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
aleksandr82 [10.1K]
3 years ago
13

214 people used a public swimming pool. $1.50 for kids and $2.25 for adults. The receipt totaled to $390 How many children and h

ow many adults went the the public pool that day?
Mathematics
1 answer:
zysi [14]3 years ago
5 0

Answer:the number of kids that used the public pool that day is 122

the number of adults that used the public pool that day is 92

Step-by-step explanation:

Let x represent the number of kids that used the public pool that day.

Let y represent the number of adults that used the public pool that day.

214 people used a public swimming pool. This means that

x + y = 214

1.50 for kids and $2.25 for adults. The receipt totaled to $390. This means that

1.5x + 2.25y = 390 - - - - - - - - - -1

Substituting x = 214 - y into equation 1, it becomes

1.5x

1.5(214 - y) + 2.25y = 390

321 - 1.5y + 2.25y = 390

- 1.5y + 2.25y = 390 - 321

0.75y = 69

y = 69/0.75 = 92

Substituting y = 92 into x = 214 - y, it becomes

x = 214 - 92 = 122

You might be interested in
Solve the equation. 6x−7=2x+13
Sergio [31]

Answer:

6x - 7 = 2x + 13

6x - 2x = 13 + 7

4x = 20

x = 20/4

x = 5

Hope it helps!

8 0
3 years ago
Read 2 more answers
Write 20 as a product of prime factors.
Aliun [14]

Answer:

1, 2, 4, 5, 10

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A contractor is required by a county planning department to submit one, two, three, four, or five forms (depending on the nature
Anuta_ua [19.1K]

Answer:

a) c = 1/15

b) =2/5

c) = 3/5

d) No, it cannot be the PMF of y.

Step-by-step explanation:

We have that

p_X(x)\geq0

4 0
3 years ago
What is the equation of the quadratic graph with a focus of (8, −8) and a directrix of y = −6?
yarga [219]
The vertex is exactly half way between directrix and focus. In this case the vertex is (8,-7)
               (h,k)

P is the distance between the vertex and either the directrix or focus,  in this case p = 1. 

a = 1/(4p)  or 1/(4*1) or 1/4

write the equation in vertex form

y = a(x-h)^2 + k

y = 1/4(x-8)^2 -7
4 0
3 years ago
Challenge Problem/Group Activity
8_murik_8 [283]

The different ways that they can vote is given as 16 different ways.

<h3>How to calculate the ways that they can vote</h3>

The question say that there are a total of 4 members of the board. Out of these 4, we have the choices as yes or a no.

This tells us that each person only has 2 choices of what they want.

Hence given that the board members ar 4, we would have 2⁴

= 2 * 2 * 2 * 2

= 16

Hence the different ways that they can all vote is 16.

Read more on permutations and combinations here:

brainly.com/question/4658834

SPJ1

8 0
2 years ago
Other questions:
  • Look at both for the rest of the answer choices
    8·2 answers
  • What is the y-intercept of y=7
    7·2 answers
  • Write two word expressions for each algebraic expression.<br><br> 1) 4n<br> 2) r/2<br> 3) t-5
    8·2 answers
  • For this problem, involving a weighted die, assume that the outcomes 1 through 4 are equally likely, that the outcomes 5 through
    13·1 answer
  • The sine of 72 degrees is 0.95. What's the cosine of 18 degrees?
    15·1 answer
  • I need help with all the questions plzzz show work and I’ll give u brainliest plzzzzzZzZzZz i need help plzZZz
    7·1 answer
  • Evaluate 5r-8.35s when r=12 and s=4
    12·1 answer
  • A)<br> 30-2x For x= -6<br><br> B) <br> x2 + 2x For x=-3
    12·2 answers
  • Question 1 Is (-2,-5) a solution of the function 4x - y = -13? O Solution Not a Solution ​
    7·1 answer
  • Are these figures below similar? <br>NO LINKS!! NEED ANSWER ASAP​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!