Question

A plant 3 centimeters tall is placed by a window. If it grows 4 centimeters a day, how many days will it take to be 51 centimeters tall?
A.12
B.17
C.12.75
D.13

Answer 1

@blurbendy

Answer 2

@mebs

Answer 3

51 = 3 + 4t solve for t

Answer 4

-3 on both sides?

Answer 5

yes

Answer 6

So, 4t=47?

Answer 7

no

Answer 8

its 4t = 48

Answer 9

?

Answer 10

Oh.

Answer 11

You could think of this as dividing the amount the plant needs to grow (51 cm - 3 cm=48 cm) into however many days of growth at 4 cm/day. What is 48 / 4?

Answer 12

So...t=12?

Answer 13

yes

Answer 14

yes!

Answer 15

Yaya!

Answer 16

lool

Answer 17

now check your work:

3 cm+ 12 days * 4 cm/day = 3 cm + 48 cm = 51 cm

Answer 18

Yaya

Answer 19

who says that stuff nowadays...

Answer 20

What? Yaya?

Answer 21

:/

Answer 22

Well then..

Answer 23

Try this...

Answer 24

the charming @hadleydarcym does, that's good enough for me! ;-)

Answer 25

Write and simplify the equation you would use to solve the problem below.

A farmer builds a rectangular pen with a perimeter of 116 feet. If the length is 5 feet more than the width, what is the width?
A.w + 5 = 116
B.4w + 10 = 116
C.2w + 5 = 116
D.2w + 10 = 116

Answer 26

Awe! Thank you!

Answer 27

now, who confuses "awe" and "aw"? unfortunately, same answer :-)

Answer 28

Hmm..Hoekay. (:

Answer 29

what's the formula for the perimeter of a rectangle?

Answer 30

-_-

Answer 31

what is the perimeter?

Answer 32

it's just the length of all the sides, right?

Answer 33

Peremeter is adding up the lengths of all sides.

Answer 34

...yes

Answer 35

good. so, we have a rectangle, and it has dimensions l for length and w for width. can you write the formula for perimeter of that rectangle? it's just all the sides added up...

Answer 36

here you know that 2w + 2l = 116

and that l = (w+5)

Answer 37

Hmm.

Answer 38

sub for l

you get 2(w+5) +2w = 116

Answer 39

...2w+10+2w=116

Answer 40

than expand and simplify

2w + 10 +2w = 116 =) you can do the rest now..common @hadleydarcym

Answer 41

Combine like terms?

Answer 42

\[P = l + l+ w+w\]
and as @mebs pointed out, \(l = w+5\) because the length is 5 feet more than the width.
\[P = (w+5) + (w+5) + w + w\]and that whole thing we know to be equal to 116
so
\[116 = (w+5)+(w+5)+w+w\]

Answer 43

combining like terms is good.

Answer 44

remember, you're just trying to get it to look like one of your answer choices, so take a look at the list after each manipulation!

Answer 45

Its d. Right?

Answer 46

p.s. as long as I'm correcting people's word choices here, it's "come on", not "common" :-)

@hadleydarcym sorry, that's incorrect. don't you have 4 w's in your equation?

Answer 47

It auto submitted it. I was timed...

Answer 48

Thanks though.

Answer 49

\[116 = (w+5) + (w+5) + w + w\]\[116 = w + 5 + w + 5 + w + w\]\[116 = 4*w + 10\]

Answer 50

I'm more interested in you learning how to do it, not so concerned about getting any one question done in time...

Answer 51

can you solve that equation for w?

Answer 52

4w+10. Hmm.

Answer 53

YAYA!

Answer 54

\[116 = 4w+10\]You want to get the w term all by itself on one side...

Answer 55

Yay

Answer 56

how about subtracting 10 from both sides, what does that give you?

Answer 57

4w=106?

Answer 58

And then divide them both by 4?

Answer 59

Yaya

Answer 60

Alright now @mebs . I see you like my words...

Answer 61

=D

Answer 62

Haha

Answer 63

lool cya yw

Answer 64

Huh?

Answer 65

What the frack is that supposed to mean?

Answer 66

what do you mean what whats supposed to mean? =?

Answer 67

The whatever you said..like...lool cyl yw? What the frack?

Answer 68

its translated into your language as:

haha your welcome

Answer 69

what, did you lose your magic decoder ring?

Answer 70

yea what is the meaning of this!!?

Answer 71

I don't even know. -_-

Answer 72

well then -.-'''

Answer 73

And whaaaatttt?

Answer 74

Haha

Answer 75

that supposed to be seat pouring down your forehead after doing tedious math problems.. that rarely happens to me...

Answer 76

sweat**

Answer 77

the silliness factor here is unbounded, I think :-)

Answer 78

Hahaha. I'm just sitting here...Listening to all of this. (:

Answer 79

Well...Reading

Answer 80

@whpalmer4 yea math people are hilarious haha

Answer 81

often without even trying to be :-)

or as a friend used to say "funny ha ha or funny strange" :-)

Answer 82

you should see my math prof when he's trying to crack a joke ...

Answer 83

Haha

Answer 84

my old calculus teacher, bless his heart, always mispronounced asymptote...he said as_mytote (_ represents a letter which will cause the openstudy censor to change the word)

Answer 85

Haha

Answer 86

@whpalmer4

Answer 87

I get really scared because he might be giving us some really hard problems!! It's strange, I like how he's Russian and tries to speak English its too funny.

Answer 88

Wow. Just. Wooowwwww. -_-

Answer 89

as long as we're talking math silliness, I think you should both go listen to this very fine song brought to you by a former math professor named Tom Lehrer:

http://www.youtube.com/watch?v=qU_j5cQ2sfQ

Answer 90

When he can't find the right word in English to explain himself, he swears in Russian!!!! It's absolutely hilarious...not only that but there are only like 6 people in his class including me haha..

Answer 91

is math humor to cheesy for you =S @hadleydarcym haha

Answer 92

Nahh. Lol. It's fine. (:

Answer 93

I am joking @hadleydarcym ... I really am. Now get back to work....

Answer 94

Work? What is this work concept you speak of? XD

Answer 95

there...your getting the hang of it...Get to work!!!

Answer 96

hmmm.

Answer 97

i am confuseddddedddeeddd