Question

Can someone help me with this algebra 2 assignment? I'm lost & I would appreciate it so much!?

Answer 1

1. Write a word problem describing the time it takes to complete an activity individually
and with a friend.
For example, if John takes 2 hours to mow his lawn and it takes his sister Maria 4 hours to mow the same lawn, how long would it take John and Maria to mow the lawn together?

Answer 2

2. Write a rational equation based upon the word problem you created. The rational equation based upon the scenario above would be 1 over 2 + 1 over 4 = 1 over x. Each fraction represents the amount of the lawn mowed in one hour. The fraction of 1 over 2 is John’s portion. Maria’s share is represented by 1 over 4. The time it would take for both of them to mow the lawn is represented by 1 over x.

3. Solve the rational equation. Show your work.

Answer 3

Here is a similar example for #1: https://answers.yahoo.com/question/index?qid=20101213170345AAT0toR

three workers can do a contraction in 5 hours
a hero worker joins their group and they finish it in 2.5 hours
how much would it take for the super worker to finish the contraction alone?

x= amount of work one worker does in one hour
y= amount of work super hero worker does in an hour
3*x*5=15x=the amount of whole contraction
3*x*2.5+y*2.5=also the amount of contraction
so we can write :
15x=7.5x+2.5y => y=3x and if t is the time it takes for the hero to finish the job

Answer 4

Okay so does that mean for the first part I have to make up a word problem?

Answer 5

@Firejay5 Okay so does that mean for the first part I have to make up a word problem?

Answer 6

do exactly what the problem is presented with and #1 should be easy.

Answer 7

@Firejay5 I'm going to make up a word problem so...

Two guys can finish a house painting in 4 hours

One guy comes along & they finish it in 2.5 hours

How long would it take for the one guy to finish the house painting by himself?

Answer 8

@Firejay5 I get the making up the word problem part but I need help with the actual work

Answer 9

@Firejay5 since i said 4 hours it would probably go something like this...

the letter x would equal how long it takes the two guys to paint the house in one hour

the letter y would equal how long it takes the one to paint the house in an hour right?