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
egoroff_w [7]
2 years ago
8

Please help ASAP!!!!! I'll give brainliest if the answer is correct!!

Mathematics
1 answer:
PtichkaEL [24]2 years ago
4 0

Answer:

Step-by-step explanation:

55% = 0.55

30 dollars is the normal price so ,  

30*0.55=16.5  is the amount marked off

30-16.5=14.50  is the price of the shirts

12.00 was the cost of the shirts

14.5-12=2.50  profit per shirt

You might be interested in
I need help with #6 please.
Juliette [100K]

9514 1404 393

Answer:

  6. (A, B, C) ≈ (112.4°, 29.5°, 38.0°)

  7. (a, b, C) ≈ (180.5, 238.5, 145°)

Step-by-step explanation:

My "work" is to make use of a triangle solver calculator. The results are attached. Triangle solvers are available for phone or tablet and on web sites. Many graphing calculators have triangle solvers built in.

__

We suppose you're to make use of the Law of Sines and the Law of Cosines, as applicable.

6. When 3 sides are given, the Law of Cosines can be used to find the angles. For example, angle A can be found from ...

  A = arccos((b² +c² -a²)/(2bc))

  A = arccos((8² +10² -15²)/(2·8·10)) = arccos(-61/160) = 112.4°

The other angles can be found by permuting the variables appropriately.

  B = arccos((225 +100 -64)/(2·15·10) = arccos(261/300) ≈ 29.5°

The third angle can be found as the supplement to the other two.

  C = 180° -112.411° -29.541° = 38.048° ≈ 38.0°

The angles (A, B, C) are about (112.4°, 29.5°, 38.0°).

__

7. When insufficient information is given for the Law of Cosines, the Law of Sines can be useful. It tells us side lengths are proportional to the sine of the opposite angle. With two angles, we can find the third, and with any side length, we can then find the other side lengths.

  C = 180° -A -B = 145°

  a = c(sin(A)/sin(C)) = 400·sin(15°)/sin(145°) ≈ 180.49

  b = c(sin(B)/sin(C)) = 400·sin(20°)/sin(145°) ≈ 238.52

The measures (a, b, C) are about (180.5, 238.5, 145°).

7 0
2 years ago
Candy is on sell for $0.75 each. You have a coupon for $.25 off your total purchase. Write a function rule for the cost of n pie
enyata [817]

t(n)=.75n-.25

Term number x .75 subtract .25



6 0
2 years ago
Read 2 more answers
87 less than the quotient of an unknown number and 43 is -75
choli [55]
The statement is expressed algebraically as
(x/43) - 87 = -75
8 0
3 years ago
Please give answers due at 8:00 pst
Ivahew [28]

Answer:

1.70

5.35

2.135

6..56

3.150

7.36

4.41

8.134

pls mark me as brainliest.i would really appreciate that.Tq

3 0
3 years ago
Read 2 more answers
What is a supplementary angle??
Olin [163]
A single angle is generally not considered to be supplementary. Supplementary angles are angles that equal 180° when they are added together. For example, 70° and 110° are supplementary because they equal 180°.

However, I guess the supplementary angle can be the angle that must be added to another to total 180°. For example, 80° is the supplementary angle of 100°.
3 0
3 years ago
Read 2 more answers
Other questions:
  • one day, gale and hector each recorded temperatures outside their homes. function g shows tempatures, in F, gale recorded c hour
    7·2 answers
  • How much is 6x7 7+6 please i need help
    5·1 answer
  • The hypotenuse of a right triangle is 7 inches, and one of the legs is inches. Find the length of the other leg. .
    13·1 answer
  • At an ice cream store, a family ordered 1 banana split and 2 hot fudge sundaes, paying a total of $11 for their order. The next
    13·1 answer
  • What is one unit the definition
    9·1 answer
  • Whats 222+444 0____0
    15·2 answers
  • If the equation 5(3x + 7) – 1 = 3(52 + k) + 4 has infinitely many solutions, what is the value of k?
    15·1 answer
  • Which of the following terms best describes the graph of the exponential
    15·1 answer
  • Find the variance of the given sample 18, 18, 18, 9, 15, 5, 10, 5, 15
    14·1 answer
  • Evaluate f(x) = -x power of 2 -4 for x=-3
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!