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Leviafan [203]
3 years ago
10

Better quality version of last question

Mathematics
1 answer:
nadya68 [22]3 years ago
3 0
Not sure at all but i think the 18 one
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there are 148 juniors and 272 seniors attending prom this year. if there must be three chaperones per 60 students, how many chap
valkas [14]

21 chaperones are needed for 420 students.

Step-by-step explanation:

No. of juniors = 148

No. of seniors = 272

Total = 148+272 = 420 students

3 chaperones = 60 students

1 chaperone = \frac{60}{3}=20\ students

Ratio of chaperon to students = 1:20

Let,

x be the number of chaperons for 420 students.

Ration of chaperones to students = x:420

Using proportion

Ratio of chaperones to students :: Ratio of chaperons to students

1:20::x:420

Product of mean = Product of extreme

20*x=420*1\\20x=420\\

Dividing both sides by 20

\frac{20x}{20}=\frac{420}{20}\\x=21

21 chaperones are needed for 420 students.

Keywords: ratio, proportion

Learn more about ratios at:

  • brainly.com/question/4464845
  • brainly.com/question/4522984

#LearnwithBrainly

3 0
3 years ago
Please answer and explain how you received that answer, these are the three problems I had trouble with out of 18
Varvara68 [4.7K]
9) x.14 = 6.26 ==> 14x=156 ==> x=11.1

12) OAB = Right Triangle : (27+24)² = 24² + AB² (Pythagoras)
 ==> 51² =24² + AB²  ==> 2,601 = 576 + AB² ==> AB² = 2,601 - 576 = 2,025
==> AB² = 2015 AND AB =√2025 = 45
Sorry I can't read the last page
5 0
2 years ago
Describe this number line and the numbers and fractions shown.
Leya [2.2K]

Answer:

Please check the number line attached below.

Step-by-step explanation:

Please check the attached graph below.

The line graph is representing that a number line:

  • Going from negative 2 to positive 2 in increments of 1.
  • There are 4 equal spaces between each number.

From the graph, it is clear that the point 0 is taken as arbitrary. The left side number units from 0 represent the negative values and the right-sided number units from 0 represent the positive values.

When we move on the right side from the 0, the numbers increase and when you move on the right side from the 0, the number decreases.

8 0
3 years ago
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The quotient of 35 and 7 is<br> Enter your answer
myrzilka [38]

5 because simple division

6 0
3 years ago
Find all real zeros of the function y=-7x+3
Ludmilka [50]
Here is the graph:
and I got 3/7

5 0
2 years ago
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