Marlye posted a story on her blog. On the first day there were 80 responses and on the second day there were 180 responses. What percent is the increase, 100, of the original number of responses, 80?A . 55% B. 80% C.100% D. 125%

Answer:

8 miles per hour

Step-by-step explanation:

Given that a person runs a distance of  1/ 4 of a mile in 1/ 32 of an hour.

We have to compute the unit rate by setting up a complex fraction and simplifying

Let us find distance travelled in one hour.

[tex]\frac{1}{32} hour  .... \frac{1}{4} miles\\1 hour                  ... \frac{1}{4} /\frac{1}{32}\\=\frac{32}{4} =8mph[/tex]

i.e. unit rate is he travels in one hour 8 miles.

Unit rate is normally for a single unit and other unit is left correspondingly

Here hour or time is made as unit i.e. one hour and distance travelled in one hour is calculated as 8 miles per hour.

Answer:

CircularPendicular

Step-by-step explanation:

Answer:

1

you dont provide info

Both trains will leave the station together again in B. 36 minutes.

Multiplication is the mathematical operation that is used to determine the product of two or more numbers.

We have been given that "A" train leaves a subway station every 12 minutes. An "E" train leaves every 9 minutes.

If both trains just left the station on parallel tracks, then both leave the station together again;

We will solving for the LCM (Least Common Multiple),

The LCM of 12 and 9

12 = 2 x 3 x 4 x 6 x 12

9 = 3x 1 x 9

The LCM of 12 and 9 is 36

Hence, Both trains will leave the station together again in B. 36 minutes.

Learn more about multiplications;

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The length of the page inside the margin is 5 3/4 inches.

The length of the page inside of the margin can be found by subtracting the top margin and bottom margin from the total length of the page. In this case, the top margin is 1/2 inch and the bottom margin is 3/4 inch. The length of the page inside of the margin is:

Length of page inside margin = Total length of page - Top margin - Bottom margin
Length of page inside margin = 10 inches - 1/2 inch - 3/4 inch

First, let's convert the fractions to a common denominator which is 4:

Length of page inside margin = 10 inches - 2/4 inch - 3/4 inch

Now, we can subtract the fractions to get a single fraction:

Length of page inside margin = 10 inches - 5/4 inch

Next, let's convert the mixed number to an improper fraction:

Length of page inside margin = 10 inches - 1 1/4 inches
Length of page inside margin = 10 inches - 4/4 inches - 1/4 inches
Length of page inside margin = 10 inches - 4 1/4 inches

Finally, subtracting gives us the length of the page inside of the margin:

Length of page inside margin = 10 - 4 1/4
inches = 5 3/4 inches

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Answer:

3.71

Step-by-step explanation:

We are asked to divide 70.49 by 19.

We know that 19 times 3 is equal to 57 and 19 times 4 is 76, so 19 will go in 70 for 3 times and give a remainder of 13.

9)70.49( 3

  57

    13

Now, we will bring down 4. To do so we need to put a decimal in quotient as:

9)70.49( 3.71

  57

    134

   133

        19

       19

          0

Therefore, 70.49 divided by 19 is equal to 3.71.

Using a system of linear equations, the problem is solved to find that 407 adult tickets and 839 student tickets were sold to attain a total sale of $2,874 from 1,246 tickets.

The student's question involves solving a system of linear equations which is a topic in Mathematics, typically covered at the high school level. The system to solve is based on the following two equations derived from the information given:

The total amount of money collected from selling adult and student tickets is $2,874.

The total number of tickets sold, which is 1,246.

We assign variables to represent the quantity of each type of ticket sold. Let A represent the number of adult tickets and S represent the number of student tickets. Thus, we have these two equations:

5A + 1S = 2874 (This equation represents the total money collected.)

A + S = 1246 (This equation represents the total number of tickets.)

To solve the system, we can use the method of substitution or elimination. We'll use elimination:

Multiply the second equation by 5 to have the same coefficient for A as in the first equation: 5A + 5S = 6230

Subtract the first equation from this new equation to eliminate A: (5A + 5S) - (5A + 1S) = 6230 - 2874, simplifying to 4S = 3356

Divide by 4 to solve for S: S = 839

Substitute the value of S back into the second original equation: A + 839 = 1246

Solve for A: A = 1246 - 839, so A = 407

So, 407 adult tickets and 839 student tickets were sold.

Answer:

18

Step-by-step explanation:

6 times 3 equals 18

Answer:

1) true

2) false

Step-by-step explanation:

1) 4/2=2

-4/-2=2

2)-4/2 = -2≠2

4/-2 = -2 ≠2

The equation 7(y-8)=7y+42 results in an implausible mathematical statement, meaning it has no valid solutions.

To begin, we isolate variable y in the given equation 7(y-8)=7y+42. First, expand the product on the left-hand side, which will be 7y - 56. This provides the simplified form 7y - 56 = 7y + 42. From this equation, we realize that this is an equation that has no solutions because it results in an implausible statement: -56 is not equal to 42. If we try to solve such an equation, we reduce it to a statement that does not hold true in mathematics, leaving us with no valid solutions for variable y. Therefore, this equation has no solutions.

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To solve (22/7-2/3)÷2, find a common denominator and simplify within the parentheses, then divide the result by 2, giving the answer of approximately 1.2380952381.

To find the value of (22/7-2/3) divided by 2, you first need to calculate the expression within the parenthesis. You can start by finding a common denominator for 22/7 and 2/3, which is 21. Multiplying the numerator and denominator of 22/7 by 3 and 2/3 by 7 gives you

66/21 - 14/21 = 52/21

Now, you divide this result by 2, which is the same as multiplying by 1/2:

52/21 × 1/2 = 52/42 = 1.2380952381

If you use a calculator for the initial division, you have to ensure that you enter the calculation correctly to avoid errors. For example, using the expression 337/217, when calculated, gives you about 1.5529953917.

Proper use of parentheses is important to avoid mistakes like interpreting the expression as (5.7 x 2.8) / (3.1 x 4.2) instead of 5.7 x (2.8 / 3.1) x (1 / 4.2).

To convert the mass of a 2-liter bottle of water from kilograms to grams, multiply 2 kg by 1000, resulting in 2000 grams.

A 2-liter bottle of water has a mass of 2 kilograms. To convert this mass into grams, we use the fact that 1 kilogram is equal to 1000 grams. Therefore, we perform a simple multiplication:

2 kilograms × 1000 grams/kilogram = 2000 grams.

So, the 2-liter bottle of water has a mass of 2000 grams.

Answer:

The rate for this situation is  $7 saved per weeks

Step-by-step explanation:

We get a rate when we compare two measurements with different units. In this case ,  we must compare the amount saved with time (each week).  If we have $28 saved in 4 weeks,  we can divide;

$28 saved / 4 weeks =$ 7 saved / weeks

Answer:

You should multiply with the days in March which is 744 hours. And then you have to multiply with the days in February witch is 696 and then you have to subtract them.