On a survey, 8 students reported how many minutes it takes them to travel to school. Here are their responses. 16, 11, 15, 13, 13, 11, 4, 12

Find the mean travel time for these students.
If necessary, round your answer to the nearest tenth.

Answer:

Divide 63/9=7

7*2= (the number of teachers) 14

There are 14 teachers for 63 students.

Answer:

teachers 2:9 students

63/ 9 = 7

7 X 2 = 14

teachers 14:63 students

there are 14 teachers

Answer:

28 and 12

Step-by-step explanation:

The sum of two numbers is 40 and the difference is 16. What are the number? x+y=40 Substitute for x from above. (y+16)+y=40 Subtract 16 from each side.

The two numbers whose sum is 40 and difference is 16 are 28 and 12.

Let's denote the two numbers as x and y. We are given the following information:

x + y = 40 (equation 1)

x - y = 16 (equation 2)

To solve for x and y, we can use a method called elimination or substitution. Let's use the elimination method here.

Adding equation 1 and equation 2, we eliminate the y term:

(x + y) + (x - y) = 40 + 16

2x = 56

x = 28

Now we can substitute the value of x back into equation 1 to solve for y:

28 + y = 40

y = 40 - 28

y = 12

Therefore, the two numbers are 28 and 12.

To know more about numbers click here:

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Answer:

Jill  = 125lb

Pete = 175lb

Eddie = 157lb

Ken = 140lb

Step-by-step explanation:

Given

Represent Jill with J; Ken with K; Pete with P and Eddie with E

[tex]J = K - 15[/tex]

[tex]P = 50 +J[/tex]

[tex]E = P - 18[/tex]

[tex]J + K + P + E = 597[/tex]

Required

Determine the weight of each

Substitute 50 + J for P in [tex]E = P - 18[/tex]

[tex]E = 50 + J - 18[/tex]

[tex]E = J + 50 - 18[/tex]

[tex]E = J + 32[/tex]

Make K the subject in [tex]J = K - 15[/tex]

[tex]K = J + 15[/tex]

Substitute [tex]K = J + 15[/tex], [tex]E = J + 32[/tex], [tex]P = 50 +J[/tex] in [tex]J + K + P + E = 597[/tex]

[tex]J + J + 15 + 50 + J + J + 32 = 597[/tex]

Collect Like Terms

[tex]J + J +J + J = 597 - 32 - 50 - 15[/tex]

[tex]4J = 500[/tex]

[tex]J = 500/4[/tex]

[tex]J = 125lb[/tex]

Substitute 125 for J in [tex]P = 50 +J[/tex]

[tex]P = 50 + 125[/tex]

[tex]P = 175lb[/tex]

Substitute 175 for P in [tex]E = P - 18[/tex]

[tex]E = 175 - 18[/tex]

[tex]E = 157[/tex]

Substitute 125 for J in [tex]K = J + 15[/tex]

[tex]K = 125 + 15[/tex]

[tex]K = 140[/tex]

Answer:

Ashley=1450

Ben= 1080

Mischa= 1210

Step-by-step explanation:

M= Mischa

B= Ben

A= Ashley

M+B=2290

A+B=2530

M+A=2660

M-A= -240

so 2M = 2420, and M= 1210

Then

1210 + B = 2290

B= 1080

Then

1210 + A= 2660

A= 1450

Answer:

its 10%

Step-by-step explanation:

Answer:

10%

Step-by-step explanation:

We need to make the denominators equal for both fractions to figure out how much sugar was used in all.

3/4 + 1/2

We can multiply the numerator and the denominator by 1 for 3/4. We can multiply the numerator and the denominator by 2 for 1/2. Therefore, we will get 1.

3/4 + 1 = 1 3/4 OR  7/4

Answer is 7/4 or 1 3/4.

Answer:

1: Size

2: Congruent

3: Proportional

Step-by-step explanation:

Hope that helped

Answer:

poopoopeepee

Step-by-step explanation:

Answer:

692.7cm²

Step-by-step explanation:

A = πr²/2 = 220.5 * π [cm²] ≈ 692.72 [cm²]

Answer:

The girl has 0 left. You on the other hand has around 4.99 to 5.01 lollipops

Step-by-step explanation:

thankfully they were poisoned lollipops that the girl was secretly hired to have you take them for you to eat.

.  。    •  　ﾟ  。  　.  　.      .    　。   。　.  .   。  ඞ 。  . •The girl was an imposter. . .   。　.    　。      ﾟ  　.    　. ,    .  .   .

im sorry i had to put that

Answer:Daniel is faster

Step-by-step explanation:

Daniel : 5 kilometers is 5000 meters.

5000 / 40 is 125 meters per minutes

Andy: 4550 divided by 37 is 122.97 which is 2.3 meters per minute slower than Daniel

Answer:

7

Step-by-step explanation:

Answer:

t218

Step-by-step explanation:

Answer:

y= -2x and (3,-6)

Step-by-step explanation:

h

Answer:

Jonathan is 39

Jayla is 78

Step-by-step explanation:

13: Sam

? 1: Jonathan 3*sam

? 2: Jayla 2* Jonathan

13 * 3 = 39

Jonathan is 39

39 * 2 =  78

Jayla is 78

Answer:

simplified, it is 3m^3+6f+267

Answer: The seagull is faster

Step-by-step explanation:

An owl travels 8 1/3 miles in 3/4 hour. The miles per hour of the owl would be:

= 8 1/3 ÷ 3/4

= 25/3 ÷ 3/4

= 25/3 × 4/3

= 100/9

= 11 1/9 miles pee hour

A seagull travels 12 1/2 miles in 2/3 an hour. The miles per hour of the seagull would be:

=12 1/2 ÷ 2/3

= 25/2 ÷ 2/3

= 25/2 × 3/2

= 75/4

= 18 3/4 miles per hour

Based on the calculation above, the seagull is faster.

Answer:

11 1/9 miles per hour<---- owls speed

I seagle is faster

Step-by-step explanation:

i just know bc i got it right on iready... :)

Answer:

where is the tension.......?

Step-by-step explanation:

Answer: $12.75 for the popcorn and $48.00 for the drinks.

Step-by-step explanation:

Answer:

The dimensions of the pool are:

Width: 8.944 feet

Length: 17.888 feet

Step-by-step explanation:

From Geometry, the area of a rectangle ([tex]A[/tex]), measured in square feet, is determined by the following equations:

[tex]A = w\cdot l[/tex] (1)

Where:

[tex]w[/tex] - Width, measured in feet.

[tex]l[/tex] - Length, measured in feet.

If we know that [tex]w = x[/tex], [tex]l = 2\cdot x[/tex] and [tex]A = 160\,ft^{2}[/tex], then we get the following second order polynomial:

[tex]2\cdot x^{2}-160 = 0[/tex] (1)

And we solve the expression for [tex]x[/tex]:

[tex]2\cdot x^{2} = 160[/tex]

[tex]x^{2} = 80[/tex]

[tex]x = \sqrt{80}\,ft[/tex]

[tex]x \approx 8.944\,ft[/tex]

Then, the dimensions of the pool are, respectively:

[tex]w \approx 8.944\,ft[/tex] and [tex]l \approx 17.888\,ft[/tex]

Answer:

The complete table is as follows:

x                     y

1                     7

4                    13          

5                    15

10                  25

Step-by-step explanation:

Given the function

[tex]y=2x+5[/tex]

Given the table

x                      y

1                     blank

4                    blank            

5                    blank

10                  blank

Substitute x = 1 in the function

y = 2x+5

y = 2(1)+5 = 2+5 = 7

so, when x = 1, y = 7 i.e. (1, 7) is the point on the table

Substitute x = 4 in the function

y = 2x+5

y = 2(4)+5 = 8+5 = 13

so, when x = 4, y = 13 i.e. (4, 13) is the point on the table

Substitute x = 5 in the function

y = 2x+5

y = 2(5)+5 = 10+5 = 15

so, when x = 5, y = 15 i.e. (5, 15) is the point on the table

Substitute x = 10 in the function

y = 2x+5

y = 2(10)+5 = 20+5 = 25

so, when x = 10, y = 25 i.e. (10, 25) is the point on the table

Therefore, the complete table is as follows:

x                     y

1                     7

4                    13          

5                    15

10                  25

Answer:

Cost of a kit is $20

cost of a microscope is $80

Step-by-step explanation:

Here, we want to write a set of equations and solve

Let the cost of a microscope be $m while the cost of a kit be $k

Total cost of 38 microscopes will be 38 * m = $38m

Total cost of 47 kits = 47 * k = $47k

The sum of these is $3980

That will be;

47k + 38m = 3980 ••••••(i)

A microscope cost 4 times a kit

Mathematically;

m = 4k •••••••••(ii)

Substitute ii into i

47k + 38(4k) = 3980

47k + 152k = 3980

199k = 3980

k = 3980/199

k = $20

Recall;

m = 4k

m = 4 * 20 = $80

3a+7

Step-by-step explanation:

Answer:

120

Step-by-step explanation:

No. of plastic cups = 24

No. of straws =20

We need to find the smallest number of each that could be bought so that you had the same amount of cups and straws.

Prime factrisation of 24 = 2×3×2×2

Prime factorisation of 20 = 2×5×2

LCM = 120

Hence, the smallest number of each type will be 120.