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3 years ago

it takes emma 20 minutes to get to school how many minutes will it take emma to get to school in a month

Mathematics

2 answers:

lianna [129]3 years ago

8 0

Answer:

400 min/6 hrs and 40 min

Step-by-step explanation:

there are 5 days in a school week assuming no holidays this month, so if its 100 min a week than 400 min a month assuming that is it exact month. then divided by 60.

sry im bad at englsh

tester [92]3 years ago

5 0

Answer:

it will depend on how many school days does the month has.

if it has 22 days it will takes her 440 minutes

20 minutes x 22 days

Hope this help you

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Find the standard form of the equation of the parabola with a focus at (0, 8) and a directrix at y = -8

Gekata [30.6K]

First, let $(x,y)$ be a point in our parabola. Since we know that the focus of our parabola is the point (0,8), we are going to use the distance formula to find the distance between the two points:
$\sqrt{(x-0)^{2}+(y-8)^{2}}$

Next, we are going to find the distance between the directrix and the point in our parabola. Remember that the distance between a point (x,y) of a parabola and its directrix, $y=c$ , is: $|y-c|$ . Since our directrix is y=-8, the distance to our point will be:
$|y-(-8)|$
$|y+8|$

Now, we are going to equate those two distances, and square them to get rid of the square root and the absolute value:
$\sqrt{(x-0)^{2}+(y-8)^{2}}=|y+8|$
$(\sqrt{(x-0)^{2}+(y-8)^{2}})^{2}=|y+8|^{2}$
$(x-0)^{2}+(y-8)^{2}=y+8$

Finally, we can expand and solve for $y$ :
$x^2+y^2-16y+64=y^2+16y+64$
$x^{2}-16y=16y$
$32y=x^{2}$
$y= \frac{1}{32} x^2$

We can conclude that the standard form of the equation of the parabola with a focus at (0, 8) and a directrix at y = -8 is $y= \frac{1}{32} x^{2}$

3 0

3 years ago

Suppose 72 gallons of water came out of a pipe in 8 minutes.

Masteriza [31]

Answer:

9 gallons of water per minute

Step-by-step explanation:

First identify what you know:

1) The pipe was flowing water for eight minutes.

2) In that eight minutes, 72 gallons of water came out.

So, if 72 gallons of water came out in eight minutes, how many gallons flowed out in a single minute? Well, assuming that the flow rate was consistent, then simply divide the total number of gallons that flowed out, by the number of minutes the pipe was open!

72/8 = 9

The pipe released 9 gallons of water per minute, thus resulting in 72 gallons of water in 8 minutes!

Hope this helps! :)

4 0

3 years ago

Is 5/16 smaller than 3/5

zheka24 [161]

Yes 5/6 is smaller than 3/5

4 0

3 years ago

Read 2 more answers

HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME HELP ME

muminat

Answer:

p ≥ -10

Step-by-step explanation:

Divide both sides by-9:

When dividing or multiplying by a negative number, always flip the inequality sign:

-9p/-9 > = 90/-9

Cancel out the negatives:

9p/9 > = 90/-9

Simplify the fraction:

p > = 90/-9

Simplify the signs:

p > = -90/9

Find the greatest common factor of the numerator and denominator:

p >= -10 · 9/ 1 · 9

Factor out and cancel the greatest common factor:

p > = -10

6 0

3 years ago

6.204 = 6 + 0.2+ ? What is it?

matrenka [14]

Answer:

0.004

Step-by-step explanation:

6.204 = 6 + 0.2 + 0.044.

The answer is 0.004.

4 0

3 years ago

it takes emma 20 minutes to get to school how many minutes will it take emma to get to school in a month​

it takes emma 20 minutes to get to school how many minutes will it take emma to get to school in a month