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Topic: **St math homework****Question:**
I have four questions that I really need help with. I am a really good straight A student, but my teacher didn't cover this as much.
Write and Solve an equation for each situation:
Marla begins walking at 3mi/h toward the library. Her friend meets her at the halfway point and drives her the rest of the way to the library. The distance to the library is 4 miles. How many hours did Marla walk?
Fred begins walking toward John's house at 3 mi/h. John leaves his house at the same time and walks toward Fred's house on the same path at a rate of 2mi/h. How long will it be before they meet if the distance between the house is 4 miles?
A train leaves the station at 6:00 P.M. traveling west at 80mi/h. On a parallel track, a second train leaves the station 3 hours later traveling west at 100mi/h. At what time will the second train catch up with the first?
It takes 1 hour longer to fly to St. Paul at 200 mi/h than it does to return at 250 mi/h. How far away is St. Paul?
If you could answer all, or even one of them, that would help a ton... Thanks

May 23, 2019 / By Ewane

How about YOU TRY. Show your work and where you're having problems. Then one of us can HELP by HELPING you understand this. Otherwise, just DOING your work is no HELP.

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Did you like the answer? We found more questions related to the topic: **St math homework**

I think the complete statement of the problem is (5x-1)+(-3x-1) = 0 The rule is to combine like terms. Note that we have a term x plus some constants in the equation. Let's combine x's first 5x+ (-3x) = 2x Now combine constants -1 + (-1) = -2 So we have 2x - 2 = 0 Now we need to get x to stand alone, so we add 2 to each side of the equation 2x -2 +2 = 0 + 2 or 2x = 2 Now we divide by 2 and get x = 1 Let's check (5x1 -1) + (-3x1 -1) = (5 -1) + (-3 -1) = (4) + (-4) = 0 All's well and good

(5x-1)+(3x-1) ...bring equation down 5x-1+3x-1.....combine like terms 5x+3x=8x 8x-1-1...combine like terms -1-1=-2 8x-2 I think that's right depending on what your directions say do. If you have to find x the answer is. 0.25 if not its 8x-2

Sorry, due to lack of time, I can onl answer the first. We know the distance from wherever Marla started from is 4 miles, and she stops halfway to hitch a ride with her friend. That stop point is at the 2 mile point. So in how long does it take for Marla to walk 2 miles at 3miles/hr? Well if it was 3 miles, it would've taken her an hour. But instead, it was 2, meaning it would've taken 2/3 the time to walk an hour, also meaning 2/3 of an hour. 2/3 of an hour, would be 40 minutes

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The mean is the average. I can't tell if the 1. is part of the problem, so I'll have to solve it two ways. First, without. (4.8 + 1.6 + 5.2 + x)/4 = 3.7 Multiply both sides by 4 (4.8 + 1.6 + 5.2 + x) = 14.8 Add like terms 11.6 + x = 14.8 Subtract 11.6 x = 3.2 Now with: (1. + 4.8 + 1.6 + 5.2 + x)/5 = 3.7 Multiply both by 5 1. + 4.8 + 1.6 + 5.2 + x = 18.5 Combine like terms 12.6 + x = 18.5 subtract 12.6 x = 5.9

What you want to do is add all those numbers and divide it by 4 (the number of numbers) and set it equal to 3.7 So: (4.8+1.6+5.2+x) divided by 4 = 3.7 Multiply both sides by 4 to get (4.8+1.6+5.2+x)= 14.8 Then 11.6 + x = 14.8 Subtract 11.6 from both sides and you get x = 3.2 Hope this helps! (:

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