In a random sample of students at a middle school, 24 wanted to change the mascot, and 30 wanted to keep the current mascot. Which is the best prediction for how many of the total of 1,140 students want to keep the current mascot?
(a) 507 students. (b) 600 students. (c) 633 students (d) 950 students

Answers

Answer 1

Answer: D is the answer because when you subtrcat it gets closest to 950

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Find the new amount, Increase 300 by 54%

Answers

54 % of 300 = 162
increased amount = 300 + 162 = 462

300*1.54
=462
20 charrrrrrrrr

Which of the following is an expression for “doubling a number N and dividing by 3” ?A)2+n/3
B)2n/3
C)n2/3
D)2/3n

Answers

1. Doubling a number means a number times 2, we don’t know that number so it’s considered 2n
1(in short words) n is a variable. N•2 = 2n.
2. Divide 2n by 3. This would mean 2n/3

It could be B or C HOWEVER the most formal way is B.
We always want the coefficient in front of the variable. You will see it in the future. Thanks to the multiplication property of equality, B & C will produce the same number. For example let n= 1

2•1/3= 2/3 ; this is with equation B
1•2/3= 2/3; this is with equation C

If your looking for two answers put B & C
If your looking for one answer put B
If it doesn’t say, then I’d recommend to be B .

Answer:

B or C

Step-by-step explanation:

Since the communitive property of multiplication states that A * B = B * A...

2n = n2.

2n is doubling n and /3 is dividing that number by 3.

Y divided by 2/3=1/2 what does y equal

Answers

Answer:

y=1/3

Step-by-step explanation:

Y divided by 2/3=1/2

y÷2/3=1/2

y×3/2=1/2

3y/2=1/2

Cross multiplying,

3y×2 = 1×2

6y=2

y=2/6

y=1/3

Cos^2a=cos^2a-sin^2a for all values of a.

Answers

Step-by-step explanation:

$cos2a=cos^2a-sin^2a$

Lets derive this equation,

we can write ,

$cos2a= cos(a+a)$

going by the identity,

$cos(a+b)= cosa cosb - sina sinb$

using the identity ,

$cos(a+a)= cosacosa-sinasina$ .................(1)

After simplification of equation no.1 we get -

$cos(2a)=cos^2a-sin^2a$ ............... (for any value of a)

Hence the equation is proved for every value of a.

Answer:

its true besties

Step-by-step explanation:

just got it correct on apx

How do u do this it's something about solving proportions and I have no idea how to do this plz help

Answers

Simple...what fun!

To solve for this type of problem...it's real simple!

I will show you the easiest and fastest way to solve...

so..you have...

$(2)/(5) = (x)/(35)$

Just..CROSS MULTIPLY!!

2*35=70
and
5*x=5x

Leaving you with....

5x=70

Easy...now divide!!

$(5x)/(5) = (70)/(5)$

x=14

To check your work...plug it in....

$(2)/(5) = (14)/(35)$

simplify...

14/7=2

and

35/7=5

Thus, your answer.

sam cut a pie into equal parts.There are 3 slices left.The angle measures for 3 slices is 72.how many slices did he cut?