the ramp below is used to move crates of fruit to loading docks of different heights. when the horizontal distance AB is 12 meters, the height of the loading dock, BC, is 4 meters. what is the height of the loading dock?
12 meters
8 meters
9 meters
15 meters
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
this is the ramp
Vocaloid (vocaloid):
hint: set up a proportion
height of small triangle/base of small triangle = height of big triangle/base of big triangle
OpenStudy (anonymous):
@ganeshie8
@Nnesha
OpenStudy (anonymous):
thats the part i need help on
Vocaloid (vocaloid):
4/12 = x/(12+15)
solve for x
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
would it be 8 meters?
@Vocaloid
Vocaloid (vocaloid):
nope, check your math again
Vocaloid (vocaloid):
start by cross-multiplying
OpenStudy (anonymous):
12?
Vocaloid (vocaloid):
please stop guessing and solve for x
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
im not guessing
Vocaloid (vocaloid):
then show me your math
Vocaloid (vocaloid):
|dw:1447342625486:dw|
OpenStudy (anonymous):
4 x 12 = 44
12 x 15 = 180
exactly how r u supposed
OpenStudy (anonymous):
48 sorry
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
27 x 4 is 108
so 12 time what is x makes no sense
OpenStudy (anonymous):
|dw:1447342758342:dw|
OpenStudy (anonymous):
i swear it has to be 8
OpenStudy (anonymous):
@Allenismyname
@tapha
@TheSmartOne
@alekos
OpenStudy (tapha):
srry im here
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
so basically 4(27/4)
OpenStudy (anonymous):
4
12
=
x
12+15
Step 1: Cross-multiply.
4
12
=
x
(12+15)
4*(12+15)=x*(12)
108=12x
Step 2: Flip the equation.
12x=108
Step 3: Divide both sides by 12.
12x
12
=
108
12
x=9
OpenStudy (anonymous):
i mean 12 V.v
OpenStudy (anonymous):
x=9
OpenStudy (anonymous):
oh i multiplied that part thats why i got 8 ok thanks
Still Need Help?
Join the QuestionCove community and study together with friends!