Question

WILL FAN MEDAL AND GIVE 2 OWL BUCKS :)
A rectangular office is 14 feet by 10 ft. Both the length and the width are expanded by X feet so that the office is three times it original size. Which of the following equations can be used to find the value of x?

A. 140=X^2
B.420=3x^2
C.140=140+24x+x^2
D.420=140+24x+x^2

Answer 1

B

Answer 2

@clanger555 How did you get that?

Answer 3

I guessed

Answer 4

I don't understand how they got B.. /:

Answer 5

I mean A not B

Answer 6

It's Z
Hope it helps :)

Answer 7

Z?

Answer 8

Yup

Answer 9

There is no Z /:

Answer 10

Oh

Answer 11

It's A because since it's being expanded by the length and width you will do x to the second power of 2 and the original area is 420 hope this helped

Answer 12

No... I looked it up and it says it's E

Answer 13

Hope it helped you! :D

Answer 14

There is no E...

Answer 15

OMG!!!!!!!!!!!! V?

Answer 16

I'm done I'm like so done with this

Answer 17

the office is three times it original size.

(14 + x) * (10 + x) = 3* (14)*(10)

x^2 + 24x + 140 = 420 -->

@finiteok Which option is this?