1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
maria [59]
3 years ago
7

A store offers a 15% discount on all items in the storage on a cell All Star employee gets in the aditional 10% employee discoun

t in the equation below C represents the cost of an item for an employee including tax and x represents the original price of the item
C=0.765x+0.06(0.765×)

Chris is an employee at the store. He plans to buy a coat during the sale. The price of the coat before the discount is 100$. How much will Chris pay for the coat during the sale? Remember,do not include the $ symbol.​
Mathematics
1 answer:
pochemuha3 years ago
8 0

Answer:

$81.09

Step-by-step explanation:

C=0.765(100)+0.06<u>(0.765x100)</u>

C=0.765(100)+<u>0.06x76.5</u>

C=<u>0.765(100)</u>+4.59

C=76.5+4.59

C=81.09

You might be interested in
X^2 + Y^2 +ax + 2y + 3 = 0<br><br> What number is this equation the equation of a circle?
Sav [38]

Answer:

Eq: (x+a/2)²+(y+1)²=(a²-8)/4

Center: O(-a/2, -1)

Radius: r=0.5×sqrt(a²-8)

Mandatory: a>2×sqrt(2)

Step-by-step explanation:

The circle with center in O(xo,yo) and radius r has the equation:

(x-xo)²+(y-yo)²=r²

We have:

x²+y²+ax+2y+3=0

But: x²+ax=x²+2(a/2)x+a²/4-a²/4= (x+a/2)²-a²/4

And

y²+2y+3=y²+2y+1+2=(y+1)²+2

Replacing, we get:

(x+a/2)²-a²/4+(y+1)²+2=0

(x+a/2)²+(y+1)²=a²/4-2=(a²-8)/4

By visual inspection we note that:

- center of circle: O(-a/2, -1)

- radius: r=sqrt((a²-8)/4)=0.5×sqrt(a²-8). This means a²>8 or a>2×sqrt(2)

6 0
3 years ago
Giving brainliest! Please show the working out
tiny-mole [99]

Answer:

see explanation

Step-by-step explanation:

(a)

OC = OB ( both radii of the circle )

Thus Δ BOC is isosceles with congruent base angles.

∠ BOC = ∠ BCO = 50°

(b)

∠ ACB = 90° ( angle in a semicircle ), then

∠ ACO = 90° - 50° = 40°

OA = OC ( both radii of the circle )

Thus Δ ACO is isosceles with congruent base angles.

∠ BAC = ∠ ACO = 40°

7 0
3 years ago
1) Complete the following items dealing with sets.
Ivanshal [37]
From the set {21, 37, 45}, use substitution to determine which value of x makes the inequality true.x - 8 > 29 
45 
none of these 
37 
21From the set {21, 37, 45}, use substitution to determine which value of x makes the inequality true.x - 8 > 29 
45 
none of these 
37 
21
3 0
3 years ago
Pleeeeese help me as fast as you can!!!
Aleonysh [2.5K]

Answer:

A. y=3x-10

C. y+6=3(x-15)

Step-by-step explanation:

Given:

The given line is 6x+18y=5

Express this in slope-intercept form y=mx+b, where m is the slope and b is the y-intercept.

6x+18y=5\\18y=-6x+5\\y=-\frac{6}{18}x+\frac{5}{18}\\y=-\frac{1}{3}x+\frac{5}{18}

Therefore, the slope of the line is m=-\frac{1}{3}.

Now, for perpendicular lines, the product of their slopes is equal to -1.

Let us find the slopes of each lines.

Option A:

y=3x-10

On comparing with the slope-intercept form, we get slope as  m_{A}=3.

Now, m\times m_{A}=-\frac{1}{3}\times 3=-1. So, option A is perpendicular to the given line.

Option B:

For lines of the form x=a, where, a is a constant, the slope is undefined. So, option B is incorrect.

Option C:

On comparing with the slope-point form, we get slope as  m_{C}=3.

Now, m\times m_{C}=-\frac{1}{3}\times 3=-1. So, option C is perpendicular to the given line.

Option D:

3x+9y=8\\9y=-3x+8\\y=-\frac{3}{9}x+\frac{8}{9}\\y=-\frac{1}{3}x+\frac{8}{9}

On comparing with the slope-intercept form, we get slope as  m_{D}=-\frac{1}{3}.

Now, m\times m_{D}=-\frac{1}{3}\times -\frac{1}{3}=\frac{1}{9}. So, option D is not perpendicular to the given line.

8 0
3 years ago
Can someone help me with this question?
soldier1979 [14.2K]

Answer:

C. Graph Y

Step-by-step explanation:

I graphed the equation below and found that it was the same as graph Y.

If this answer is correct, please make me Brainliest!

4 0
3 years ago
Other questions:
  • The slope of the line passing through the points (-2, 6) and (4, 6) is
    10·1 answer
  • Choose the correct simplification of the expression (−2x + 8y)(9x − 3y).
    12·2 answers
  • Factor 4x^2-49y^2 Please help me get the answer
    5·1 answer
  • Collin is substituting t = 2 and t = 6 to determine if the two expressions are equivalent.
    9·2 answers
  • To get ready for the big community bake sale a baker is baking cookies.For his first batch he makes 48 cookies second 78 cookies
    15·1 answer
  • What is an example of dealer incentives ?
    14·1 answer
  • HELPPP please thank you so much
    14·1 answer
  • Opposite in meaning
    10·1 answer
  • A caterer charger $120 to carter a party for 15 people and $200 for 25 people
    6·1 answer
  • In an aquarium 2/5 of the fish or surgeonfish. Of these, 3/4 are yellow tangs. what fraction of all fish in the aquarium or yell
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!