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
aalyn [17]
3 years ago
8

300 tickets were sold. Adult tickets cost 3.50 and child tickets cost 1.50. The total money made was 810 dollars. How many child

tickets and how many adult tickets were sold?
Mathematics
1 answer:
Sav [38]3 years ago
4 0

Answer:adult =180

Child = 120

Step-by-step explanation:

You might be interested in
A researcher computes the definitional formula for SS, and finds that Σ(x − M) = 44. If this is a sample of 12 scores, then what
olga_2 [115]

Answer:

Option B.

Step-by-step explanation:

Given information:

Σ(x − M) = 44

where, M is mean.

Sample size = 12

The computational formula for sample variance is

s^2=\dfrac{\sum (x-M)^2}{N-1}

where, M is sample mean and N is sample size.

Substitute Σ(x − M) = 44 and N=12 in the above formula.

s^2=\dfrac{44}{12-1}

s^2=\dfrac{44}{11}

s^2=4.0

The sample variance is 4.0.

Therefore, the correct option is B.

5 0
3 years ago
Which statement best describes the value of the expression 42 - (20 +<br> 3)? *
ludmilkaskok [199]

Answer:

The bottom one: The value is the difference of 42 and the sum of 20 and 3.

Step-by-step explanation:

The answer is what you get when you subtract 23 from 42. Using "the difference" means subtraction is involved and you expression is 42 - (minus) (20+3).

5 0
3 years ago
Read 2 more answers
Nancy has a bank account that has a balance of $320 and allows for a maximum of 6 deposits per month. She has decided that each
LenaWriter [7]

Answer: 320,340,360,380,400,420,440

6 0
3 years ago
Help pls im being timed
Nitella [24]

The trigonometric ratios show that the angle FHE is 48.59°.

<h3>RIGHT TRIANGLE</h3>

A triangle is classified as a right triangle when it presents one of your angles equal to 90º.  The greatest side of a right triangle is called hypotenuse. And, the other two sides are called cathetus or legs.

The math tools applied for finding angles or sides in a right triangle are the trigonometric ratios or the Pythagorean Theorem.

The Pythagorean Theorem says: (hypothenuse)^2=(leg_1)^2+(leg_2)^2. And the main trigonometric ratios are:

sin(\alpha) =\frac{opposite \;leg }{hypotenuse} \\ \\ cos(\alpha) =\frac{adjacent\;leg }{hypotenuse} \\ \\ tan(\alpha) =\frac{sin(\alpha )}{cos(\alpha )}= \frac{opposite \;leg }{adjacent\;leg } \\ \\

It is important to remember that the sum of internal angles for any triangle is 180°.

From the question, it is possible to see 2 right triangles (HGF and FHE).

You can find the hypotenuse of the triangle HGF from the  trigonometric ratio: sen Θ

sin45=\frac{opposite\; leg }{hypotenuse} =\frac{\sqrt8}{hypotenuse}\\ \\ \frac{\sqrt{2} }{2} =\frac{\sqrt{8} }{hypotenuse} \\ \\ \sqrt{2}*hypotenuse=2\sqrt{8} \\ \\ hypotenuse=\frac{2\sqrt{8} }{\sqrt{2}} =2\sqrt{4} =2*2=4

The hypotenuse of triangle HGF is one of legs for the triangle FHE. The, you can find the angle FHE from the  trigonometric ratio: tan β. Thus,

sin \beta =\frac{opposite\; leg }{adjacent\; leg} =\frac{3}{4}\\ \\ sin \beta=\frac{3}{4}=0.84806\\ \\ arcsin\beta =48.59^{\circ \:}

Learn more about trigonometric ratios here:

brainly.com/question/11967894

#SPJ1

7 0
2 years ago
Question: 69 = 9r -3<br> r =
In-s [12.5K]

Answer:

8 = r

Step-by-step explanation:

69 = 9r -3

Add 3 to each side

69+3 = 9r -3+3

72 = 9r

Divide each side by 9

72 / 9 = 9r/9

8 = r

4 0
3 years ago
Read 2 more answers
Other questions:
  • Anybody know the answer ?
    14·1 answer
  • What is the value of 3/7 times .1 divided by 5/21
    11·1 answer
  • Can someone please answer. There is one picture. There's a picture. Thank you!
    14·1 answer
  • A spinner has 12 equal sectors for different letters for each sector as shown below hamlet spins The spinner five times and it s
    5·1 answer
  • Write a sine function that has a midline of 2, an amplitude of 4 and a period of 11.
    14·1 answer
  • Which of the following best describes the slope of the line below?
    7·1 answer
  • Line passing through (0, 9) , (8, 7)
    5·1 answer
  • Please help if you want points and happy ramadan if you celebrate it
    13·2 answers
  • 3. You must be no more than 62 inches tall to play on the playground. You are 48 inches tall.
    9·1 answer
  • Find the relationship between zeros and intercepts of the polynomial m2 + 5m + 4.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!