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
Aneli [31]
3 years ago
5

the ratio of chaperones to students a field trip is 1 to 9 if 81 students on the trip how many chaperones were there

Mathematics
1 answer:
kati45 [8]3 years ago
4 0
In the given question it is important to take note of every minute details that are given in the question. using these details the answer to the given question can be easily reached.
Let us assume the common ratio to be x.
Then
x + 9x = 81
10x = 81
x = 81/10
  = 8.1
A s we already know that the ratio of chaperones to students is 1:9
Then
The number of chaperones = 1 * 8.1
                                             = 8.1
So 8.1 chaperones were there in total. I hope you have got the answer you were looking for.
You might be interested in
PRACTICE ANOTHER The administration of a large university wants to take a random sample to measure student opinion of a new food
Reil [10]

Answer:

81 samples

Step-by-step explanation:

According to the empirical rule :

Possible values of the sample mean is within 3 standard deviations of the population mean :

μ ± 3 sd(x) ; sd(x) = standard deviation of sampling distribution.

3 * sd(x) = 1

sd(x) = 1/3

Recall:

Standard deviation of sampling distribution, sd(x)

sd(x) = σ / sqrt(n)

1/3 = 3 / sqrt(n)

Square both sides

1/9 = 9/n

Cross multiply :

n * 1 = 9 * 9

n = 81

3 0
3 years ago
Which number is composite<br> 5,2,9,11
horrorfan [7]

Answer:

9 number is composite is answer

Step-by-step explanation:

1,3,9 can be exactly divided by

I hope this is helpful!

7 0
3 years ago
Perimeter of a triangle is 27cm,if two sides measure 9cm and 7.8cm,find the measure of third side?
fredd [130]

Answer:

10.2cm

Step-by-step explanation:

Perimeter is the sum of the lengths of all sides.

1st side: 9cm

2nd side: 7.8cm

Perimeter: 27cm

Perimeter = 1st + 2nd +3rd side of a triangle

27cm = 9cm +7.8cm + 3rd side

3rd side = 27cm - 9cm -7.8cm

              = 10.2cm

8 0
3 years ago
Write the slope-intercept form of the equation of the line that has the same y-intercept as the black line shown and passes thro
Mazyrski [523]

Answer:

y = 0.5x + 2

Step-by-step explanation:

the y-intercept is 2, as shown in the graph

the slope is 0.5. this is because while the x-value goes up by 2, the y-value goes up by one (from 0, 2 to 2, 3).

using the slope formula of rise / run, you get 1/2, which is equal to 0.5

5 0
3 years ago
2) AT&amp;T charges an initial fee of $5.80 plus $0.30 per text. If Izzy has her cell phone
balu736 [363]

Answer: 50 texts

Step-by-step explanation: 20.8 - 5.80 = 15

15 ÷ .30 = 50

3 0
3 years ago
Other questions:
  • Find the probability that when a fair coin is flipped four times at least 2 heads
    9·1 answer
  • Help please I don't understand:(
    6·1 answer
  • What is the slope of the line determined by the cordinates (2,3) and (-6,-4)
    7·1 answer
  • A unit rate is a comparison of two _____ ? measures where the denominator is__?
    14·1 answer
  • What is 5 6/7 - 1 1/2
    13·2 answers
  • Select the correct answer.
    7·1 answer
  • The cost of a banquet is $95 plus $15 for each person attending, what is the cost for 77 people?
    10·1 answer
  • A graphic artist earns $22 an hour, and she worked 44 hours a week. what is her weekly wage?
    14·1 answer
  • How to write 2350 million in standard form ?
    7·1 answer
  • Please hurry and thanks in advance
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!