1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alexandr402 [8]
2 years ago
6

an hourglass is turned over with the top part filled with sand. after 3 minutes, there are 855 ml of sand in the top half. after

10 minutes, there are 750 ml of sand in the top half. which equation represents this situation
Mathematics
2 answers:
Anettt [7]2 years ago
7 0

Answer:

y=-15x+900

Step-by-step explanation:

Let x be the number of minutes and y be the quantity of sand in the hour glass.

After 3 minutes,

Quantity of sand in the top half=855 ml

After 10 minutes , quantity of sand in the top half=750 ml

We have to find the equation which represents this situation.

Now, we get two points (3,855) and (10,750)

Slope formula :m=\frac{y_2-y_1}{x_2-x_1}

By using slope formula

Slope  =\frac{750-855}{10-3}=\frac{-105}{7}=-15

The equation of  a line with slope m passing through the point (x_1,y_1)

y-y_1=m(x-x_1)

The equation of line with slope -15 and passing through the point (3,855) is give by

y-855=-15(x-3)

y-855=-15x+45

y=-15x+45+855=-15x+900

Hence, the equation represents this situation is given by

y=-15x+900

Hitman42 [59]2 years ago
5 0

An hourglass is turned over with the top part filled with sand. after 3 minutes, there are 855 ml of sand in the top half. after 10 minutes, there are 750 ml of sand in the top half. This can be represents a two points ( 3, 855) and (10, 750) . using this to solve the slope m = (750-855)/(10-3) = -15. And using one point the equation is y = -15x + 900.

You might be interested in
Graph y=2/3x-4<br><br><br> Plz hurry I´m trying to pass my math quiz
Lemur [1.5K]

Answer:

i believe if you open that file up you will get your answer

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Find the missing measures for the rectangle
Vadim26 [7]
Do you have a picture or something to accompany the question? 
5 0
2 years ago
Easy question Give a formula used for finding the area of a square. Then use the formula to find the area of a square with a sid
Alik [6]

A=s^2

A=6.3^2

(A=6.3x6.3)


And your answer would be:


A=39.69cm^2

4 0
3 years ago
Find the distance :
faltersainse [42]
1. You would do 45 × 3 = 135 miles
2. 630 ÷ 2 = 315. 630 + 315 = 945 miles
3. 54 × 11 = 594 miles

1. Time is distance ÷ speed, so 4760 ÷ 560 = 8 1/2hours
2. 27 ÷ 54 = 0.5 hours, or 30 minutes
3. 1748 ÷ 437 = 4 hours

I hope this helps!
4 0
3 years ago
Now, use your research to decide which business is the best choice for this community. Explain your choice in two to three sente
MA_775_DIABLO [31]

Answer:

The business which offers services needed by the citizens of the community, and which is most profitable. That is the best business.

Step-by-step explanation:

You didn't state which community you are referring to. However, the business that is best for any community is a business which offers services mostly needed by the citizens of the community, and which is most profitable.

9 0
3 years ago
Read 2 more answers
Other questions:
  • He minimum and maximum temperature for a day in cupcake town can be modeled by the equation below: 3|x − 8| + 15 = 18 what are t
    11·1 answer
  • Find the quotient of (-5+ i)/(-7 + i)
    14·1 answer
  • Can someone please help me with this problem?
    12·1 answer
  • A recipe for chicken marinade says, ''Mix 3 parts oil with 2 parts soy sauce and 1 part orange juice. ''if you need 42 cups of m
    8·1 answer
  • Plz i have no clue and this is due in 15 mins
    14·2 answers
  • Which shows the ratio 12:18 in simplest form?
    5·1 answer
  • In a circle of any size, what ratio does
    15·2 answers
  • In the equation g+h= -5, if g=11 find value of h
    14·1 answer
  • A train traveling 200 miles per hour for 1 1/2 hours covers the same distance as one traveling at 75 miles per hour for how many
    14·1 answer
  • Click on the point f(-3)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!