4 years ago

in a school the ratio of boys to girls 6/5. what is the probability of choosing a girl from a class of 22?

Mathematics

1 answer:

kifflom [539]4 years ago

8 0

the ratio 6/5 means for every 6 boys there are 5 girls.

Add the ratio: 6+5 = 11

Divide class total by 11: 22/11 = 2

Multiply each ratio number by 2 to find the number of boys and the number of girls:

6 x 2 = 12 boys

5 x 2 = 10 girls.

10 out of the 22 kids are girls.

The probability of picking a girl would be 10/22, which reduces to 5/11

You might be interested in

(HELP AS FAST AS YOU CAN)!!! This dot plot is symmetric, and the data set has no

Brums [2.3K]

Answer:

d. interquartile range

Step-by-step explanation:

the iqr measures the first, second, and third quartile, and the median.

8 0

3 years ago

If the units for x are feet and the units for a(x) are pounds per foot, what are the units for da/dx?

SOVA2 [1]

Change in a with respect to x
pounds per foot would be the unit
lb/ft

8 0

4 years ago

5 + 2n2 when n = 3. <br><br> (The 2 after the n is an exponent)

Pani-rosa [81]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Help! ASAP!!!

solniwko [45]

Answer:

7.2 units

Step-by-step explanation:

Coordinates of city A = (0, 0)

Coordinates of city B = (6, 4)

Use the distance formula to find the distance between the two cities as follows:

$AB = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$

Let,

$A(0, 0) = (x_1, y_1)$

$B(6, 4) = (x_2, y_2)$

Plug in the values into the formula

$AB = \sqrt{(6 - 0)^2 + (4 - 0)^2}$

$AB = \sqrt{(6)^2 + (4)^2}$

$AB = \sqrt{36 + 16} = \sqrt{52}$

$AB = 7.2$ (nearest tenth)

6 0

4 years ago

I NEED HELP ASAP IT'S DUE IN 10 MINUTES!!! I'LL GIVE BRAINLIEST!!!

ycow [4]

You answer is 12 :)...

3 0

3 years ago