admin

2 months ago

Guest #1561

2 months ago

We have been given that it takes 3.5 hours to complete 500-mile Nascar race.

We know that

**1 hour = 60 minutes**

**and 1 hour = 3600 seconds.**

Therefore, when we calculate the time taken in minutes we need to multiply 3.5 to 60 and to find the time to complete the race in seconds we need to multiply 3.5 by 3600.

Thus, the time taken to complete the race

**Hence, it takes 210 minutes to complete the race.**

Now, let us find the time in seconds. The number of seconds to complete the race is

**Therefore, the order of magnitude of the number of seconds is 4.**

Guest #1562

2 months ago

210 minutes.

10^4 seconds.

__________

10^4 seconds.

__________

Question

A school buys pens and pencils from a supplier. The supplier charges $0.05 for each pencil and $0.25 for each pen. The school pays $440 for the pens and pencils. If the school bought 1500 pencils, how many pens did the school buy?

Solution 1

Hi there! The answer is **1460 pens**

The school pays $440 for the pens and pencils.

If the school bought 1500 pencils, their total expense on pencils can be found by multiplying the amount of pencils, by the price per pencil.

Therefore, the total expense on pencils is $75. Now we can calculate that there is $440 - $75 = $365 left for buying pens.

To finally find the amount of pens bought, we need to divide our remaining budget by the price per pen.

Hence, the school bought**1460 pens. **

The school pays $440 for the pens and pencils.

If the school bought 1500 pencils, their total expense on pencils can be found by multiplying the amount of pencils, by the price per pencil.

Therefore, the total expense on pencils is $75. Now we can calculate that there is $440 - $75 = $365 left for buying pens.

To finally find the amount of pens bought, we need to divide our remaining budget by the price per pen.

Hence, the school bought

Solution 2

**Answer:**

the school bought 1300 pens

**Step-by-step explanation:**

Question

Abel uses a probability simulator to roll a six-sided number cube 100 times and to flip a coin 100 times. The results of the experiment are shown below: Number on the Cube Number of Times Rolled
1 12
2 18
3 30
4 22
5 10
6 8
Heads Tails
34 66
Using Abel's simulation, what is the probability of rolling a 2 on the number cube and the coin landing on tails?

Solution 1

He running of the simulation serves to give us an approximate probability of each of the outcomes, so in this case, P(Tails)=66/100 and P(2)=18/100.The probability of two independent things occurring can be written as P(A)*P(B).Therefore, the probability of a 2 and tails is (66/100)*(18/100)=0.1188= 1188/10000

Solution 2

**Answer:**

1188/10000

**Step-by-step explanation:**

the guy above me explains the answer.

Question

Arrange these numbers from least to greatest: -5/8, -7/9, -4/5, -3/7 A. -7/9 -5/8 -3/7 -4/5
B. -4/5 -7/9 -5/8 -3/7
C. -4/5 -5/8 -7/9 -3/7
D. -3/7 -4/5 -5/8 -7/9

Solution 1

For this question, the easiest way is to find the decimal for each fraction.

so you can say:

-5/8 = -0.6

-7/9 = -0.7

-4/5 = -0.8

-3/7 - -0.4

and because they are all negative numbers so from the least to the greatest will be:

-4/5 < -7/9 < -5/8 < -3/7

so the answer is B :)))

i hope this is helpful

have a nice day

so you can say:

-5/8 = -0.6

-7/9 = -0.7

-4/5 = -0.8

-3/7 - -0.4

and because they are all negative numbers so from the least to the greatest will be:

-4/5 < -7/9 < -5/8 < -3/7

so the answer is B :)))

i hope this is helpful

have a nice day

Solution 2

**Answer:**

b

**Step-by-step explanation:**

you have to find the common denominator or turn it into a decimal

Question

Which of the graphs displays the expression |5|? A) B) C) D)

Solution 1

**Answer:**

**Step-by-step explanation:**

Which of the graphs displays the expression |5|?

A)

B)

C)

D)

The answer id ( D )

have a great and hope this helps :)!

Question

How do you find the area of a congruent triangle with only 2 sides?

Solution 1

You can't get the area of a triangle knowing only the length of two sides unless you know at least one of the angles.

Question

The table below shows the values of y for different values of x: x y
0
0
1
5
2
10
3
15
Which equation shows the relationship between x and y?
x = 5y
y = 5 + x
x = 5 + y
y = 5x

Solution 1

**Answer:**

**D. **

**Step-by-step explanation:**

We have been given a table of values. We are asked to find the equation that shows the relationship between x and y.

x y

0 0

1 5

2 10

3 15

Upon looking at our given table, we can see that with each increase in x value, the value of x increases by 5. This means that slope of our given line is 5.

We can also see that initial value or y-intercept is 0.

Upon substituting our given values in slope intercept form of equation, we will get:

**Therefore, our required equation is and option D is the correct choice.**

Solution 2

X y

0 0

1 5

2 10

3 15

The answer is y = 5x

we can check this by plugging in the numbers from the table:

5 = 1(5)

5 = 5

This makes this answer correct because it makes the equation true.

0 0

1 5

2 10

3 15

The answer is y = 5x

we can check this by plugging in the numbers from the table:

5 = 1(5)

5 = 5

This makes this answer correct because it makes the equation true.

Question

A bag holds 500 grams of sand. About how many grains of sand are in the bag? There are about 1,000 grains of sand in 1 gram.

Solution 1

500000 is the answer you are looking for my friend :D

Solution 2

1,000=1 gram so you would multiply 1,000 by 500 which is 500,000. So 500,000 grains of sand. Hope this helps!

Question

Sara got 88, 90, 75, 78, 100, 54, 90, 100, 45, and 60 on her English tests. Lee got 77, 67, 99, 79, 100, 65, 79, 89, 58, and 67 on his English tests. What is the mean of Sara's English tests? What is the mean of Lee's English tests? please answer both questions

Solution 1

The mean is the average, so I added up all the numbers and divided that by the number of tests:

**Sara's mean: 78**

**Lee's mean: 78**

Solution 2

Sara:

88, 90, 75, 78, 100, 54, 90, 100, 45 and 60

add them all up which is 780

then divide by the number of test results you have which is 10

780/10

Sara's mean is 78 on her test scores.

Lee:

77, 67, 99, 79, 100, 65, 79, 89, 58, 67

add them all up which is 780

divide by the number of test results 10

780/10

Lee's mean is 78 on her test scores.

88, 90, 75, 78, 100, 54, 90, 100, 45 and 60

add them all up which is 780

then divide by the number of test results you have which is 10

780/10

Sara's mean is 78 on her test scores.

Lee:

77, 67, 99, 79, 100, 65, 79, 89, 58, 67

add them all up which is 780

divide by the number of test results 10

780/10

Lee's mean is 78 on her test scores.

Question

Translate the sentence into an equation.The difference of a number times 3 and 8 is 2. Use the variable c for the unknown number. How do I figure this out?

Solution 1

I hope that this is what you are looking for....

**C X 3(8) = 2**

The parenthesis means to multiply again.

Hope that this helps... :)

The parenthesis means to multiply again.

Hope that this helps... :)

Solution 2

-3c+8=2 you minus 8 on both sides of the equation then you'll get -6 then divide -3c by -6 so c equals to 2 c=2

Question

How many times can 448 go into 8

Solution 1

It goes in 56 times. 448/8=56

Solution 2

It could go into it 56 times. You could have just divide it but heres the answer

Mathematics
2647929

History
842281

English
748681

Biology
586256

Social Studies
406852

Chemistry
368373

Business
348603

Physics
324927

Health
199835

Spanish
130075

Geography
112100

Computers and Technology
106146

Arts
77164

Advanced Placement (AP)
23675

World Languages
23213

French
22589

Engineering
19607

Law
17108

Medicine
13966

SAT
10987

German
3389

High School
3423409

Middle School
2092250

College
1518097