Question

Hello everyone !! Help Please I will reward

Nancy rowed across the lake with her friend Kelly at a rate of 4 mph. Kelly then rowed back at a rate of 3 mph. If the lake is 6 miles across, how long did it take them to complete their trip?

Answer 1

if the lake is 6 miles across and nancy rowed at 3mph, that would mean nancy did the first trip in 2 hours. If kelly rowed at 2mph, then kelly did the trip in 3 hours. So the answer would be 5 hours.

6miles/3mph = 2hours
6miles/2mph= 3hours

Answer 2

yeah thats right

Answer 3

i was trying to type that first ;D

Answer 4

oh sorry lol

Answer 5

your fine! haha

Answer 6

I forgot the answer choices
A 1 1/3 hours
b 3 1/2 hours
c 1 1/6 hours
d 3 hours

Answer 7

Oh! thank you!

Answer 8

wait thats not one of the answer choices

Answer 9

your saying it would take 5 hours?

Answer 10

@Garrett372 shes/hes right?

Answer 11

let me re look at that real quick hold on

Answer 12

ok take your time

Answer 13

Yes its 5 hours

Answer 14

Oh thats not one of my answer choices :(

Answer 15

hold on

Answer 16

take your time

Answer 17

3 and a half hours

Answer 18

took 1 and a half hours to get there and 2 hours to come back

Answer 19

Thank you how did you figure that out ?

Answer 20

hence 3 1/2

Answer 21

oh thanks

Answer 22

yeah it was a confusing question

Answer 23

but you understand it now right?

Answer 24

thats my main goal for you

Answer 25

i gave you best response and ikr its the rate of change and i have 9 more questions to do

Answer 26

alright whoop them out ill help you

Answer 27

1 at a time

Answer 28

thank you so much!! and ok i will lol

Answer 29

Marsha works at a garment factory as a seamstress. She can sew her portion of 5 garments in one hour. If she always works 8-hour days, how many garments can Marsha sew her portion of in 3 days?

Answer 30

5 per hour. 8 hours per day for 3 days

Answer 31

i have the answer but tell me what you get first

Answer 32

A 40
B 120
C 13
D 15

Answer 33

would the constant rate of change be 5 per hour?

Answer 34

I think you are thinking about it to much, look at what i said before

Answer 35

I got 40

Answer 36

and yeah i second guess my self its a bad habit

Answer 37

so if she can so 5 per hour, and she works 8 hours a day. how many can she make in a day

Answer 38

?

Answer 39

40?

Answer 40

yes! now how many can she sew in 3 days if she can sew 40 in one day?

Answer 41

120?!?

Answer 42

Correct!

Answer 43

Great Job!

Answer 44

Yay!!

Answer 45

Martha is driving to Miami for Spring Break, and she averages 60 miles per hour for 3 hours while she's driving on the highway. While she's driving on side streets for 1 hour, she only averages 45 miles per hour. What is the total distance that she covers on her road trip?

Answer 46

Ok so how long does she drive on the highway? (60*3)

Answer 47

she drives 3 hours on the highway

Answer 48

no i mean distance sorry

Answer 49

its 60*3

Answer 50

oh its ok i got 180

Answer 51

Ok and now how far does she drive on the streets (45*1)

Answer 52

45

Answer 53

and add those two together and you got yourself your answer.

Answer 54

225

Answer 55

Yep!

Answer 56

YAY! omg you are so good with this

Answer 57

Kyle and Steve start at the same point and walk in opposite directions. If Kyle walks at 2 mph and Steve walks at 3 mph, how far apart will they be after 3 hours?

Answer 58

Thank you very much! Are you starting to understand this though?

Answer 59

Ok do (2*3) and (3*3) and add those two answers together

Answer 60

yes i understand i think i will try this problem out my self

Answer 61

oh sorry

Answer 62

oh ok

Answer 63

my bad!

Answer 64

no its ok!

Answer 65

but what do you get?

Answer 66

i got 15

Answer 67

yep and is that an answer choice?

Answer 68

yes it was and i got it right

Answer 69

Great i'm glad

Answer 70

send the next one but try it yourself and you can check your answer

Answer 71

i have 5 more problems to go and ok

Answer 72

Robert's average speed is 30 miles per hour in heavy traffic, and his average speed is 50 miles per hour in light traffic. If he is in heavy traffic for 1 hour and light traffic for 3 hours, how far does Robert travel?

Answer 73

i got 180

Answer 74

The answer is 180 miles

Answer 75

yay!

Answer 76

great job you are getting it!

Answer 77

i dont get this one



Nick and Willie go jet-skiing for the same amount of time. Nick travels 9 miles at a speed of 9 miles per hour, while Willie travels 13 miles at a speed of 13 miles per hour. For what amount of time were Nick and Willie each jet-skiing?

Answer 78

the answer is 2 hours

Answer 79

how?

Answer 80

look at it again and think about it

Answer 81

oh

Answer 82

oooh it was kind of a trick question i was thinking about how long they were jet sking thats how i got confused beacause they didnt tell you how long they were jet sking

Answer 83

i got it correct right?

Answer 84

oh it was wrong!

Answer 85

how

Answer 86

oh was it one hour?

Answer 87

it was 1 hour

Nick and Willie spent the same amount of time jet-skiing. So, use Nick's distance and speed to calculate the amount of time he and Willie spent jet-skiing.

Substitute d = 9 miles and r = 9 miles per hour into the distance formula, and solve for t.


d = rt
9 mi = (9 mph)(t)
1 hr = t

Therefore, Nick and Willie each spent 1 hour jet-skiing.

Answer 88

ahh im sorry it tricked me big time

Answer 89

they give explanations if you get it wrong

Answer 90

its ok i still have a good grade!

Answer 91

yeah it was so obvious

Answer 92

im ready for the next one

Answer 93

ok i am on number 7

If the ferry that Melissa is riding covers 100 miles in 2 hours, how fast is the ferry traveling?

Answer 94

would you divide that?

Answer 95

50 miles in 2 hours

Answer 96

50 miles per hour

Answer 97

yes!

Answer 98

oh yay i meant per hour thanks !