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
Serga [27]
3 years ago
15

a science museum offers tours for school groups with 20 or more students. the tour costs $100 plus $3.50 for every student in ex

cess of 20 students. a school group pays $345 for the tour. part A: write an equation that can be used to determine the number of students,n, who went in the tour. explain how toy determined your answer
Mathematics
2 answers:
Svetllana [295]3 years ago
7 0

Answer:

Equation : 100 + (n - 20) × 3.5 = 345

90 students went for tour.

Step-by-step explanation:

Since, the cost of first 20 students is fix and it is $100

and, each student after these 20 students has to pay $3.50, also tour cost is $345.

Let the number of total student went for tour be "n".

Hence, we get equation,

100 + (n - 20) × 3.5 = 345

⇒  (n - 20) × 3.5 = 345 - 100

⇒  (n - 20) × 3.5 = 245

⇒  (n - 20) = 245 ÷ 3.5

⇒  (n - 20) = 70

⇒ n = 90 students

ohaa [14]3 years ago
5 0
The total paid was $345.  Twenty students cost $100.00.  $345-4100=$245
245/3.50=70 additional students.  70+20=90 students went on the tour
You might be interested in
Please help!!! ill mark brainliest
Vesnalui [34]

3x - 1 = 3x + 1  

subtract 3x from both sides to get (-1 = 1).  This is a false statement so it is: CONTRADICTION

************************************************

4x - 11 = 7

add 11 to both sides and then divide both sides by 4 to get (x = \frac{18}{4} = \frac{9}{2}).  This statement is true only when x = \frac{9}{2} so it is: CONDITIONAL

*************************************************

2 - 8x = 2 - 8x

add 8x to both sides to get (2 = 2).  This is a true statement so it is: IDENTITY

*************************************************

x + 1 = -x + 4

add x to both sides, subtract 1 from both sides, and divide both sides by 2 to get  (x = \frac{3}{2} ). This statement is true only when x = \frac{3}{2} so it is: CONDITIONAL

Answer: B, A, C, A

6 0
3 years ago
.............................................................................................
Lady_Fox [76]

Answer:.............................................................................................

Step-by-step explanation:

.............................................................................................

5 0
3 years ago
Please explain how they plugged the removable discontinuity in this question.
kondor19780726 [428]

In the limit

\displaystyle \lim_{x\to c} f(x)

we're interested in the value that f(x) converges to as x gets closer to c. So in fact x\neq c.

In the given example, f(x) is factorized to reveal a common factor of x-1 in the numerator and denominator. We have x\neq1 if x\to1, so x-1\neq0 so we can simplify

\dfrac{x-1}{x-1} = 1

and *remove* the discontinuity.

Then

\displaystyle \lim_{x\to1} \frac{2(x-1)}{(x+1)(x-1)} = \lim_{x\to1} \frac2{x+1} = \frac2{1+1} = 1

8 0
1 year ago
Also this stuff too I need it before my teach put grades in
andrew11 [14]

Answer:

1. Distance is 5 units 2. Distance is 14 units 3. B. (2, -5), 10. (4, 14) 11. (6, 12) 14. x = 12 16. x = 55

Step-by-step explanation:

6 0
3 years ago
A passenger train left Chicago and traveled toward Elkhart at an average speed of 29 mph. A freight train left 2.4 hours later a
ElenaW [278]
29*2.4-36.5= 33.1 hrs before the freight train cought up.
5 0
3 years ago
Other questions:
  • Find m2ABC.<br>(2x)=(5x+5)<br><br>OPTIONS<br><br>25<br>60<br>50<br>130<br>​
    10·1 answer
  • A craft store retailer uses a markup rate of 65%. A scrapbook kit costs the retailer $20.
    13·2 answers
  • Anyone know the answer to question b
    11·1 answer
  • Which unit rate corresponds to the proportional relationship shown in the graph? Drag and drop the answer into the box to match
    6·2 answers
  • What is the measure of angle A to the nearest degree?
    11·1 answer
  • Which list of decimal numbers is in ascending order?
    10·2 answers
  • A music company sells CDs for a particular artist. The company has advertising cost of $4,000 and recoding costs of $10,000; The
    13·1 answer
  • Solve log x = 2. Please explain how to do this as well. Thank you! This is for algebra 2.
    13·1 answer
  • Please Help!!!!! I need the answer for my quiz!!!!
    13·2 answers
  • In factored form please help
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!