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Fittoniya [83]
2 years ago
14

PLZ ANSWER FAST!!!!! Mr. Miller took a poll of which students in his class have gone to a water park. If 7/9 of his class have v

isited a water park for a total of 21 students, then how many total students are in Mr. Miller's class?
Mathematics
2 answers:
Scilla [17]2 years ago
7 0

Answer:

27

Step-by-step explanation:

Let x be the total number of students. So, turning the words of the problem into an equation, we get:

7/9x = 21,

then, 7x = 189

so, x = 27.

hammer [34]2 years ago
5 0

Answer:

29 students

Step-by-step explanation:

divide by 7 to get 1/9 then multiply by 9 to get total.

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YES CORRECT BOI

Step-by-step explanation:

8 0
2 years ago
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Triangle A’ B’ C’ is a dilation of triangle abc what is the scale factor
Ksivusya [100]

Answer:

1/2

Step-by-step explanation:

AC=18 and A'C'=9

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18(x)=9

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7 0
3 years ago
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The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between 0 and 5 m
bezimeni [28]

Answer: 0.75

Step-by-step explanation:

Given : Interval for uniform distribution : [0 minute, 5 minutes]

The probability density function will be :-

f(x)=\dfrac{1}{5-0}=\dfrac{1}{5}=0.2\ \ ,\ 0

The probability that a given class period runs between 50.75 and 51.25 minutes is given by :-

P(x>1.25)=\int^{5}_{1.25}f(x)\ dx\\\\=(0.2)[x]^{5}_{1.25}\\\\=(0.2)(5-1.25)=0.75

Hence,  the probability that a randomly selected passenger has a waiting time greater than 1.25 minutes = 0.75

7 0
3 years ago
Can someone help me with this. ^_^ THANKS
Fynjy0 [20]
It would be B. because it's just 7 times 1.5
4 0
3 years ago
Please can u help simplify
Triss [41]

Answer:

frac{21x^6y^5}{14x^2y^9}

Factor the number =\frac{7\cdot \:3x^6y^5}{14x^2y^9}

Factor the number 14=7. 2 =\frac{7\cdot \:3x^6y^5}{7\cdot \:2x^2y^9}

Cancel\:the\:common\:factor:}\:7 =\frac{3x^6y^5}{2x^2y^9}

Step-by-step explanation:

4 0
2 years ago
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