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
iris [78.8K]
3 years ago
14

The Jurassic Zoo charges $13 for each adult admission and $4 for each child . The total bill for the 238 people from a school tr

ip was $1330. How many adults and how many children went to the zoo ?

Mathematics
1 answer:
slava [35]3 years ago
6 0

Answer:

42 adults and 196 children went to the zoo

Step-by-step explanation:

Let

x ----> the number of adults

y ----> the number of children

we know that

The total bill for the 238 people from a school trip was $1330

so

x+y=238 ----> equation A

13x+4y=1,330 ----> equation B

Solve the system of equations by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

the solution is the point (42,196)

see the attached figure

therefore

42 adults and 196 children went to the zoo

You might be interested in
Please answer this ??
Vadim26 [7]
The answer is 24.5. Just plug the numbers in
7 0
3 years ago
Mrs. Smith's class is working on a variety of science experiments. Each
SVETLANKA909090 [29]

Answer:

66

Step-by-step explanation:

If there are  <em>n</em>  students, then the number of pairs is \frac{n(n-1)}{2}.

With 12 students, \frac{12(12-1)}{2} = \frac{132}{2}=66 pairs can be formed.

The reason the formula works is this:  Each of the 12 students can be paired with 11 other students (no student is paired with him/her self).  But counting 12 x 11 = 132  counts each pair <u>twice</u>.  Example: student A can be paired with student B,..., student B can be paired with student A.  The pair was counted two times.

See the attached image that shows pairings of 5 students.  There are

5(5 - 1)/2 = 5(4)/2 = 10 pairs.

8 0
3 years ago
Amy is helping plan her school's new basketball court. The west edge of the basketball court is located on the line y = 2x + 5.
ipn [44]

Answer:

Line of east wedge is: 2x - y = 96

So, Option 1 is correct.

Step-by-step explanation:

The east edge cannot intersect with the west edge means that two lines are parallel.

If the two lines are parallel then they have same slope. We need to find the slopes of given lines and check which line has slope same as slope of west edge.

Slope of west edge.

y = 2x + 5

The standard equation for slope intercept form is:

y = mx+b

where m is the slope. So, m= 2

Now finding line for east edge.

Option 1.

Convert each given equation to standard slope intercept form and find the slope.

2x -y =96

-y = -2x +96

Multiply with -1

y = 2x -96

m = 2

Option 2.

-2x -y = 96

-y = 2x +96

y = -2x-96

m = -2

Option 3

-y-2x =48

-y = 2x +48

y = -2x -48

m = -2

Option 4.

y+2x = 48

y = -2x+48

m = -2

So, only line of Option 1 has slope = 2 which is equal to the slope of west edge.

Line of east wedge is: 2x - y = 96

So, Option 1 is correct.

7 0
3 years ago
What positive value of x make the following eqaution true:x3=64? Explain
spin [16.1K]

Answer:

if the 3 is an exponent, then it is 4 bc 4 to the power of 3 is 64

Step-by-step explanation:

x3=64

Step 1: Take cube root.

x=(64)(13)

x=4

Answer:

x=4

3 0
3 years ago
Evaluate 20/6 - 2/3. 2 1/6, 2 2/3, 3 1/3, 3 2/3
N76 [4]

Answer:

Step-by-step explanation:

20/6 - 4/6= 16/6= 2 4/6= 2 2/3

7 0
3 years ago
Other questions:
  • Is my answer for this question right?
    6·1 answer
  • What's 37 plus 3 tnnbhdbbhsjffbdhdh
    7·2 answers
  • If you rent 5 dvds for 5 nights for $5, at this rate how much do you expect to pay for 1 dvd for 1 night?
    7·2 answers
  • Ella left the city at 11:13am and got to Tema at 3:08pm. how long did the journey take. ​
    9·1 answer
  • Can you explain the steps PLEASE
    13·1 answer
  • Write an equation of the line in slope-intercept form that passes through (-5, 2), and is perpendicular to y+3=2x
    13·1 answer
  • The table shows data from Vicente's Form 1040. Gross income $75,000 Standard deduction $12,000 Taxable income $63,000 Total inco
    15·1 answer
  • Prove the following theorem indirectly. We will give you a start.
    10·1 answer
  • The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of
    6·1 answer
  • On a certain function machine, an input of 3 has an output of -6. An input of -2 has an output of 4. An input of 0 has an output
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!