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algol [13]
3 years ago
15

The glass container shown is filled to a height of 2.25 inches. What percentage of the container is filled with sand?

Mathematics
2 answers:
m_a_m_a [10]3 years ago
4 0
1. The volume of the container shown in the figure attached, is:

 V=(5 in)(4.5 in)(3 in)
 V=67. 5 in³

 2. The problem says that the container<span> is filled with sand to a height of 2.25 inches. Then, the volume of the sand into the container is:

 V=</span>(5 in)(4.5 in)(2.25 in)
 V=50.62 in³

 3. Therefore, you have:

 67.5 in³----100%
 50.62 in³---x

 x=50.62x100/67.5
 x=74.99%
<span>
 What percentage of the container is filled with sand?</span> 

 The answer is: 74.99%
dalvyx [7]3 years ago
3 0
How did u make a picture of it plz tell me
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Given right triangle ABC with a=50, and m
kramer

Answer:

A=50 B=40 C=90

Step-by-step explanation:

B is a right angle so its automatically 90 degrees since A=50 and a triangle has to be 180 degrees 90+50= 140, 180-140=40.

3 0
2 years ago
Solve for g please!!!!!!!!!!!!!!
alexandr402 [8]
G = m/5t- Q^2. Hope that helps.
4 0
2 years ago
For women aged 19-24, systolic blood pressures (in mm Hg) are normally distributed with a mean of 114.8 and a standard deviation
Mrac [35]

Answer: p = 0.00714

Step-by-step explanation:

Since the population standard deviation of the distribution is known, the z test ( which produces the z score) is the perfect test for finding the probability of the data set in the question.

From the question,

Population mean (u) = 114.8

Sample mean (x) = 121.5

Population standard deviation (σ) = 13.1

Sample size (n) = 23

The z score formulae is given below as

Z = x - u/σ/√n

Z = 121.5 - 114.8/(13.1/√23)

Z = 6.7/(13.1/√23)

Z = 6.7/2.731

Z = 2.45.

The question is interested in knowing the probability of mean systolic blood pressure greater than 121.5.

This implies that we are looking for the probability at which our z score is greater than 2.45: P(z>2.45)

The z score (z=2.45) has divided the distribution into two regions, z< 2.45 ( area to the left of the distribution) and z>2.45 ( area to the right of distribution).

Hence, p(z>2.45) + p(z<2.45) = 1

To get a the probability, we have to use a standard normal distribution table.

The table we have here gives probability of the distribution to the left ( that's area towards the left), hence we need to find p(z<2.45) first

From the table p(z<2.45) = 0.99286

But p(z>2.45) = 1 - p(z<2.45)

p(z>2.45) = 1 - 0.99286

p(z>2.45) = 0.00714

8 0
3 years ago
Find the greatest common factor of 7 and 7.
marusya05 [52]

Answer:

7

Step-by-step explanation:

Obviously

5 0
3 years ago
Read 2 more answers
Keenan currently does a total of 8 pushups each day. He plans to increase the number of pushups he does each day by 2 pushups un
Viefleur [7K]

Answer:

12

Step-by-step explanation:

Given that

Current count of pushups = 8

Number of increase in pushups each day = 2

The desired pushup goal on daily basis = 30

Days require = x= ?

as we can conclude the number of pushups would increase by following sequence

8, 10, 12, 14, 16, ......30

Now as we can be the number of pushups by a constant number each day it means this sequence is arithmetic.

First term of our sequence is X1 and the final term is Xn, and the difference between two consecutive terms (Common Difference) is 2.

So

X1 = 8

Xn = 30

d = 2

Using the formula of nth term for arithmetic sequence

Xn = X1 + (n-1)d

Substituting the values

30 = 8 + (n-1)2

30-8 = (n-1)2

22 = 2n -2

22+2 = 2n

2n = 24

n = 24/2

n = 12

So, it means on the 12th day he will have to do 30 pushups if he starts from 8 and increase 2 pushups each day.


5 0
3 years ago
Read 2 more answers
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