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
DENIUS [597]
3 years ago
14

The jurassic zoo charges $10 for each adult admission and $8 for each child. The total bill for the 139 people from a school tri

p was $1174.How many adults and how many children went to the zoo?
Mathematics
1 answer:
matrenka [14]3 years ago
5 0

Answer:

adults=31, children = 108

Step-by-step explanation:

a + c = 139 equation 1

10a + 8c = 1174 equation 2

a=139-c isolate a from equation 1

10(139-c) + 8c = 1174 substitute a value into equation 2

1390-10c + 8c = 1174

-2c = -216

c = 108

use value of c in either equation to find value of a

a + c = 139

a + 108 =139

a = 31

You might be interested in
Kelley Katherine takes a trip to Paris. When she was standing near the 1063 foot tall Eiffel tower, she noticed that her shadow
alina1380 [7]

In order to complete this, we must write it as a ratio. This would look like: 2.4:5.25=x:1063. In order to solve for x, we must first divide 5.25 by 2.4, which I will mark as y, then we take y and divide it into 1063, giving us the answer of 485.94, rounded will give you 486. x now equals 486.

5 0
3 years ago
The perimeter of a rectangle is 48 inches off the length is twice the width what is the length of the rectangle
sammy [17]

Answer:

Length: 16

Width: 8

Step-by-step explanation:

8 + 8 + 16 + 16 = 48

7 0
2 years ago
I’ve been trying to figure out this question on my homework and I’ve been confused for days now.
dsp73

Answer:

18m^12n^3

Hope this helps!!

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
How would u write 64 square centimeters?Also for my problem would I put 70 feet or 70 square feet?
Leto [7]
64cm2 but make the number two small and in the corner of the m
70 square feet
3 0
2 years ago
Read 2 more answers
The following lists the joint probabilities associated with smoking and lung disease among 60-to-65 year-old men. Has Lung Disea
Anna71 [15]

Answer:

4.11% probability that he has lung disease given that he does not smoke

Step-by-step explanation:

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Does not smoke

Event B: Lung disease

Lung Disease/Nonsmoker 0.03

This means that P(A \cap B) = 0.03

Lung Disease/Nonsmoker 0.03

No Lung Disease/Nonsmoker 0.7

This means that P(A) = 0.03 + 0.7 = 0.73

What is the probability of the following event: He has lung disease given that he does not smoke?

P(B|A) = \frac{0.03}{0.73} = 0.0411

4.11% probability that he has lung disease given that he does not smoke

5 0
2 years ago
Other questions:
  • Write the equation of the line in point-slope form given the line runs through the points (-1, -3) and (2, 3). ***rewrite in slo
    7·1 answer
  • Mikhail has a savings portfolio containing $12,000, of which $3,000 is invested in CD. His friend, Ivan, has $2,000 invested in
    7·2 answers
  • I’ll give brainly
    10·2 answers
  • Assume standard deviation of all invoices is $200. Sample 100 invoices. What is the standard deviation of xbar
    9·1 answer
  • Two cuboids have the same surface area
    11·1 answer
  • All these answers correct <br><br> Look at picture <br><br> Complementary angles
    7·2 answers
  • List the first five multiples of 30
    10·2 answers
  • Two angles are supplementary. One angle measure 17 more than three times the other. find the measure of the larger angle.
    9·1 answer
  • Find the quotient: 28 ÷ 4 2/3
    10·2 answers
  • Please help me find the area of the shape
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!