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
Mazyrski [523]
2 years ago
7

At the school Halloween dance. 85% of the students were present. If there are 765 students at the dance then how many total stud

ents are enrolled at school?​
Mathematics
1 answer:
marishachu [46]2 years ago
3 0

Answer:

900 students

Step-by-step explanation:

We have, 85% × x = 765 or, 85/100 × x = 765. Multiplying both sides by 100 and dividing both sides by 85, we have x = 765 × 100/85. So x = 900. If you are using a calculator, simply enter 765×100÷85, which will give you the answer.

You might be interested in
Two airplanes leave an airport at the same time, the first headed due north and the second at a bearing of N42^ E . At 2:00PM, t
Leno4ka [110]

Answer:

The two airplanes are about 330miles apart.

Step-by-step explanation:

The diagram interpreting the question has been attached to this response.

As shown in the diagram,

i. the airplanes leave at point C.

ii. at 2.00pm the first and second airplanes are at points A and B respectively, where they are 312miles and 487miles away from the starting point C in directions due north and N42E from the point C.

iii. the points A, B and C form a triangle with sides a, b and c.

To solve for the value of c which is the distance between the two planes at 2.00pm, the cosine rule is used.

c² = a² + b² - 2abcosC            --------------(i)

where;

b  = 312miles

a = 487miles

C = 42°

Substitute these values into equation (i) and solve as follows;

c² = (487)² + (312)² - 2(312)(487)cos(42)

c² = (237169) + (97344) - 303888cos(42)

c² = (237169) + (97344) - 303888(0.7431)

c² = 334513 - 225819.1728

c² = 108693.8272

<em>Take the square root of both sides</em>

√c² = √108693.8272

c = 329.69

c ≅ 330miles

Therefore, the two airplanes are far apart by 330miles

3 0
3 years ago
can some one also please help my one that i should do after i finds the area of the square aka how to find the area of the trian
Andre45 [30]

Answer:

6 square units

Step-by-step explanation:

Given shape is of a trapezoid:

area \: of \: trapezoid  \\ =  \frac{1}{2}  \times (4 + 2) \times 2 \\  \\  = 6 \:  {units}^{2}

Area of shape = area of square + area of triangle

= 2^2 + \frac{1}{2} \times 2\times 2\\= 4 + 2\\= 6\: units^2 \\

4 0
3 years ago
What is the slope for this??
aleksandr82 [10.1K]

Answer:

slope: \frac{13}{4}

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Question in the picture!
Aleonysh [2.5K]

Answer:

B

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If you flip three fair coins, what is the probability that you’ll get heads on the first two flips and tails on the last flip
Len [333]

Answer:

1/8

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • A rectangle prism is11 3/5 meters long, 9 meters wide, and 121/2 meters high. What is the volume , in cubic meters, of the prism
    10·1 answer
  • Which is a true statement?
    11·1 answer
  • What was the purpose of the Pendleton Act?
    12·1 answer
  • Jonathan bought a car for $10,500. The car depreciates in value by 16% each year. How much is the
    10·2 answers
  • What is P(A and B)?
    5·2 answers
  • What percent is 7.2 of 19.5
    15·2 answers
  • You buy tomato sauce for $0.37 per ounce. One portion of potato gnocchi requires 3.5 ounces of tomato sauce. How much does the s
    5·2 answers
  • What is the correct reason for statement 1
    10·1 answer
  • Use the distributive property to write an equivalent expression.
    5·2 answers
  • Find the equation of the linear function represented by the table below in slope-intercept form.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!