Find help: Please help me with my algebra. - Help.com



This post left anonymously

Please help me with my algebra.

i need this tomorrow at 6:45 a.m. eastern time.

1) Rhea exercised on a treadmill at the gym. When she was finished, the display showed she walked at an average speed of 3 miles per hour.
a) Write an equation that gives the number of miles y that Rhea would cover in x hours if she walked at this speed.
b) Explain why this is a direct variation and fine the value of k. What does this value represent in Rhea’s situation?

2) A baby pool that held 120 gallons of water is draining at a rate of 6 gal/min. The function f(x) = 120-6x gives the amount of water in the pool after x minutes. Find its intercepts. What does each intercept represent?

This open post was written 12 months ago | V/U/S: 192, 2, 3 | Edit Post | Leave a reply | Report Post


Reciprocity (0) Reciprocation Failure -- The poster has NOT helped anyone else yet!

Since writing this post Anonymous may have helped people, but has not within the last 4 days.

Post Tags (10)

Water, number, algebra, Situationist, Urban exploration, writing, infant, Find, Quantity, Hour (How Tags Affect Reciprocity)

Replies (2)

Where were you?

Click and drag to move the map around. FAQ: How we place people on this map »
You can also watch events on Help.com as they happen
Mouse over the map for 2 seconds to see an expanded, interactive view

mrzigg offline Verified User (12 months) Long Term User Shouts: 1 #
An Unknown Location | 12 months ago (7 minutes after post)

1
(a) y=3x (….yeah hard isn’t it)

(b) Not sure what they’re trying to say here but it sounds pretty dumb

2
at x=0 the intercept is f(x)=120 the original value
at x=20, the forula is f(x)=120-6(20)
which is f(x)=120-120=0
At this point the pool is empty

Quote this reply Report this reply to moderators
lonalyfirefl offline Unverified User #
An Unknown Location | 12 months ago (47 minutes after post)

for (b) of answer one they want you to recognize the direct corelation between you x and y. when X increases so does Y. K is the constant that influences the two. If x goes up by 1, Y goes up three times as much. K = 3

Quote this reply Report this reply to moderators
This account has been deactivated.

Invite Others to Help

A logged in and verified Help.com member has the ability to setup a Friends List and invite others to help with posts.