answers

Answer:

360 miles

Step-by-step explanation:

(4 x 80) + 40

Can I have brainlyiest

The two triangles above are similar. If r = 19, v = 18, and u = 21, what is the value of s? Round answer to the nearest hundredth (2 decimal places).

Answers

Answer:

s=22.17

Step-by-step explanation:

v/r=u/s

18/19=21/s

18s=21(19)

18s=399

18s/18=399/18

s=22.17

how many square feet of outdoor carpet will we need for this hole?​

Answers

MY WORK:

First, you would cut it up into different parts/shapes

(I cut it up into rectangles)

Then, you would find the area of each.

The bottom rectangle: 10 ( 5 times 2 )

The middle rectangle: 12 ( 6 times 2 )

The top rectangle: 8 ( 4 times 2 )

Lastly, you would add!

10 + 12 + 8 = 30

Therefore, the answer is...

30!

My apologies if this is wrong but I hope I helped a little bit!

Which expression is equivalent to (x2 – 2x)(3x2 + 4x - 7)?

Answers

Answer:

You have it right, its A

Answer:

Step-by-step explanation:

it A

The price of a watch was increased by 20% to £162.
What was the price before the increase?

Answers

Answer:

hii

shshjsjjsjsjs

hshsh

ssddff

f

f

off

if

f

off

f

f

d

ddf

y

5

e

w

s

xf

120%=162
⬇️/12
10%=13.5
⬇️x10
100%=135

Answer=£135

The directions on a sewing pattern say to cut an extra 15% of fabric to account for error. Chloe needs 0.75 yard of fabric to make a skirt, so she cuts 0.1125 yard. Did Chloe cut the correct amount of fabric? Why or why not?

Answers

Answer:

Step-by-step explanation:

for an error. Chloe needs a 0.75 yard of fabric to make a skirt, so she cuts - 77… ... The directions on a sewing pattern say to cut a extra 15% of fabric to account for an error. Chloe needs a ... yard. Did Chloe cut the correct amount of fabric? ... No, Chloe cut only 15% of the .75 yards of fabric she needed

Solve the equation for the red variable

Answers

Answer:

Step-by-step explanation:

Solve for m (which represents mass):

          e

m = --------

        c^2

30 points!!

Please help!!!!

7+3^2(-5+1)divided by 2

Answers

Answer:

7+3^2(-5+1) divided by 2 is -11

Answer:

-11

Step-by-step explanation:

I am pretty sure -11 is correct

mouse borrowed 6,000$

Answers

Answer:

huh

Step-by-step explanation:

Answer:

yeah what else there has to be more

PLEASE HELP EASY 6TH GRADE MATH (pic is the possible answers) select the equation that represents the problem. let x represent the unknown. ms harris divided the 32 students in her class into groups. there are 8 students in each group. how many groups are there?

Answers

Answer:

a

Step-by-step explanation:

8x=32

Answer:

A. 8x = 32

Step-by-step explanation:

Taylor is making cookies. The recipe calls for 2/3 cups of sugar. She wants to increase the recipe by 1 1/2 more cups of sugar and use 2/3 cups of sugar to sprinkle onto the cookies and 1 1/2 cups of sugar for the cookie dough.
How many TOTAL cups of sugar would Taylor need after she adds 1 1/2 more cups of sugar to the recipe?

Answers

Answer:

Sex kar ha to bata do bhai yaar follw karo bata dungi

7x + 8y = -6
slope intercept form

Answers

Answer:

y=-7/8x-3/4

Step-by-step explanation:

8y=-7x-6

y=-7/8x-6/8

y=-7x-3/4

find an equivalent expression to 5+9

Answers

Since 5 + 9 is 14 you can use ANY expression that has the same final value/ sum

x + 14 = 26, x =

I need help please​

Answers

x=12

hope this helps :))

Answer:

x = 12

Step-by-step explanation:

subtract 12 from the 26 and you get 14 so x = 12

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