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
aev [14]
3 years ago
12

A store marked up the cost of a $40 pair of

Mathematics
1 answer:
choli [55]3 years ago
7 0

Answer:

$39.10

Step-by-step explanation:

$40 * 1.15 = $46

$46 * 0.85 = $39.10

You might be interested in
A hawk soars at an altitude of 1,800ft. If the hawk descends to the ground in 45 min, what is the vertical speed?
melomori [17]
1800ft/45mins. I'm not sure.
6 0
3 years ago
Read 2 more answers
Find the quadratic function y=a(x-h)^2 whose graph passes through the given points. (12,-7) and (9,0)
ryzh [129]

Answer:

y = (-7/3)(x - 9)

Step-by-step explanation:

<em><u>(12, - 7)</u></em>

y = a(x - h)^2

-7 = a(12 - h)^2

- 7 = a(144 - 24x + h^2)

<em><u>(9,0)</u></em>

0 = a(x - h)^2

0 = a(9 - h)^2

0 = a(81 - 18h + h^2)

From (9,0) we can conclude that

a = 0

or

(9 - h)^2 = 0

Let's try the second possibility.

Take the square root of both sides.

9 - h = sqrt(0)

Add h to both sides

9 - h = 0  

h = 9

So now what we have is

y = a(x - 9)

Use the first equation to get a

-7 = a(12 - 9)

-7 = a(3)

-7/3 = a

Answer

y = (-7/3)(x - 9)

6 0
3 years ago
Solve the equation. |x + 5| = 9 {–4, 14} {–14, 4} {4, 14} {–14, –4}
inna [77]

Answer:

{-14, 4}

Step-by-step explanation:

the absolute value function only makes sure that the result always has a positive sign.

so, (x + 5) must be either +9 or -9 to make the original equation true. the absolute value would turn both into +9.

so,

x + 5 = 9

x = 4

and

x + 5 = -9

x = -14

that gives us the correct set of solutions as indicated above.

6 0
2 years ago
14. One quart is equivalent to 0.95 liter.
kolezko [41]
Just answering for a task
6 0
3 years ago
Katie,Elizabeth,and Siobhan volunteer at the hospital. In a week,Katie volunteers 3 hours more than Elizabeth does and Siobhan v
Tema [17]
Let's say that x represents hours that Elizabeth volunteers over 1 week. Katie volunteers x+3 and Siobhan x-1 hours per week. The equation that arises from condition in text is:
3*(x+3) = 3*(x + x-1)
x+3 = 2*x - 1
2*x - x= 3+1
x=4.

Elizabeth volunteers    7 hours
Katie volunteers          4 hours
Siobhan volunteers     3 hours 
7 0
3 years ago
Read 2 more answers
Other questions:
  • Help me for 5 and 6???????
    11·2 answers
  • There are currently 20 members in the school's Ski Club and the dues are $10 per member. To encourage the recruiting of new memb
    11·1 answer
  • Mitchell has a small bag with 12 m&amp;ms in it.5 of the m&amp;ms are yellow. 2are green. 1is orange 4 are brown. What fraction
    5·1 answer
  • How many ounces of trail mix are in a bag that weighs 0.5675
    5·1 answer
  • I need to know whether the relation is a function.
    12·1 answer
  • Work out the area of a rectangle with base, b = 20mm and perimeter, P = 42mm.
    15·2 answers
  • 7. A rectangular kitchen is 20 feet long and 10 feet wide. Joey is putting in new flooring to
    13·1 answer
  • 2x - 3y = 12<br><br> 4x + 3y = 24<br><br> x = y =
    5·2 answers
  • Hi can someone help me pls
    6·2 answers
  • H + 7 &lt; 5 "or" -9h &lt; -45
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!