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saul85 [17]
3 years ago
13

When a teacher divided her students into groups of four, she had three students remaining. when she divided them into groups of

five, she had four students remaining. there were fewer than 40 students in the class. how many students could be in the class?
Mathematics
1 answer:
AfilCa [17]3 years ago
5 0
39 students....39/4 = 9 remainder 3
                       39/5 = 7 remainder 4

ur answer is 39
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Two weeks in a row, the golf course hosts a group of golfers. The second week had 10 more golfers than the first week. Use the d
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Answer:

Option A.

Step-by-step explanation:

From the first dot plot the given data set for week 1 is

62, 68, 68, 68, 69, 70, 70, 72, 72, 72, 75, 75, 76, 78, 78, 80, 80, 80, 89, 89

Divide the data in 4 equal parts.

(62, 68, 68, 68, 69), (70, 70, 72, 72, 72), (75, 75, 76, 78, 78), (80, 80, 80, 89, 89)

Range=Maximum-Minimum=89-62=27

Median=\frac{72+75}{2}=73.5

Mean=\frac{\sum x}{n}=\frac{1491}{20}=74.55

From the second dot plot the given data set for week 2 is

62, 68, 68, 68, 69, 70, 70, 72, 72, 72, 75, 75, 76, 78, 78, 80, 80, 80, 85, 86, 86, 86, 88, 88, 88, 88, 89, 89, 89, 89

Divide the data in 4 equal parts.

(62, 68, 68, 68, 69, 70, 70), 72, (72, 72, 75, 75, 76, 78, 78), (80, 80, 80, 85, 86, 86, 86), 88, (88, 88, 88, 89, 89, 89, 89)

Range=Maximum-Minimum=89-62=27

Median=\frac{78+80}{2}=79

Mean=\frac{\sum x}{n}=\frac{2364}{30}=78.8

The range for Week 1 is equal to the range for Week 2.

The median for Week 2 is more than the median for Week 1.

The mean for Week 2 is more than the mean for Week 1.

Therefore, the correct option is A.

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3 years ago
To cook the meat for the pasta dish takes 2 minutes less than four times the amount of time it takes to boil the noodles. The ti
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Answer:

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Step-by-step explanation:

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3 years ago
Two fair dice are tossed.
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there are 6 possibilities on each dice.  Therefore 6 x 6 = 36 possible outcomes.

What is the probability that the sum of the number of dots shown on the upper faces is equal to 7?  

1,6   2,5   3,4   4,3   5,2   6,1  there are 6 possible ways to get 7

6/36 = 1/6 = .1666...

What is the probability that the sum of the number of dots shown on the upper faces is equal to 11?

5,6    6,5    there are 2 possible ways to get 11

2/36 = 1/18 = .0555...

What is the probability that you roll "doubles" that is, both dice have the same number on the upper face?

1,1    2,2   3,3    4,4   5,5    6,6  there are 6 possible ways to get doubles

6/36 = 1/6 = .1666...

What is the probability that both dice show an odd number?

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3 years ago
Which unit rate is equivalent to 19 miles per gallon?
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Answer:

B

Step-by-step explanation:

57 over three means

\frac{57}{3}

It is the same as asking how many times does 3 go into 57, or how many miles is their per one gallon.

57 divided by 3 equals 19, so B would be the correct answer.

7 0
2 years ago
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