Zach paid $56.50 including sales tax for a book priced at $45. What was the sales tax rate?

Answers

Answer 1

Answer:

25.56% or $11.50

Step-by-step explanation:

I took it and put it in a sales tax calc.


Related Questions

Two coins are tossed and a number cube (dice) is rolled. How many outcomes are
possible?
A. 24
B. 18
C. 12
D. 10

Answers

Answer:

C

Step-by-step explanation:

I tried my best, The coin has 2 outcomes and the dice has 6 so 6 times 2 is 12

Divide.Enter the quotient in the simplest form.

7/10 divided by 4/5

Please hurry

Answers

I think it’s .22 I’m not sure hope this helps :)

Nico gives himself $90 a month to spend on fast food. He spends
$30 a week. The graph represents the amount of money Nico
has left after each week.

Answers

well if he spends $30 a week the the money should last about 3 weeks. so there wold be 3 weeks worth of money each month. so you can assume that he uses $1080 a year. and he buys fast food for 36 weeks.

I REALLY need help! Solve the inequality. State the solution in inequality notation.
2(3x−4)+14>−2(−3x−5)+4x

Answers

Answer:

x<−1

Step-by-step explanation:

Answer:

x < -1

2(3x - 4) + 14 > -2(-3x - 5) + 4x

<=> 6x - 8 + 14 > 2(3x + 5) + 4x

<=> 6x + 6 > 6x + 10 + 4x

<=> 4x + 4 < 0

<=> 4x < -4

<=> x < -1

Someone plz help me

Answers

Answer:

its the second option thats the answer

Based on the scatter plot which is the best prediction of the number of gallons of water used by this business when the cost of water is $180

Answers

Answer:

Step-by-step explanation:

the unit used to measure an angle is called what

Answers

Answer:

prokololoy

Step-by-step explanation:

mag aral ka kase wag puro ml

The unit used to measure an angle is called, degrees

HELP ME PLEASE WITH ANY QUESTION

Answers

Answer:

1.) -9

2.) 1/3 or 0.3

5.) 4

6.) 2.9

Step-by-step explanation:

Given right triangle ABCABC with altitude \overline{BD} BD drawn to hypotenuse ACAC. If BC=10BC=10 and DC=5,DC=5, what is the length of \overline{AC}? AC ?

Answers

Answer: [tex]\overline{AC}=[/tex] 12.5

Step-by-step explanation: The triangle ABC and its altitude [tex]\overline{BD}[/tex] is represented in the figure below.

Altitude is a segment of line that link a vertex and the opposite side, forming a right angle.

So, because of [tex]\overline{BD}[/tex], now we have two similar triangles, which means that ratios of corresponding sides are equal:

[tex]\frac{\overline{BD}}{\overline{BC}} =\frac{\overline{AD}}{\overline{BD}}[/tex]

[tex]\overline{BD}^{2}=\overline{BC}.\overline{AD}[/tex] (1)

This is always true for a right triangle and a altitude drawn to the hypotenuse.

Triangle BDC is also right triangle. So, we can use Pythagorean theorem to determine the missing side.

[tex]\overline{BC}^{2}=\overline{CD}^{2}+\overline{BD}^{2}[/tex]

[tex]\overline{BD}^{2}=\overline{BC}^{2}-\overline{CD}^{2}[/tex] (2)

Substituting (2) into (1):

[tex]\overline{BC}^{2}-\overline{CD}^{2}=\overline{BC}.\overline{AD}[/tex]

We want to find f, so:

[tex]\overline{AD}=\frac{\overline{BC}^{2}-\overline{CD}^{2}}{\overline{BC}}[/tex]

[tex]f=\frac{10^{2}-5^{2}}{10}[/tex]

f = 7.5

The length of [tex]\overline{AC}[/tex] is

[tex]\overline{AC}=f+5[/tex]

[tex]\overline{AC}=7.5+5[/tex]

[tex]\overline{AC}=12.5[/tex]

The length of the hypotenuse of triangle ABC is 12.5 units.

Answer:

x = 20

Step-by-step explanation:

3. In ΔABC, AB = 5 inches and BC = 3 inches. Which of the choices represents all possible values for AC, in inches?

Answers

Answer:

2< AC<8

Step-by-step explanation:

For a triangle to exits sum of two sides must always be greater than the the third side

⇒ AC<  AB+ BC =5+3=8 in

⇒AC<8 in

Also, the  difference of the two sides must be smaller than the length of third side

⇒ AC> | AB-BC| = |5-3| =2

AC> 2 in

therefore,  we can say  2< AC<8. Hence, AC can takes 3,4,5,6 values

What is the slope of the line with the given equation: 2x + y = 5​

Answers

Answer:

Using the slope-intercept form, the slope is 2 .

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Divide. 0.996 ÷ 0.12

Answers

Answer:

8.3

Step-by-step explanation:

Answer:

- 0.996 - Percentage increase =

- 0.996 - (12% × - 0.996) =

- 0.996 - 12% × - 0.996 =

(1 - 12%) × - 0.996 =

(100% - 12%) × - 0.996 =

88% × - 0.996 =

88 ÷ 100 × - 0.996 =

88 × - 0.996 ÷ 100 =

- 87.648 ÷ 100 =

- 0.87648 ≈

- 0.88

Step-by-step explanation:

pls brainlsit

The cost of metal is proportional to the weight of the metal. Martin buys 12 pounds of metal for $33.00. Create an equation that can be used to determine the cost, in dollars, c, for m pounds of metal.​

Answers

Answer: 2.75m = c

Step-by-step explanation:

First we need to find the unit price

33 / 12: 2.75$ per pound

2.75m = c

We can test if this equation works

2.75(12) = c

33 = c

Which is correct

Help me please:( I need it

Answers

Answer:

y = 18

Step-by-step explanation:

30² = 24²  + y²

900 = 576 + y²

y = [tex]\sqrt{324}[/tex]

y = 18

A teacher initially plans to take an SRS of size 50 from his large high school and calculate the sample mean x bar of student GPAs. Later, the teacher decides to increase the sample size so that the standard deviation of the sampling distribution of x bar will be half as big as when using a sample size of 50. What sample size should the teacher use?
57
100
150
200
354​

Answers

Answer:

should be 200 because I think you quadrupole it and 50 x 4 =200

Step-by-step explanation:

Answer:

The answer is 200. 50 * 4 = 200.

Heather invests $3572 in a retirement account with a fixed annual rate of 5% compounded 4 times per year what will the account balance be after 16 years

Answers

Answer:

$7910.3

Step-by-step explanation:

Given data

P=$3572

n=4

T=16 years

R= 5%

The compound interest is expressed as

A= P(1+r/n)^nt

Substitute

A=3572(1+0.05/4)^16*4

A=3572(1+0.0125)^64

A=3572(1.0125)^64

A=3572*2.21453241061

A=$7910.3

i will give brainliest
Find the slope of the line on the graph.
Write your answer as a fraction or a whole
number, not a mixed number or decimal.

Answers

Answer:2/6 i might be wrong but whats the answer choices?

Step-by-step explanation:

Answer:

Step-by-step explanation:

You can see that (0,4) and (1,1) are points on the line. Use their coordinates to determine the slope of the line.

slope = (difference of y-coordinates)/(difference of x-coordinates)

= (1-4)/(1-0)

= -3

If you deposit $6000 into an account paying 8% annual interest compounded monthly, how much money will be in the account after 7 years?

Answers

Answer:

$10278

Step-by-step explanation:

Given data

P= $6000

R= 8%

T= 7 years

The compound interest formula is

A=P(1+r)^t

substitute

A=6000(1+0.08)^7

A=6000(1.08)^7

A=6000*1.713

A=$10278

please, please help, if you could show work too that would be so appreciated <33

Answers

Answer:

go to calculator.net

Step-by-step explanation:

Answer:

60 degrees

Step-by-step explanation:

There is an alternate angle, which would make the other angle on the same horizontal line as x 120 degrees, thus leaving 60 degrees.

20 POINTS AND BRAINLIEST

Answers

Answer:

1. 234.57

2.150.79

3. too lazy... lol sorry

Step-by-step explanation:

I need help with some math?????????​

Answers

-14

is the first one, remember 1- (-15) is like 1-15 but the you put the - on the14 so you get-14, hope this helped

please help
Which of these describes the equation 3x + 7y = 8?
Select each correct answer.
A function
B. linear
C. nonlinear
D. proportional
E.
When x is 0, y is
F. When y is 2, x is 2 or -2.

Answers

According to the linear function concept, the correct answer is:

B. linear

Additionally:

When x = 0, [tex]\frac{8}{7}[/tex].When y = 2, x = -2.

What is a linear function?

A linear function is modeled by:

[tex]y = mx + b[/tex]

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0.

In this problem, the function is:

[tex]3x + 7y = 8[/tex]

Placing into standard format:

[tex]7y = 8 - 3x[/tex]

[tex]y = \frac{8}{7} - \frac{3x}{7}[/tex]

Hence it is a linear function.

When x = 0:

[tex]y = \frac{8}{7} - \frac{3(0)}{7} = \frac{8}{7}[/tex]

When y = 2:

[tex]y = \frac{8}{7} - \frac{3x}{7}[/tex]

[tex]2 = \frac{8}{7} - \frac{3x}{7}[/tex]

[tex]8 - 3x = 14[/tex]

[tex]3x = -6[/tex]

[tex]x = -\frac{6}{3}[/tex]

[tex]x = -2[/tex]

You can learn more about linear functions at https://brainly.com/question/25898120

Which numbers go in the red and blue box to make the same sum(ADDING INTEGERS)!!

Answers

Answer:

positive 3 and 7 in the red box and negative 6 and 4 in the blue box hope that helps

Ruby had 30 dollars to spend on 3 gifts. She spent 9 7 10 dollars on gift A and 5 2 5 dollars on gift B. How much money did she have left for gift C?

Answers

Answer:

$14 9/10

Step-by-step explanation:

Ruby had 30 dollars to spend on 3 gifts. She spent 9 7 10 dollars on gift A and 5 2 5 dollars on gift B. How much money did she have left for gift C?

From the above question,

$30 = Gift A + Gift B + Gift C

She spent 9 7/ 10 dollars on gift A and 5 2/5 dollars on gift B.

$30 = $9 7/10 + $5 2/5 + Gift C

Gift C = $30 - ( $9 7/10 + $5 2/5)

Lowest Common Denominator = 10

Gift C = $30 - $14+(7 + 4/10)

Gift C = $30 - $14+(7 + 4/10)

Gift C = $30 - $14+(11/10)

$30 - $14+(1 1/10)

$30 - $15 1/10

Gift C = $14 9/10

Therefore, the amount of money she had left for gift C is $14 9/10

Armando deposits $3,827 into a bank account paying 2.8% interest,
compounded monthly (12 times per year). How much money will he have in
his bank account after 16 years? PLEASE HELP!!

Answers

Answer:

$745,460.8

Step-by-step explanation:

2.8/100 × 3827 = $107.16

monthly = 1/12

[tex]p = \frac{100 \times i}{rt} = \frac{100 \times 107.16}{2.8 \times \frac{1}{12} } = \frac{10716}{0.23} \\ = 46591.3[/tex]

$46,591.3 in 1year

16 years; $46,591.3 × 16 = $745,460.8

Solve the system of equations by the substitution method.
X + 8y = 21
3x + 5y = 6

Answers

Step-by-step explanation:

the first one if you are solving for x it will be x=21-8y

if you are solving for y it will be y =21/8 - x/8

the second one will be if you are solving for x  x = 2 -5y/3

solving for y is y=6/5-3x/5

convert 2.5t into pounds

Answers

Answer:

5000 Pounds

Step-by-step explanation:

I'm pretty sure this is the answer if not I'm honestly sorry.

Answer:

5512 lbs

Step-by-step explanation:

The perimeter of triangle ABC is 96. Find the value of x. 4x + 1 2x 3x + 2 perimeter of ABC = 96

Answers

Answer:

4.5is answer

Step-by-step explanation:

perimeter of ABC = 96

4x + 1 2x 3x + 2=96

21x=96

x=96/21=4.5

PLEASE SOMEONE HELP WITH THIS AND EXPLAIN IT!

Answers

Answer: x= 11.15

Step-by-step explanation:

Explanation is in the photo attached

What is the equation of the additive relationship represented by this table?

Enter your answer by filling in the box using an integer.


x y
9 5
12 8

Answers

Answer:

-1

Step-by-step explanation: hope this helps

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