Mrs. synder must choose two of her homeroom students to be class representatives. the class consists of 13 girls and 9 boys. approximately what percent chance is there that the first student chosen is a boy and the second student chosen is a girl? (round to the nearest percent) a. 10% b. 25% c. 22% d. 15%

  B. 25%

Step-by-step explanation:

Given : Number of boys in the class = 13

Number of girls in the class = 9

Total students  = 13+9=22

Now, the number of ways to choose first boy then a girl =     (1)

Number of ways to choose nay two students :-

    (2)

Now, the probability that the first student chosen is a boy and the second student chosen is a girl :-

  [Divide (1) by (2)]

In percent ,

Hence, approximately 25% chance that the first student chosen is a boy and the second student chosen is a girl.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p