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Mathematics 11 Online
OpenStudy (anonymous):

A farmer's conveyor belt carries bales of hay from the ground to the barn loft. The conveyor belt moves at 80 ft/min. How many seconds does it take for a bale of hay to go from the ground to the barn loft?

OpenStudy (anonymous):

OpenStudy (anonymous):

ok

OpenStudy (danjs):

recall also, distance= rate*time they give you the rate for the belt 80ft/min

OpenStudy (anonymous):

6 is the beginning right

OpenStudy (anonymous):

what do i do next

OpenStudy (anonymous):

13.3?

OpenStudy (anonymous):

is that correct?

OpenStudy (anonymous):

.075?

OpenStudy (danjs):

i wrote those trig things wrong. sorry

OpenStudy (anonymous):

what do i do next?

OpenStudy (danjs):

the ramp length , hypotenuse is... sin(30) = 12 / h h = 12/sin(30)

OpenStudy (anonymous):

6?

OpenStudy (danjs):

sin(angle)=opposite side / hypotenuse 12 / sin(30) = 24

OpenStudy (anonymous):

4?

OpenStudy (danjs):

distance = rate*time 24 = 80*t t = 3/10 sorry bout that

OpenStudy (anonymous):

so .3?

OpenStudy (mathmale):

the hay is lifted 12 feet, so the hypotenuse of this triangle could not be 6. Use the given information to find the hypotenuse: angle and height. Please look carefully at the problem. The hay is lifted 12 feet. How could the hypotenuse possibly be only 4 or 6 feet? Use trig to find the length of the hypotenuse. And please show your work, so that others can give you meaningful feedback on what you have done.

OpenStudy (anonymous):

i just dont understnad how to do this problem and my work is on a calculator where im just dividng

OpenStudy (mathmale):

@pleasehelpme5 so .3? I see a distinct pattern of guessing on your part. This is NOT the way to larn math. Please start by asking questions to help you understand what this problem is all about.

OpenStudy (danjs):

3/10 min, 60 seconds per 1 min, so \[\frac{ 3/10~\min }{ 1 }*\frac{ 60~~\sec }{ 1 ~~\min }= (180/10) \sec = 18 ~\sec\]

OpenStudy (anonymous):

ok that makes more sense

OpenStudy (anonymous):

thank you for the help

OpenStudy (danjs):

1- find the distance to travel to the top using the sin function 2 - use d = rate*time to get the time to travel that distance at the given rate 3 - correct units

OpenStudy (anonymous):

ok thanks so 18 sec is the final answer?

OpenStudy (anonymous):

can you help me with a few other problems

OpenStudy (danjs):

yeah i misstyped the thing first, had to correct it

OpenStudy (anonymous):

ok thanks so much

OpenStudy (mathmale):

If you have other problems to do, please post them separately in the Ask a question box. Please refer back to what DanJS has done and try to apply that knowledge before y ou ask for help.

OpenStudy (anonymous):

ok thanks

OpenStudy (danjs):

good with trig functions and rate of travel now, yah

OpenStudy (danjs):

welcome

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