Ask question

Ask question

All categories

2 years ago

12

Ms. allegre has 20 students in her class.There are 8 female students ,and the rest of the class are male . Which of these repres

ents the fraction of the students who are female ? A. 8/24 B. 8/16 C.24/8 D.16/24

1 answer:

Volgvan2 years ago

3 0

Answer:

all these answer choices are wrong? if there are 8 female students and 20 students total then it will be 8/20 which can be simplified to 4/10 or 2/5.

Step-by-step explanation:

8 females/ 20 students

You might be interested in

Vvvvvvv help me plzzzzzzzzzzzzzzz

Ivahew [28]

Answer:

the answer is 0

Step-by-step explanation:

she had -27 in her bank the she added 27

8 0

2 years ago

My mom packed my lunch three of the past five days, so the probability of my mom packing my lunch is 3/5. Is this Experimental o

Crank

Answer:

definitely theoretical. Seems how mom packed the lunch 3/5 times a week, the pattern will follow

Step-by-step explanation:

4 0

2 years ago

Mrs. Dalton needs 1/2 cup mixed nuts for her granola recipe. She only has a 1/4 cup measuring cup. Write the equivalent fraction

Sonbull [250]

1/4 = .25

1/2 = .50

If you multiply 1/4 by 2, it is equal to 2/4 or .50 .

If you want to simplify, 2/4 divided by 2 equals 1/2.

Actual equivalent fraction: 2/4
Simplified: 1/2

Hope I was able to help!

5 0

2 years ago

Kamal and Anand each Lent the same sum of money for 2 years at 5 percent at simple interest and compound interest respectively.

Ivenika [448]

Answer:

amount lent: ₹6000
interest received: Kamal, ₹600; Anand, ₹615.

Step-by-step explanation:

For principal P invested at simple interest rate r, the returned value in t years is ...

A = P(1 +rt)

If K is Kamal's returned value, the given numbers tell us ...

K = P(1 +0.05·2) = 1.1P

__

For principal P invested at compound interest rate r, with interest compounded annually for t years, the returned value is ...

A = P(1 +r)^t

If A is Anand's returned value, the given numbers tell us ...

A = P(1.05)² = 1.1025P

This latter amount is RS.15 more than the former one, so we have ...

1.1025P = 1.1P +15

0.0025P = 15 . . . . . . . . subtract 1.1P

P = 6000 . . . . . . . . . . . divide by 0.0025 . . . . the amount lent

Kamal received 1.1P -P = 0.1P = 600 on the investment.

Each lent ₹6000. Kamal received ₹600 in interest; Anand received ₹615 in interest.

4 0

3 years ago

The recursive function LaTeX: f\left(0\right)=1,\:f\left(n\right)=f\left(n-1\right)+2nf ( 0 ) = 1 , f ( n ) = f ( n − 1 ) + 2 n

m_a_m_a [10]

Question:

The recursive function $f(0) = 1$ , $f(n) = f(n-1) + 2n$ represents the nth term of a sequence. Determine the explicit function

Answer:

$f(n) = n^2 + n+1$

Step-by-step explanation:

Given

$f(0) = 1$

$f(n) = f(n-1) + 2n$

Required

Write an explicit formula

Let n = 1

$f(1) = f(1-1) + 2*1$

$f(1) = f(0) + 2$

$f(1) = 1 + 2 = 3$

Let n = 2

$f(2) = f(2-1) + 2*2$

$f(2) = f(1) + 4$

$f(2) = 3 + 4 = 7$

Let n =3

$f(3)=f(3-1) + 2 * 3$

$f(3)=f(2) + 6$

$f(3)=7+ 6 = 13$

Let n = 4

$f(4) = f(4 - 1) + 2 * 4$

$f(4) = f(3) + 8$

$f(4) = 13+ 8 = 21$

So, we have:

$f(1) = 3= 1 + 2 * 1=1+0*1*2*1$

$f(2) = 7= 3 + 2 * 2=1+1*2+2*2$

$f(3) = 13= 7 + 2 * 3= 1+2*3+2*3$

$f(4) = 21 = 13 + 2 * 4= 1+3*4 +2 *4$

Following the above pattern:

$f(n) = 1 + (n - 1) * n + 2 * n$

$f(n) = 1 + n(n - 1) + 2n$

Open bracket

$f(n) = 1 + n^2 - n + 2n$

$f(n) = 1 + n^2 + n$

$f(n) = n^2 + n+1$

3 0

2 years ago