You move right 7 units. You end at (8, 7). Where did you start?

At a college, 7 out of 10 students work either a full-time or a part-time job in addition to their studies. If 4900 students wer

Rina8888 [55]

Answer:

1470 students do not have a full-time or part-time job

Step-by-step explanation:

We have a relationship between students who have a part-time job and those who do not. The ratio is 7 out of 10 students.

Then we use this relationship as a conversion factor.

If of 10 students, 7 of them have a job, then of 4900 students, how many of them have a job?

$4900 * \frac{7}{10}=3430$ students

Finally, those who do not have a job are:

$4900- 3430 = 1470$

3 0

3 years ago

Theodore needs to mix a 10% fungicide solution with a 50% fungicide solution to create 100 milliliters of a 26% solution. How ma

solmaris [256]

Answer:

Therefore 40 milliliter of 50% fungicide solution is required

Therfore 60 milliliter of 10% fungicide solution is required

Step-by-step explanation:

i) Let the 10% fungicide solution have x milliliter and the 50% fungicide solution have y milliliter.

ii) Therefore 10x + 50y = 26(x + y)

x + y = 100

iii) form the first equation in ii) we get

16 x = 24 y Therefore $x = \frac{24}{16} y = \frac{3}{2} y$

iv) substituting the value obtained in iii) in the second equation in ii) we get

$\frac{3}{2} y + y = \frac{5}{2} y = 100$

Therefore y = 100 ÷ 2.5 = 40 milliliter

Therfore x = 100 - 40 = 60 milliliter

4 0

3 years ago

the volume of a gas varies inversely as the pressure upon it. if the volume of the gas is 160 cubic centimeters at a pressure of

marin [14]

It was stated in the problem that a given volume of a is inversely proportional with the pressure of the system. It means that the as the volume increases, the pressure would decrease and as the volume decreases, the pressure would increase. We would express it as:

V α 1/P

To change it to an equality, we introduce a proportionality constant, k. We do as follows:

V = k/P

So, to determine what is asked, we need to first calculate for the value of k.

V = k/P
At V = 160 m^3 P = 108 cmHg
160 = k / (108)
k = 17280

Thus, at P = 87 cmHg
V = 17280 / 87
V = 198.62 m^3

4 0

3 years ago

if the radius of Circle A is 2 inches the radius of circle B is 3 1/4 inches and the radius of circle C is 1 inch what is the pe

just olya [345]

39.26in hope this helps make me brainliest

5 0

4 years ago

Read 2 more answers

Angie has a square dog pen with a perimeter of 20 meters. She wants to put a diagonal piece of fencing inside her pen to cut it

Dima020 [189]

Answer: 7.07 miles

Step-by-step explanation:

Hi, to answer this, first, we have to find the length of the square dog pen.

Perimeter of a square = 4 x sides

Replacing with the value given:

20 = 4 s

Solving for s:

20/4=s

Side = 5 meters

Since the situation forms a right triangle (see attachment) we have to apply the Pythagorean Theorem:

c^2 = a^2 + b^2

Where c is the hypotenuse of the triangle (in this case length of the diagonal) and a and b are the other sides.

Replacing with the values given:

c^2 = 5^2 + 5^2

c^2 = 25+25

c^2 = 50

c = √50

c = 7.07 miles

Feel free to ask for more if needed or if you did not understand something.

7 0

3 years ago