Mathematics High School

Krista bought 35 feet of ribbon at the store. The ribbon cost $2 per linear
foot. The sales tax was 8%. If Krista paid with a $100.00 bill, how much
change should she have received? *

Answers

Answer 1

Answer:

$24.40

Step-by-step explanation:

take 35*2 to get the total (70)

take 8% (for the sales tax) or 0.08 times $70 to get 5.6

take 5.6 plus 70 = 75.60

take 100 minus 75.60 = $24.40

Related Questions

5= 3j + 2
can somebody help me?

Answers

Answer:

j=1

Step-by-step explanation:

5=3j+2

3j=3

j=1

$745 is deposited into an account that earns 4% simple interest for 8 years.
How much interest is earned in 1 year?

Answers

9514 1404 393

Answer:

  $29.80

Step-by-step explanation:

The interest earned in 1 year is ...

  I = Prt

  I = $745·0.04·1 = $29.80

$29.80 interest is earned in 1 year.

A circle has a diameter of 28 mm. What is its circumference?

Use 3.14 for 1, and do not round your answer. Be sure to include the correct unit in your answer.

Answers

Answer: C=87.92 mm

Explanation: We can find the circumference using C=πd.

When using 3.14 for π, we will simply have C=3.14*28, which equals 87.92mm.

If each 2 cm on the scale drawing equals 10 feet, what are the actual dimensions of the room? (5 points) Length = 11 feet, width = 9 feet Length = 30 feet, width = 20 feet Length = 8 feet, width = 12 feet Length = 22 feet, width = 20 feet

Answers

Answer:

c and i blue

Step-by-step explanation:

Find the equation of a line that contains the points (4,−1) and (−1,−4). Write the equation in slope-intercept form, using fractions when required.

Answers

Answer:

y = 3/5x - 17/5

Step-by-step explanation:

slope formula: (y₂ - y₁) / (x₂ - x₁)

First, plug in these values of the two given points.

(-4 - (-1)) / (-1 - 4)

Simplify within the parentheses.

(-4 + 1) / (-1 - 4)

(-3) / (-5)

3/5

This is your slope. Plug this into a standard slope-intercept equation: y = mx + b

To find b, we want to plug in a value that we know is on this line: in this case, I will use the second point (-1, -4). Plug in the x and y values into the x and y of the standard equation.

-4 = 3/5(-1) + b

Multiply.

-4 = -3/5 + b

Add 3/5 to both sides. -- To add it easier, convert 4 to a have a denominator of 5.

-20/5 = -3/5 + b

-20/5 + 3/5 = b

-17/5 = b

Now, plug this into your standard equation.

y = 3/5x - 17/5

Check this equation by plugging in the other point you did not use (4, -1)

-1 = 3/5(4) - 17/5

-1 = 12/5 - 17/5

-1 = -5/5

-1 = -1

Your answer is correct!

Hope this helps!

Could someone help me with this? It would be greatly appreciated! (Photo Attached)

Answers

Answer:

A

Step-by-step explanation:

move 4x to the other side making it -4x

It takes a turtle 3 ¼ hours to walk 1 ½ miles. How many hours does it take to walk one mile?

Answers

Answer: 2.17 hours

Step-by-step explanation:

Answer:

2.17 hours

Step-by-step explanation:

least common denominator of 1/5 and 1/10​

Answers

1/5 and 1/10
1/5 cannot be broken down anymore.
Therefore, what is equal to or less than 1/10 that 1/5 can reach? 1/10.

1/10 is the least common denominator.

Step-by-step explanation:

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Suppose a city with population 300,000 has been growing at a rate of 2% per year. If this rate​ continues, find the population of this city in 20 years
I need help solving this

Answers

300,000x0.02=6000
6000x20=120,000
The answer is 120,000

Answer:

the answer is 445,784

Step-by-step explanation:

The population y after x years of growth with the growth rate r and the original population C can be found using the exponential growth​ formula, . Substitute the decimal equivalent for the percent growth rate per year for r.

Write a Linear Equation in
Point-Slope Form.
m = -5
(-3, – 7)

Answers

Answer:    y + 7 = -5(x + 3)

==================================

Work Shown:

m = -5 is the slope

(x1,y1) = (-3,-7) is the point the line goes through

Plug this into the point slope form below and simplify.

y - y1 = m(x - x1)

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

y + 7 = -5(x + 3)

Side note: If we solved for y, we'd get y = -5x - 22 showing that -22 is the y intercept.

2x-1-(-x+3) = 6-2x SHOW STEPS....DUE TODAY

Answers

Answer:

x=2

Step-by-step explanation:

Simplify both sides of the equation.

2x−1−(−x + 3)=6−2x

(Distribute the Negative Sign)

2x−1 + −1(−x + 3)=6−2x

2x + −1 + −1(−x) + (−1)(3)=6−2x

2x + −1 + x + −3=6−2x

2x + −1 + x + −3=6 + −2x

(Combine Like Terms)

(2x + x) + (−1 + −3)=−2x+6

3x + −4=−2x + 6

3x−4=−2x + 6

Add 2x to both sides.

3x−4 + 2x=−2x + 6 + 2x

5x−4=6

Add 4 to both sides.

5x−4 + 4=6 + 4

5x=10

Divide both sides by 5.

5x/5=10/5

x=2

What is the volume of the sphere with the radius of 9 and round to the hundredths​

Answers

Answer:

3046.389 units

Step-by-step explanation:

Given data

r=9units

Volume of sphere

V= 4/3πr^3

substitute

V= 4/3*3.142*9^3

V=1.33*3.142*729

V=3046.388 units

Hence the volume is 3046.389 units

I will give Brainliest To whoever answers plus 10 points


1+1

Answers

2 ldjfodngksnglsnckd thanks for free points

Find all solutions to (x+5)(2x-3). Explain or show your reasoning.

Answers

first you do x multiply 2x to get 2x^2
then you do x multiply-3 to get -3x
then 5 multiply 2x so you get 10x
then you do 5 multiply-3 to get -15

then you join it together to get
2x^2+10x-3x-15
then simply to get 2x^2+7x-15
and that should be your answer

What is the value of the following expression if q = 10?
24 divided by (q-2)
HELPPP

Answers

Answer:

(B) 3

Step-by-step explanation:

24/(10-2)

24/8 is 3

Last month Albert earned half of what Betty earned, while Betty earned $5000 more than what Calvin earned. If Donna earned twice what Calvin earned and Albert and Betty together earned $900 more than what Calvin and Donna earned together, how much did each person earn?

Answers

Answer:

Calving earning = 4400

Betty earning = 9400

Albert earning = 4700

Donna = 8800

Step-by-step explanation:

Given that :

Calving earning = c

Betty earning = c + 5000

Albert earning = (c + 5000) /2

Donna = 2c

c + 5000 + (c + 5000) /2 = 900 + c + 2c

c + 5000 + 0.5c + 2500 = 900 + 3c

1.5c + 7500 = 900 + 3c

7500 - 900 = 3c - 1.5c

6600 = 1.5c

c = 6600 / 1.5

c = 4400

Calving earning = c = 4400

Betty earning = 4400 + 5000 = 9400

Albert earning = (4400 + 5000) /2 = 4700

Donna = 2(4400) = 8800

22+n=−12
pls help me im kinda confused

Answers

Answer:

-34

Step-by-step explanation:

22+n=-12

n=-12-22

n=-34

When you bring a positive constant to the other side of the equal sign it goes negative and vise versa. Then you combine like terms.

Please follow me!!!! Hope this helps!!! Have a wonderful day :)

x + y = 4
2x - 5y = 15
Graphing

Answers

Answer:

Step-by-step explanation:

5x + 5y = 20

2x - 5y = 15

7x = 35

x = 5

5 + y = 4

y = -1

(5, -1)

a quotient that is between 8÷0.001 and 8÷110.

Answers

Answer:

Step-by-step explanation:

I don't actually know if this is what you want but

8 divided by 0.001 is 8000

and

8 divided by 110 is 0.07272727272727272

I hope this helps

Miguel read 1 page on Friday, 3 pages on Saturday, 9 pages on Sunday, and 27 pages on Monday. If this pattern continues, how many pages will Miguel read on Tuesday?

Answers

Answer:

81

Step-by-step explanation:

Miguel is reading 3x the pages everyday. 1x3=3 3x3=9 9x3=27 27x3=81

Convert the equation `5x+2y=-8`into slope-intercept form.

Answers


Bradley C.
Apr 22, 2018
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Answer:

y= -2.5x-4

Step-by-step explanation:

we have to isolate our y

subtract 5x from 5x+2y=-8 and move it to the right side

2y= -5x-8

divide everything by 2

y=-2.5x-4

I hope this helped you :)

Zoe buys a new car that is valued at $24,000. The car will depreciate at
a rate of 1% per month. What is the value of the car after 6 months?

Answers

Answer:

120

Step-by-step explanation:

Principal = 24,000

Rate = 1%

Time = 6 months = 0.5

Simple Interest = 24000×1×0.5 ÷ 100

= 120

help pleAsee zknsmfm​

Answers

Answer:

C

Step-by-step explanation:

(x+2) * x

X^2 +2x

the answer to this question is C

Plz help I’m confused
Geometry 15 points

Use the Law of Detachment and the Law of Syllogism to draw a conclusion from the three given statements.

If an elephant weighs more than 2000 pounds, then it weighs more than Jill's car.
If something weighs more than Jill's car, then it is too heavy for the bridge.
Smiley the elephant weighs 2150 pounds.

Answers

Smiley the elephant is too heavy for the bridge.

I think that’s it

Which of the following is a decomposition reaction?
reactant plus reactant yields product
reaciant minus reactant yields product
reactant yields product plus product reactant yields product times product

Answers

Answer:

Reactant plus reactant yields product.

Step-by-step explanation:

A decomposition reaction starts from a single substance and produces more than one substance. One substance as a reactant and more than one substance as the products is the key characteristic of a decomposition reaction.

Hope this helps.

7. The figure shows a right rectangular prism whose base is a square...

Answers

Answer:

D

Step-by-step explanation:

Round to the nearest tenth.

x=

y=

Answers

Sin 55 = x/21 —> x = 21* sin55 = 17.2
Cos 55 = y/21 —> y= 21 * cos 55=12.0
Can you mark it brainliest?

HELP PLEASE .... If the geometric mean between 3 and x is 6, find the value of x.

Answers

Answer:

12

Step-by-step explanation:

1.  3/6 = 6/x

2.  Cross multiply:  3x=36

3.  x=12

James, Priya and slobhan work in a grocery store. James makes $7.00 per hour. Priya makes 20% more than James, and slobhan makes 15% less than Priya. How much does Slobhan make per hour?

he makes $_______ per hour.

is 7.20 correct? ​

Answers

7.20 is the correct answer to the problem.

Please help me with this question. Thank you :)

Answers

80°...................
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