Mathematics High School

An eye doctor charges an exam fee, plus a charge for the number of boxes of contact lenses purchased.
Lindsey had an exam and ordered 2 boxes of contact lenses for $112.97
Josh had an exam and ordered 6 boxes of contact lenses for $272.93
How much is the exam fee?

A$32.99
B$39.99
C$45.49
D$56.49

Answers

Answer 1

Answer:

to get the exam fee

$112•97 ÷ 2

45•49

$272•93 ÷ 3

56•49

Related Questions

Jared measured a house and its lot and made a scale drawing. The scale of the drawing was 5 millimeters : 3 meters. The actual length of the front lawn is 69 meters. How long is the lawn in the drawing?

Answers

Answer:

115mm

Step-by-step explanation:

5/x = 3/69

5/x = 1/23

5*23 = x

115 = x

Find the solution of the system of equations -7x-3y=-20 3x+6y=-15

Answers

9514 1404 393

Answer:

  (5, -5)

Step-by-step explanation:

I like a graphing calculator for quickly finding a solution to a system of equations. It shows the solution to be (5, -5).

__

We can add the second equation to 2 times the first to eliminate the y-variable.

  2(-7x -3y) +(3x +6y) = 2(-20) +(-15)

  -11x = -55 . . . . . collect terms

  x = 5 . . . . . . . . . divide by -11

Substituting this value into the second equation, we have ...

  3(5) +6y = -15

  6y = -30 . . . . . . . . subtract 15

  y = -5 . . . . . . . . . . divide by 6

The solution is (x, y) = (5, -5).

i need help. can anybody help me​

Answers

Answer:

positive 1/2

Step-by-step explanation:

Answer:

0.5

Step-by-step explanation:

3-2/0-2= 0.5

16
27
Find the exact value of z.

Answers

Answer:

Step-by-step explanation:

There is no question.

f(x) = -x² + x + 14
Find f (2)

Answers

Answer:

Step-by-step explanation:

f(2) = -2^2 + 2 + 14 = -4 + 2 + 14 = 12

Answer:

f(2) = 20

Step-by-step explanation:

f(x) = -x^2 + x + 14

f(2) = (2)^2 + (2) + 14

f(2) = 4 + 2 + 14

f(2) = 20

Determine whether ABCD is a parallelogram if AB = 6, BC = 12, CD = 6, and DA = 12. Justify your answer
A/ Yes; Opposite sides are congruent to each other.
B/ Yes; Opposite sides are parallel to each other.
C/ Yes; Opposite angles are congruent to each other.
D/ No

Answers

A/ yes; opposite sides are congruent to each other.

3x^2+8x-6=0 solve with quadratic formula

Answers

Answer:

The answer is x = -4 ± √34 /3

Step-by-step explanation:

Solve the equation for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

Hoped this helped!

In which diagram do <1 and <2 appear to be vertical angles?

Answers

In the second diagram!!

HELP THIS IS DUE VERY SOONN

Answers

Answer:

A: 7

B: 84,035

Step-by-step explanation:

The population increases by 7 each time, so 12,005x7=84035.

(Side note: I'm not completely sure what the "exponential function" is but I think the answer is correct. Check over it yourself to be sure :)

Answer:

a.  x plus 5 times 7

b. 84035

Step-by-step explanation:

Help me for 25 points !!!! And brainlist!!!!

(Don’t answer if u don’t know cause then i will report you)

Answers

Answer:

its 37° because both the triangle are congruent to each other.

Step-by-step explanation:

i answer ur ans how much i know but please don't report me okay

i think it’s 37

EXPLANATION:

it literally means "harmonious sounding together".
a. sonare
b. sonaire
c. sinfonia
d. sinfona​

Answers

Answer:

b sonaire

Step-by-step explanation:

Hope that helps

3x+2.2is equal to x=1.7

Answers

Answer:

7.3 answer

Step-by-step explanation:

x=1.7

now

3x+2.2

3×1.7+2.2

7.3

The scale factor from drawing 1 to drawing 2 is ___ %

Please help! Fill in the blank

I will give brainliest

Answers

Answer:

ghggyffxvbvucfyiyiyxozhlhzguvufcbi8

PLEASE PLEASE PLEASE PLEASE HELP 3: I WILL TRY TO GIVE BRAIN LIEST IF IT ALLOWS ME

Answers

Answer:

Step-by-step explanation:

by the looks of it its saying what the difference was each time

Helpppp.....................................................

Answers

Answer:

6 and 8 are yes

Step-by-step explanation:

-4 and -6 are no

Answer:

sorry for this answer

Step-by-step explanation:

Do you have PC ?

hi what is 24/30 simplified to
​

Answers

Answer:

12/15 or .8

Step-by-step explanation:

So first you divide both the numerator and denominator by 2 because it’s the biggest number that goes into both 24 and 30

24 and 30 simplified by 2 gives us 12 and 15

you can’t simplify any further so your answer is 12/15

If you want a decimal, then you divide 24 by 30 and your answer is .8

PLEASE HELP!!!!
Find the length of the missing side. The triangle is not drawn to scale.
100
10
48

Answers

Answer:

10

Step-by-step explanation:

pythagorean theorem

take the sum of the square of each leg and set it equal to the square of the hypotenuse

8² + 6² = x²

64 + 36 = x²

x² = 100

x = [tex]\sqrt{100}[/tex] or 10

Answer:

B.10 units

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem which states that a^2+b^2=c^2

Plug in what we know....

8^2+6^2=c^2

64+36=c^2

c=sqrt(100)

c=10 units or B


help me please it’s due today

Answers

Answer: -1/2

Step-by-step explanation:

The triangle represents a scale drawing that was created by using a factor of One-half.

A triangle with sides lengths of 5 inches.

Which is true of the measures of the sides of the original triangle?
Each side of the original triangle is One-half the length of each side of the scale drawing.
Each side of the original triangle is 2 times the length of each side of the scale drawing.
Each side of the original triangle is the same length as each side of the scale drawing.
Each side of the original triangle is 2 inches shorter than the scale drawing.

Answers

9514 1404 393

Answer:

  (b)  Each side of the original triangle is 2 times the length of each side of the scale drawing.

Step-by-step explanation:

If the smaller is 1/2 the larger, then the larger is 2 times the smaller. The original triangle's sides are 2 times those of the scale drawing.

Three times the sum of a number and nine is 12. Find the number.

Answers

Answer:

7

Step-by-step explanation:

3x+9=12

3x=21

x=7

Answer:

[tex] - 5[/tex]

Step-by-step explanation:

[tex]3(x + 9) = 12[/tex]

What is the solution to the equation: 37x=9x+4

Answers

Answer: X = 1/7

Step-by-step explanation:

37x = 9x + 4

subtract 9x to both sides

28x = 4

now divide by 28

x = 4/28

simplified its

x = 1/7

Answer:

28x=4

x=1/7

Step-by-step explanation:

First you would make simplyfiy the expression so that you would have x on one  side, when you do that you will get 28x=4. When simplyfied you will get 1/7.

Hola me podrían ayudar por favor Convertir las fracciones a números decimales y colocar los decimales en la recta numérica: a. 2/3 b. 8/5 c. -5/2 d. 7/4 e. 9/2 f. -11/3 g. 13/5 h. -7/4

Answers

Answer:

a. 2/3 = 0.67

b. 8/5 = 1.6

c. -5/2 = -2.5

d. 7/4 = 1.75

e. 9/2 = 4.5

f. -11/3 = -3.67

g. 13/5 = 2.6

h. -7/4 = -1.75

Step-by-step explanation:

Convirtiendo las fracciones dadas a decimales, tenemos:

a. 2/3 = 0.67

b. 8/5 = 1.6

c. -5/2 = -2.5

d. 7/4 = 1.75

e. 9/2 = 4.5

f. -11/3 = -3.67

g. 13/5 = 2.6

h. -7/4 = -1.75

Callie has a new kitten. The kitten weighs 3 pounds less than half the weight of Callie’s cat. Together, the cat and the kitten weigh 18 pounds. Which system of equations could be used to find the weight of each animal?

Let K = Kitten and C = Callie the Cat

A) K= 1/2C-3
K+C=18

B) K= 1/2C+3
K-C=18

C) K= 1/2C+3
K= -C+18

D) K= 1/2C-3
C - K=18

Answers

A) K=1/2C-3
K+C=18

Hope this helps! Have a great day :)

Answer:

A) K=1/2C-3

K+C=18

Step-by-step explanation:

Jim drank 2 4/5 cups of orange juice and Jack drank 1 1/10 cups less than Jim. How much juice did jack drink? Explain your answer.

Answers

Answer:

Step-by-step explanation:

2 4/5 - 1 1/10

2 8/10  -  1  1/10

1 7/10 is how much juice Jack drank

Answer:

1 7/10

Step-by-step explanation:

First you should change 4/5 to 8/10 to have a common denominator. Then you just subtract and to get the answer.

Given the equation of all points equidistant from a center, what is the center point?
x2 + (y + 4)= 16

Answers

Answer:0,-4

Step-by-step explanation:

Please do number 13 for me

Answers

57 snanwnnwnnwwnnwnwnwnnwwnnw

Write an equation for the green line, line g.

Answers

Answer:

x=-3

Step-by-step explanation:

Because its straight, on the x-axis, and on -3.

Answer:   x = -3

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

Explanation:

This green line goes through -3 on the x axis. Every point on this line has the same x coordinate and that x coordinate is x = -3. For instance, the two points (-3,5) and (-3,2) are on this green line. The equation of this line is x = -3 to indicate that x must be -3, but y can be anything you want. So that's why the y term doesn't even show up here. We cannot write the equation into slope intercept form. The slope of any vertical line is undefined.

The width of a rectangle is 3x − 7. The length of the rectangle is 4x + 5. Find the area of the rectangle. Justify your result

Answers

Answer:the answer is d. 14x-4

Step-by-step explanation:

i need help please asap

Answers

Answer:

1

Step-by-step explanation:

If this answer helped you then please mark it as brainliest so I can get to the next rank

1
It is 1
Ok thank you

An iPhone marked for 268$ was sold for $334 due to its great popularity to customers by what percent did the price go up ( round to the nearest tenth)

Answers

Answer:

27%

Step-by-step explanation:

Other Questions
if this is correct I will give banelest In The Mystery of the Disappearing Thief, the third-person point of view shows that Sherlock Holmes listened to Mrs. Blakely's tale of the robbery. In The Mystery of the Lost Gem, the first person point of view shows that Sherlock Holmes was frustrated with Mrs. Blakely's conclusion that he could not solve the mystery.How do the points of view reveal differences in the description of Sherlock Holmes? ) aFirst person point of view explains the feelings, thoughts, and actions of the characters by a narrator outside the story, while third person point of view explains the feelings, thoughts, and actions of the narrator. bFirst person point of view explains the feelings, thoughts, and actions of the characters by a narrator outside the story, while third person point of view talks directly to the reader. cFirst person point of view shows the feelings, thoughts, and actions of the narrator, while third person point of view explains the feelings, thoughts, and actions of the characters by a narrator outside the story. dFirst person point of view talks directly to the reader, while third person shows the feelings, thoughts, and actions of the character. SMARTIES HELP ME PLEASE!!!!!!!!!!!!!! What Enlightenment idea was so important that Locke, Voltaire, Rousseau, and other philosophes wrote about? Just do part B U dont needa do part A thx What happened to Rosa Parks on the bus that day an example of ''real hatred and prejudice''? the point u(3 , -4) is reflected over the x -axis what are the coordinates of the resulting point , u'? name major component of the system unit The cross country team practices by jogging onthe towns streets. The average jogging rateis 6 miles per hour. One member jogged for3.5 hours one weekend. How many miles didthe team member jog? Which of the following is NOT a method that has been used to predict earthquakes? Use the distributive property to write (1)( + 3) as an equivalent expression. 6 = 48p=I need help please 4 + 1/5r = -1r = ? You are building a door frame. The two sides are parallel and the top and bottom are also parallel. Which additional statement(s) give enough information to conclude that the door frame forms a rectangle? Ethan decided to give 10% of his monthly income to charity. This month, he wrote the calculation at right. Explain why this calculation is appropriate and finish it for him. How much money should he give this month? Why are nonnative species a threat to biodiversity?They often use up resources that other organisms need.They are not able to successfully breed in the wild.They release pollution into many environments.They easily contract and spread diseases to other organisms. Why was Cherry mad at Bob after the movie?He arrived late to the movie.He broke up with her.He drank frequently.He lost his job. 1) Write an essay on one unintended consequence of the Columbian Exchange. To begin, read the examples of actions and consequences below, and note how each consequence was intended or unintended. Write an essay that supports your thesis statement. Include details such as locations or countries, key people, populations involved, and ways in which the unintended consequence can be seen many years or even centuries later. [ Examples] 1) Action: Europeans take potatoes from tbe New World back to Europe). Consequence) Potatoes become an important crop, so much so that some European countries begin to depend on them as their main food source. ( Intended: Europeans Intended to grow potatoes in Europe to supplement the native crops). ( Unintended: Some European countries became overly dependent on the potato as a food source. [ Please don't repost someone else answer just to post on my question just to get points]. Will Mark Brainliest and give 5 . If you can't help please don't answer. Thank you and have a great day. Why are tenths, fifths, fourths, and halves easyto express as percent? You invested 19,000 in two accounts paying 6% and 8% annual interest, respectively. If the total interest earned for the year was $1220, how much was invested at each rate? Yolanda bought 4 pounds of potatoes how many ounces of potatoes did yolanda buy?