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EleoNora [17]
4 years ago
10

In a gymnasium, the weights of all people come to exercise will be recorded. One day the weights of 10 people were recorded as 5

8 kg, 70 kg, 59.5 kg, 62 kg, 66.4 kg, 72 kg, 81.3 kg, 75 kg, 83.3 kg and 75.5 kg. How many of them weigh more than the average weight? a) 4 b)5 c) 6 d) 7
Mathematics
1 answer:
Irina18 [472]4 years ago
5 0

Answer:

B.

Step-by-step explanation:

Average = \frac{58 + 70+59.5+62+66.4+72+81.3+75+83.3+75.5}{10} =\frac{703}{10} =70.3

Now find how many are greater than 70.3

72, 81.3, 75, 83.3, and 75.5

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I will give you brainilest.
vivado [14]

Answer:

70 degrees

Step-by-step explanation:

Moving from one hour number to the next (12 to 1, 3 to 4, etc) moves the hand of the clock 30 degrees. Using this, we know that the hour hand moved 60 degrees to get to the hour number 2. Then, the angle the hour hand moved because of the minute hand can be calculated by doing (20/60)*30=10. So the final answer would be 70 degrees.

6 0
3 years ago
A 15-inch candle burns down in 10 hours. at what rate does the candle burn in inches per hour
Monica [59]

Answer:

5 inches per hour

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which graph represents the solutions of the inequality p ≥ -1
soldi70 [24.7K]

Option D:

The solution of the inequality p is –1, 0, 1, 2, 3, ...

Solution:

Given inequality is p ≥ –1.

To find the solution for the inequality.

p ≥ –1 means the value of p is greater than or equal to –1.

That is p can be –1, 0, 1, 2, 3, ...

<u>Now find which option is correct:</u>

Option A:

In this inequality, the solution is –1, –2, –3, ...

–3 and –2 are less than –1.

But p is greater than –1.

So, it is not the solution of the inequality.

Option B:

In this inequality, the solution is 0, 1, –1, –2, –3, ...

Here 0 > –1 and 1 > –1 but –3 and –2 are less than –1.

So, it is not the solution of the inequality.

Option C:

In this inequality, the solution is 0, 1, 2, 3, ...

Here 1 > –1 , 2 > –1 and so on.

But 0 is also greater than –1. This is missing in the graph.

So, it is not the solution of the inequality.

Option D:

In this inequality, the solution is –1, 0, 1, 2, 3, ...

Here –1 = –1, 0 > –1, 1 > –1,  and so on.

This graph represents all the values of p.

So, it is the solution of the inequality.

Hence option D is the correct answer.

The solution of the inequality p is –1, 0, 1, 2, 3, ...

6 0
4 years ago
There are 3 cans that store 9 tennis balls. Consider the number of balls per can a.find the constant of proportionality for this
sergeinik [125]

Answer:

Write an equation that will model the proportional relationship given in each real world situation.

1. There are 3 cans that store 9 tennis balls. Consider the number of balls per can.

a. Find the constant of proportionality for this situation.

9 balls (B)

_________ = 3

3 cans (C)

b. Write an equation to represent the relationship.

b = 3c

5 0
3 years ago
Describe how to solve the inequality 3x+4&lt;13 using algebra tiles
vladimir1956 [14]

The solution is x < 3.

Solution:

The given expression is 3x + 4 < 13.

To solve the given inequality.

3x + 4 < 13

Subtract 4 tiles on both sides of the inequality.

⇒ 3x + 4 – 4 < 13 – 4

⇒ 3x < 9

Divide by 3 tiles on both sides of the inequality.

⇒ \frac{3x}{3} =\frac{9}{3}

⇒ x < 3

Hence the solution is x < 3.

4 0
3 years ago
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