Question

HEEEEELLLLPPP!!!! URGENT

Answer 1

Seriously, there are trivial IF you under stand the stem and leaf plot.

4|3 4 6 means 43, 44, and 46

Are you SURE you can't answer the questions?

Answer 2

I never done this kind of problem before.

Answer 3

Then you have met the premise of my suspicion.

Did you see what I did with 43, 44, and 46, above? The stem and leaf is just a way to represent values in a more orderly and compact manner.

Answer 4

okauy

Answer 5

so if you see
3|4 5 8 9 what would the numbers be?

Answer 6

The "Key" is trying to explain that to you. The number left of the vertical bar is the 10s digit. The numbers right of the vertical bar are all the observed 1s digits. So, 34, 35, 38, 39.

Are you seeing it?

Answer 7

yes.

Answer 8

It's time to answer part (a). What is the least 10s digit?

Answer 9

would it be 0?

Answer 10

No, 3, 4, 5, and 6 are your only choices. Don't even look on the right side for now.

Answer 11

3

Answer 12

Okay, now it's time to look on the right side. What is the least 1s digit (right side) in the group that begins with 3 (left side)?

Answer 13

5

Answer 14

so for a the answer is 35?

Answer 15

Why do you doubt? Every expenditure in the 40s, 50, or 60s, clearly is greater than anything in the 30s. 37 and 38 are also greater than 35. You have just completed part (a).

What about part (b)?

Answer 16

okay . so for part b when its talking about 60s is it talking about the column 6 on the left side?

Answer 17

Yes. Then what to do with the right side? Read the question carefully.

Answer 18

would we have to do something with the 14 couples part?

Answer 19

Just read question (b). What does it want to know?

Answer 20

how many couples spent an amount in the 60s

Answer 21

How many entries are there in the '6' row?

Answer 22

2?

Answer 23

You have just answered part (b)!

Answer 24

Thanx your being a big help. :) and part C is 48 right

Answer 25

Perfect. Now, go read my first post. Pretty easy once you understand the table. Agreed?

Answer 26

agreed :)

Answer 27

Good work. Go get the next problem!

Answer 28

:)

Answer 29

another question do you know how to do this?

Answer 30

would we do proportion?

Answer 31

"Varies Inversely" MEANS \(Current = \dfrac{k}{Resistance}\). See how if "Resistance" increases, then "Current" must decrease? This is an "Inverse" relationship.

Answer 32

so we would sub in the equation?

Answer 33

Correct. Just substitute the two given values and solve for the mysterious value "k".

Answer 34

but we dont know th resistance for a 10A

Answer 35

We don't care about 10 ohm yet. We need k.

8 A and 35 Ohm are just for this purpose. Substitute these and find k.

Answer 36

Okauy

Answer 37

k = 280 ?

Answer 38

It's really 280 A\(\Omega\), but you get the idea. Now you have a formula you can use to find the resistance needed for 10 A. Substitute 10 A and k and solve for ohms.

Answer 39

THANK YOU :)

Answer 40

No worries. It's what we do here. ;-)