A book club has 10 members.How many ways can they choose a president, vice president, and secretary from among the members?

A.
720

B.
30

C.
100

D.
120

Answers

Answer 1

Answer: slot method
1st slot, 10 options
2nd slot, 9 options (1 went to first slot)
3rd slot, 8 options (1 moer to 2nd slot)

multiply them
10*9*8=720 options

A is answer

Answer 2

Answer: herese 10 choices for president

there would 9 choices for vice

8 choices for secretary

so 10*9*8=720

720 choices

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The table shows the results of rolling a number cube, with sides labeled 1 through 6, several times. What is the experimental probability of rolling a 2 or 4?
Express your answer in simplest form.
OUTCOME: 1 2 3 4 5 6
NUMBER OF:10 6 4 8 6 6
TIMES AND
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OCCURRED
PLEASE HELP AND MAKE SURE YOUR RIGHT PLEASE I'LL AWARD 50 POINTS and also the answer is a fraction box

Answers

According to the table, the die was rolled 40 times:

10+6+4+8+6+6=40

odds of rolling a 2 were 6/40 and the odds of rolling a 4 were 8/40

P(2)=6/40

P(4)=8/40

P(2 or 4)=6/40+8/40=14/40 when simplified, its 7/20

7/20=0.35 or 35%

Answer= 7/20 or 35%

Answer: 1/4

The table shows the results of rolling a number cube, with sides labeled 1 through 6, several times.

What is the experimental probability of rolling a 2 or a 4?

Enter your answer as a fraction in simplest form, in the box.

1/4 I took the test.

Addictive inverse of 7/9

Answers

the answer is -7/9 because the additive inverse is pretty much just the opposite of a number hope this helps

I pretty sure your answer is -7/-9

Which is the best estimate for the product of 1,903.003 × 198.7?A.

4,000,000

B.

400,000

C.

40,000

D.

4,000

Answers

If you round 1,903.003 and 198.7 to the nearest hundred you will get 1900 and 200.

1900 * 200 = 380000

Round 380000----400000

The best estimate is B. 400,000

Answer:

the answer is B

Step-by-step explanation:

If you round 1,903.003 and 198.7 to the nearest hundred you will get 1900 and 200.

1900 * 200 = 380000

Round 380000----400000

The best estimate is B. 400,000

When should Estimation not be used?A. When adding many numbers mentally

B. When subtracting large numbers mentally

C. when finding the exact amount

Answers

C. when finding the exact amount

Could anyone please help me find k divided by 9 = 12 as well as 84n = 504 and 6 = m over 148? I need explanations...

Answers

k / 9 = 12
Multiply each side of the equation by 9 : k = 108

84 n = 504
Divide each side of the equation by 84 : n = 6

6 = m / 148
Multiply each side of the equation by 148 : 888 = m

So I have no idea how this even works so yeah can somebody please help me

Answers

I'll do the first one to get you started.

We want to compare the two fractions 3/4 and 7/8. For now, let's assume they are equal. Chances are they aren't, but we'll assume they are until we know otherwise.

So we have this equation 3/4 = 7/8

Let's cross multiply to get 3*8 = 4*7. Check out the attached image to see what I mean about "cross multiply" if you're not sure.

The equation 3*8 = 4*7 turns into 24 = 28 after you simplify each side. Clearly both sides aren't the same so the equation is not true. Meaning that the original equation 3/4 = 7/8 is not true. The right side of 24 = 28 is larger, so the right side of 3/4 = 7/8 is larger

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Here's how it looks like listed out

3/4 = 7/8

3*8 = 4*7

24 = 28

The right side is larger, so we must change all the equal signs to less than signs

3/4 < 7/8

3*8 < 4*7

24 < 28

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So that is why 3/4 is less than 7/8

Alternatively, you can use your calculator to find that 3/4 = 0.75 and 7/8 = 0.875; comparing 0.75 and 0.875, we see that 0.875 is larger. Therefore 7/8 is larger.

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