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3 years ago

Help! Rational equations confuse me

Mathematics

1 answer:

torisob [31]3 years ago

6 0

Cross Multiply to get 3x+7=10x

Divide by 7

x = 1

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The table shows preferences of dancing or playing sports for male and female students:

GuDViN [60]

The conditional relative frequency for female students who prefer playing sports is 34%.

<h3>How to determine the statistic calculated?</h3>

The table of values is given as:

Sports Dancing Row totals

Male students 18 16 34

Female students 18 35 53

Column totals 36 51 87

Mason's calculation is given as:

P = 21%

This is gotten by

18/87 = 21%

The above represents the joint relative frequency of female students who prefer playing sports.

To calculate the conditional relative frequency, he should divide 18 by the row total.

So, we have

18/53 = 34%

Hence, the conditional relative frequency for female students who prefer playing sports is 34%.

Read more about relative frequency at:

brainly.com/question/16832475

#SPJ1

5 0

2 years ago

A cyclist rides her bike at a speed of 18 km/h what is the speed in meters per second? How many meters will the cyclist travel i

Alisiya [41]

Answer:

The speed is:

5 meters per second

In then seconds: 50 meters

Step-by-step explanation:

1 hour = 3600 seconds

1 km = 1000 meters

18km = 18*1000 = 18000 meters

then:

18km/h = 18000m/3600sec = 5m/s

The speed is:

5 meters per second

proportions:

5 meters ⇔ 1 second

W meters ⇔ 10 seconds

W = 5*10/1

W = 50 meters

6 0

3 years ago

I don’t understand, HELPPP

goldenfox [79]

$\frac{-6xy^{3}z^5}{-36x^{2}y^{2}z^4}$

First cross out the -6 and -36. Six will go into 6 one time and 6 will go into -36 six times so we have the following after crossing out.

$\frac{-6xy^{3}z^5}{-36x^{2}y^{2}z^4}$
$\frac{xy^{3}z^5}{6x^{2}y^{2}z^4}$ <---After crossing out

Next cross out the x / x^2 which will give us the following:
$\frac{xy^{3}z^5}{6x^{2}y^{2}z^4}$
$\frac{y^{3}z^5}{6xy^{2}z^4}$ <---After crossing out

Now cross out the y^2 / y^3
$\frac{y^{3}z^5}{6xy^{2}z^4}$
$\frac{yz^5}{6xz^4}$ <----After crossing out

All that is left is to cross out the z^5 / z^4 and we are done.
$\frac{yz^5}{6xz^4}$
$\frac{yz}{6x}$ <----After crossing out and we are done.

$\frac{-6xy^{3}z^5}{-36x^{2}y^{2}z^4} = \frac{yz}{6x}$

8 0

3 years ago

the population in a sanctuary increases at a steady rate the graph of the population overtime has the points (1,105) and (3,315)

horrorfan [7]

The answer can be (5525)

5 0

3 years ago

Water flows through a pipe at a rate of 91 fluid ounces every 2.5 weeks. Express this rate of flow in cups per hour. Round your

Ulleksa [173]

Answer:

Step-by-step explanation:

First, we convert:

ounces to cups
weeks to hours

Result of conversion:

91 fluid ounces = 11.375 cups (1 cup = 8 ounces)
2.5 weeks = 420 hours (1 week = 168 hours)

To get the rate, we must divide the number of cups by number of hours

11.375 cups / 420 hours = 0.027 cups per hour = 0.03 cups per hour (approximated)

Hope that helps!

7 0

3 years ago