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Oksana_A [137]
3 years ago
13

Please help me answer this question!!!!

Mathematics
1 answer:
kotykmax [81]3 years ago
3 0

9514 1404 393

Answer:

  y = 4x +3

Step-by-step explanation:

The slope formula can be used to find the slope:

  m = (y2 -y1)/(x2 -x1)

Using the first two lines of the table, we find the slope to be ...

  m = (11 -7)/(2 -1) = 4/1 = 4

__

The y-intercept can be found from the relation ...

  b = y -mx

Using the slope we found, and the first line of the table, we find the intercept to be ...

  b = 7 -4(1) = 3

__

Then the equation is ...

  y = mx +b . . . . . . slope-intercept form of the equation for a line

  y = 4x +3

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A pipe fills a barrel with vinegar in 20 minutes. A release valve on the barrel, used for drainage, can empty the barrel in 40 m
zloy xaker [14]

Answer:

40 minutes

Step-by-step explanation:

We have a load and a discharge, given by a speed that would be a barrel / minute.

Which means that the loading rate is: 1/20

And the discharge rate: 1/40

Since they are contrary, the result would be the subtraction between these two rates:

1/20 - 1/40 = 1 / x

1 / x = 0.025

x = 1 / 0.025

x = 40

Which means it will take 40 minutes to fill under the mentioned conditions

6 0
3 years ago
An ant walk about 3 inches per second how many miles per day could an ant travel if it walked without a break?
erastovalidia [21]

Answer:

Step-by-step explanation:

45/11 miles per day or ~4.091 miles per day

Step-by-step explanation:

3 inches per second

24 hours in a day

60 minutes in 1 hour

60 seconds in 1 minute

Amount of inches per minute: 3 x 60 = 180 inches

Amount of inches per hour: 180 x 60 = 10,800 inches

Amount of inches per day 10,800 x 24 = 259,200 inches

To find the number of feet that 259,200 inches is, divide by 12.

259,200/12 = 21,600 feet per day

To find the number of miles that 21,600 feet is, divide by 5280.

21,600/5280 = 45/11 = 4.09090909091 = ~ 4.091

So, an ant could walk 45/11 miles per day or ~4.091 miles per day if it walked without taking a break.

4 0
3 years ago
Read 2 more answers
Please help me answer this (and show steps)<br><br> thank you!
alexira [117]

Answer:

it's easy hope I could help

Step-by-step explanation:

the -3 goes on the y line

4/3 goes on the positive  side so on the y and x

8 0
3 years ago
A triangle ΔABC contains sides of lengths 9.6, 18, and 20.1, respectively. What type of triangle is described by these lengths?
maks197457 [2]

hence the triangle

correct me if I'm wrong

4 0
3 years ago
Read 2 more answers
Points D and E are midpoints of the sides of triangle ABC. The perimeter of the triangle is 48 units.
Kipish [7]

9514 1404 393

Answer:

  A.  2

Step-by-step explanation:

The perimeter is the sum of the side lengths:

  48 = (3t +3t) +(4t +4t) +(7t +6)

  42 = 21t . . . . . . . . . . . . . . . . . . . collect terms, subtract 6

  2 = t . . . . . . . . divide by 21

7 0
3 years ago
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