10) Colleen paid $19.85 per hour for tennis lessons for 3 hours of instruction. If she gave
the instructor $60.00, how much change did she get back?

Answers

Answer 1

Answer:

40.15$

Step-by-step explanation:

subtract 20 from 60, you get 40. then add the 0.15 back. bam! 40.15$. hope this helped!! ^___^


Related Questions

5. Solve the equation - 4(x - 1) + 6x = 2(17 -- x) for x.

Answers

Answer:

x = 15/2 or 7.5

Step-by-step explanation:

-4 (x - 1) + 6x = 2(17 - x)

First, distribute the -4 and 2, and remember that multiplying two negatives make a positive.

-4x + 4 + 6x = 34 - 2x

Combine like terms

2x + 4 = 34 - 2x

Subtract 4 from both sides

2x = 30 - 2x

Add 2x to both sides

4x = 30

Finally, divide both sides by 4

x = 15/2 or 7.5

Two candles were lit and are burning. Candle A has
an initial height of 10 inches and burning down at a
rate of 1.5 inches per hour. Candle B is burning down
at a rate of 0.5 inches per hour and has an initial
height of 6 inches. Let t represent time in hours and
h represent the total height of the candle.

Answers

Answer:

A - 6 hours and 40 minutes

B - 12 hours

Step-by-step explanation:

Candle A - After 6 hours: the candle will be 1 inch tall, because 6 times 1.5 = 9. You need an extra 40 minutes for the candle to burn completely, because 10/1.5 = 6 and 2/3

Candle B - After 12 hours, the candle will be completely burned, because 6/.5 = 12.

Equation - Initial height/inches burned per hour = time it takes for cnadle to burn down completely

During the months of August and September the total rainfall I August was 0.6 inch more than the amount f rainfall in September, how much rain fell in each month?

Answers

Answer:

August = 3.4

September = 2.8

Step-by-step explanation:

Given

[tex]Total = 6.2\ in[/tex]

Represent August with A and September with S.

So,

[tex]A =S + 0.6[/tex]

Required

Amount of rainfall in each month.

This is calculated using:

[tex]Total = August + September[/tex]

[tex]6.2= A + S[/tex]

Recall that: A = S + 0.6. Substitute

[tex]6.2= S + 0.6 + S[/tex]

[tex]6.2= 2S + 0.6[/tex]

Collect Like Terms

[tex]2S = 6.2 - 0.6[/tex]

[tex]2S =5.6[/tex]

Solve for S

[tex]S = 5.6/2[/tex]

[tex]S = 2.8[/tex]

Substitute 2.8 for S in [tex]A =S + 0.6[/tex]

[tex]A = 2.8 + 0.6[/tex]

[tex]A = 3.4[/tex]

What type of transformation transforms (a, b) to (-a, b)?

a reflection over the y-axis
a translation of 1 unit down
a reflection over the x-axis
a translation of 1 unit up

Answers

Answer:

A reflection over the y axis .

Step-by-step explanation:

Given  : Transforms (a,b) to (-a,b).

To find : What type of transformation.

Solution : We have given

Parent function : (a,b) .

Transformed  : (-a ,b).

Transformation rule of reflection over y axis : ( x, y) →→ ( -x ,y).

Then we can say in transformation (a,b) →→→→ (-a,b).

Therefore, A reflection over the y axis

Step-by-step explanation:

plz brain list

Answer:

hes right i took the test

Step-by-step explanation:

Roger made a table showing how he spent his time in one day. How many days
will go by before Rodger has slept the equivalent of one day. Explain how you found your answer!
Data:
work : 1/3 day
sleep : 3/8 day
meals: 1/8 day
computer : 1/6 day

PLSSS.... Answer must be whole #

Answers

Answer:

Roger will have to sleep 2.667 days.

Step-by-step explanation:

If Roger sleeps 3 / 8 of a day in one day.

Then for Roger to sleep the equivalent of one day he will have to sleep

=

What is the scale factor of this dilation?

A:2/3
B:1 1/2
C:3
D:5


Please hurry it’s timed

Answers

Answer:

1 1/2

B

Step-by-step explanation:

What does modal,median and mean, mean

Answers

Answer:

Mode is the number that occurs the most in the data

the median is when you line up all the numbers in order and the median is the middle one

mean is the average: add all the numbers in the data together and then divide it by the amount of numbers

Paul got 15 out of 20 questions correct on his test. What percent of the questions did Paul get correct?

Answers

75%

15/20 = 75/100 (you just have to multiply both top and bottom by five)

Answer:75%

Step-by-step explanation:

To make a fraction into a percent you have to multiply it by 100

So: 15/20 x 100=15x5=75 so he got 75% of his problems right

Determine whether each pair of figures is similar. If so, write the similarity statement and scale factor. If not, explain why. Number 1 and 2 on the second part.

Answers

9514 1404 393

Answer:

JKLM ~ QRSP, scale factor 0.6ΔABC ~ ΔUVT, scale factor 1.5

Step-by-step explanation:

We can write the similarity statements by naming vertices in order of increasing numbers of arcs, starting with the one having a single arc. Then we can express the side lengths as a reduced ratio, in the same order.

1. JKLM ~ QRSP

  JK : KL : LM : MJ = 20 : 15 : 24 : 25

  QR : RS : SP : PQ = 12 : 9 : 14.4 : 15 = 20 : 15 : 24 : 25 (same ratios)

The scale factor is 12/20 = 0.6.

__

2. ΔABC ~ ΔUVT

  AB : BC : CA = 16 : 14 : 12 = 8 : 7 : 6

  UV : VT : TU = 24 : 21 : 18 = 8 : 7 : 6 (same ratios)

The scale factor is 24/16 = 1.5.

I would appreciate it please I need help

Answers

Answer:

B. n + 9

Step-by-step explanation:

Given:

n² + 3n - 54

Let's factorize

n² + 9n - 6n - 54

n(n + 9) -6(n + 9)

(n - 6)(n + 9)

Therefore, out if the options given, n + 9 is the expression of the factor of n² + 3n - 54.

The equation w(t)=100+40t models the weight (w(t) in grams) of a male white laboratory rat t weeks after its birth.

What is the rate of change? What does it mean in the context of the problem?
What is the y-intercept? What does it represent in the context of the problem?

Answers

Answer:

Step-by-step explanation:

9. Jenny is selling t-shirts to raise money for the cheerleading team. She sells long sleeve t-shirts
for $18 and short sleeve t-shirts for $12. At the first football game Jenny sells 54 t-shirts and
makes $774. Write and solve a system of equations to find out how many of each she sold.
(let x=the number of long sleeve t-shirts and y=the number of short sleeve t-shirts)

Answers

Answer:

54 short sleeve

7 long sleeve

Step-by-step explanation:

54*12=648

774-648= 126

126/18=7

Find the measure of each missing angle. ​Subject: Geometry
Unit 5: Relationships in Triangles
Homework 1: Triangle Midsegments

Answers

Answer:

Q10

∠1 = ∠5 = 180° - 144° = 36°∠2 = 56°∠3 = 180° - 56° = 124°∠4 = 144° - 56° = 88°∠5 = ∠1 = 36°

Q11

∠1 = 35°∠2 = 180° - 35° = 145°∠3 = 90° - 35° = 55°∠4 = 180° - ∠5 = 180° - ∠3 = 180° - 55° = 125°∠5 = ∠3 = 55°

Measure of angles for figure 1:

∠1=36∠2=56∠3=124∠4=88∠5=36

Measure of angles for figure 2:

∠1=35∠2=145∠3=55∠4=125∠5=55

The angle is formed by two rays at a common point of the two rays.

For given figure 1:

∠1+144=180 (Sum of angles on same side of transversal is 180°)

∠1=180-144

∠1=36

∠5+144=180(Sum of angles on a line is 180°)

∠5=180-144

∠5=36

Similarly, ∠3=180-56

∠3=124

∠4+36+56=180(Sum of all angles of a triangle is 180°)

∠4=180-36-56

∠4=88

∠2+36+88=180

∠2=56

Thus, measure of angles for figure 1 are ∠1=36, ∠2=56, ∠3=124, ∠4=88, ∠5=36.

For given, figure 2:

∠1=35(Alternate angle on same side of transversal are equal)

∠2=180-35

∠5=180-35-90(Sum of all angles of a triangle is 180°)

∠5=55

∠4+55=180(Sum of angles on a line is 180°)

∠4=180-55

∠4=125

Similarly, ∠2=180-35(Sum of angles on a line is 180°)

∠2=145

∠3=180-35-90(Sum of all angles of a triangle is 180°)

∠3=55

Thus, measure of angles for figure 2 are ∠1=35, ∠2=145, ∠3=55, ∠4=125, ∠5=55

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Can someone give me the answer asap

Answers

Answer:

https://brainly.in/...,..,

Answer:

38.4895cm²

Step-by-step explanation:

area of a circle with r=7

3.142×7² = 153.958

153.958/4 = 38.4895

Help me please i font get it

Answers

Answer:

the last one, w-9

Step-by-step explanation:

plug in the given (9) for w and solve

Hope this helps :)

Answer:

Step-by-step explanation:

9-9=0 not 14

so w-9 is not a solution

According to the video, what is a Database Administrator's main goal?
O to design databases to meet the needs of specific organizations
O to make information in database files available to workers
O to supervise workers who use databases
O to create documentation explaining databases​

Answers

Answer:

B

Step-by-step explanation:

I got it right on my assignment.

Answer:

to make information in database files available to workers

Kyle wants to wrap the box in wrapping paper.

A rectangular prism with a length of 18 inches, width of 6 inches, and height of 3 inches.
What is the minimum amount of paper needed to cover the entire box?
180 inches squared
324 inches squared
360 inches squared
648 inches squared

Answers

Answer: 360 in. squared

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

I did it and got it right

What is 2/8 as a decimal and percent

Answers

Answer:

0.25 is a decimal and 25/100 or 25% is the percentage for 2/8.

Step-by-step explanation:

The result is: 0.25 and 25% is 2/8 as a decimal and percent.

Here, we have,

given that,

the fraction is:  2/8

now, we have to write as a decimal and percent.

so, we get,

2/8

[ dividing both numerator and denominator by 2 ]

= 1/4

= 0.25

so, we get, 0.25 is a decimal.

now, we have,

0.25 = 25/100 = 25%

so, we have, 25/100 or 25% is the percentage for 2/8.

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what is the definition of PEMDAS as it applies to 56(56^4)4+6

Answers

Answer:

pemdas

Step-by-step explanation: pemdas means please excuse my dear aunt sally meaning paranthesiss multiplication division addition and subtraction ^^ tell me if you want more definiton

Brainly needs to do something, these kids dating in the comment section of answers is annoying

Answers

Answer:

I know right?

Step-by-step explanation:

Answer:

BRO I KNOW RIGHT? Its so nasty.. and annoying.. and so gross.. u dont know if ur online dating a whole 40 year old man or 50. so gross.

Step-by-step explanation:

Find -1/9(-27) show your work

Answers

Answer:

-1/9(-27)=3

Step-by-step explanation:

that's my answer

Find the value of k please

Answers

You need a graphing calculator or just use an app on your phone (Desmos is a good app to use). I show what to do in the photo below.

If you monthly salary is 5,167 and 28% is withheld for taxes and social security. How much money will be withheld from your check?

Answers

Answer:

jjjjjjj

Step-by-step explanation:

nnnnnnn

caroline can sketch 5 cartoon strips in two hours. How long will it take her to sketch 20 strips

Answers

Answer:

8 hours

Step-by-step explanation:

20÷5 = 4

4×2 = 8

Hope this Helps!

:)

Add the fractions. Reduce the answer to lowest terms.
8\9+1/9

Answers

Answer:

1

Step-by-step explanation:

8 + 1 = 9/9

-      -      

9.      9

Geometry Help!
Please only answer if you know the answer. Look at the image below to answer the question.

Be sure to show all of your work and explain your thinking.

I posted 3 of these, so if you understand it, please go and check them out.

If you do not know the answer use the comment section, don't answer my question with a comment. Thanks, Good Luck!

Answers

Answer:

Step-by-step explanation:

Use the Law of Sines

FE/sin38=18/sin90

FE=18sin38=11.08

DF/sin52=18/sin90

DF=18sin52=14.2

Answer:

FE = 11.08, DF = 14.18

Step-by-step explanation:

Use trigonometric ratios:

sin = opposite / hypotenusecos = adjacent / hypotenuse

Apply to the given triangle

Side FE

FE / DE = sin 38° (or cos 52°, the value is same)FE / 18 = sin 38°FE = 18 sin 38°FE = 11.08

Side DE

DF / DE = sin 52° (or cos 38°, the value is same)DF / 18 = sin 52°DF = 18 sin 52°DF = 14.18

A garden table and a bench cost $618 combined. The garden table costs $82 less than the bench. What is the cost of the bench?

Answers

Answer:

268

Step-by-step explanation:

If a  garden table and a bench cost $618 combined. The garden table costs $82 less than the bench then the cost of the bench is $350.

Let's denote the cost of the bench as "x."

According to the given information, the garden table costs $82 less than the bench, so its cost can be represented as "x - 82."

The total cost of the garden table and bench combined is $618. Therefore, we can set up the following equation:

x + (x - 82) = 618

Simplifying the equation:

2x - 82 = 618

Next, we isolate the term with "x" by adding 82 to both sides of the equation:

2x - 82 + 82 = 618 + 82

2x = 700

Divide both sides by 2:

x=350

Therefore, the cost of the bench is $350.

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Please help I need it

Answers

Pythagorean theorem: A^2 + B^2 = C^2

C is the hypotenuse, the side opposite from the 90 degree angle. So we have C and A.

c^2 - a^2 = b^2

23^2 - 16^2 = b^2

b^2 = 273

b= 16.5

the graph of a system of linear equation is shown below

Answers

Answer:

B

Step-by-step explanation:

A student took a system of equations, multiplied the first equation by 2 and the second equation by 3, then added the results together. Based on this, she concluded that there were no solutions. Which system of equations could she have started with?

1) 2x-4y=6
3x+6y=9

2) 3x+y=12
-3x+6y=6

3) -2x+4y=4
-3x+6y=6

4) 3x+6y=9
-2x-4y=4

Answers

Answer:

system 4.

Step-by-step explanation:

3x+6y=9

multiply by 2

6x+12y=18   ....(1)

-2x+-4y=4

multiply by 3

-6x-12y=12   ...(2)

add (1) and (2)

0+0=30

which is impossible .It has no solutions.

Answer:4) 3x+6y=9-2x-4y=4

Step-by-step explanation:

I got the answer right

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