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enot [183]
4 years ago
12

Ty makes balloon animals for birthday parties and wants to know what color balloons to buy. He surveys the 30 children closest t

o him. Identify
the type of sampling method.
Mathematics
1 answer:
anzhelika [568]4 years ago
4 0

Answer:

The type of method is convenience; he isn't posting advertisements to volunteer(self-selected) and he isn't following an algorithm(systematic), therefore, he's using convenience.

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D.(x,y-3)
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3 years ago
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Rewrite 4 1/3– as an improper fraction.
Dafna11 [192]

Answer:

4 1/3= 13/3

Mutiply the whole number with the denominator. 4*3= 12. Add 12 with the numerator. 12+1= 13 .

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4 years ago
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The numerator of a fraction is 2 less then its denominator. If 2 is subtracted from the numerator and 1 is the added to the deno
serious [3.7K]

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Probably, 3/1.

Step-by-step explanation:

Just do the reverse of the instructions and you get your answer.

1+2=3

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7 0
3 years ago
Gary earned an average score of 77 on his first five quizzes. What score will he need on his next quiz to have an overall averag
Lera25 [3.4K]

Answer:

The next score he needs to have an overall average of 79 is 89.

Step-by-step explanation:

Gary earned an average score of 77 on his 5 quizzes . The number of score he needs to have an average of 79 can be calculated below.

average score = 77

number of quizzes = 5

sum of Garry score = a

a/5 = 77

cross multiply

a = 77 × 5

a = 385

let

the next score he needs be  b to score an average of 79

average = 79

number of quizzes = 6

385 + b/6 = 79

cross multiply

385 + b = 474

b = 474 - 385

b = 89

The next score he needs to have an overall average of 79 is 89.

3 0
4 years ago
In ΔCDE, the measure of ∠E=90°, DC = 5, CE = 4, and ED = 3. What ratio represents the sine of ∠C?
lianna [129]

Answer:

As E is right angle , CD is hypotenuse , and ED is perpendicular and CE is the base .

Thus sinC = Perpendicular/ Hypotenuse

sinC = ED/CD

sinC = 3/5

3 1
3 years ago
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